Transformation functions — interpolation & spatial

This page is the generated field list for the interpolation & spatial transformation functions — filling gaps along the time axis (interpolationSerial), moving values across locations or onto a grid (interpolationSpatial), elevation-based adjustments (altitude), vector rotation between coordinate systems (rotation), and computing a value from location attributes (multipleLocationAttributes). Part of the transformation function catalogue; see that page for the shared <transformationModule>/<transformation> mechanics these all sit inside.

At a glance

Covers : interpolationSerial (gap-fill/extrapolate one series in time), interpolationSpatial (20 methods — average, inverse distance, kriging, Thiessen polygon, triangulation, and more — moving values across locations or onto/off a grid), altitude (elevation lapse, zero-degree altitude, dry-cell removal), rotation (rotate u/v vectors between a rotated-pole grid and WGS 1984), multipleLocationAttributes (regression/threshold calculations driven by location attributes).

Used inside : A <transformation>, <periodTransformation>, or <rangeTransformation> in a transformationModule file.

Related : Transformations task guide’s worked example uses interpolationSerial → linear.

Minimal example

Config/ModuleConfigFiles/PreProcessObservations 1.00 default.xml

<?xml version="1.0" encoding="UTF-8"?>
<transformationModule xmlns="http://www.wldelft.nl/fews" version="1.0">
  <transformation id="FillGapsQobs">
    <interpolationSerial>
      <linear>
        <inputVariable>
          <timeSeriesSet>
            <moduleInstanceId>ImportObservations</moduleInstanceId>
            <valueType>scalar</valueType>
            <parameterId>Q.obs</parameterId>
            <locationId>RiverGauge_01</locationId>
            <timeSeriesType>external historical</timeSeriesType>
            <timeStep unit="hour" multiplier="1"/>
            <readWriteMode>read only</readWriteMode>
          </timeSeriesSet>
        </inputVariable>
        <maxGapLength>6</maxGapLength>
        <outputVariable>
          <timeSeriesSet>
            <moduleInstanceId>PreProcessObservations</moduleInstanceId>
            <valueType>scalar</valueType>
            <parameterId>Q.obs</parameterId>
            <locationId>RiverGauge_01</locationId>
            <timeSeriesType>simulated historical</timeSeriesType>
            <timeStep unit="hour" multiplier="1"/>
            <readWriteMode>add originals</readWriteMode>
          </timeSeriesSet>
        </outputVariable>
      </linear>
    </interpolationSerial>
  </transformation>
</transformationModule>

This is the same example worked through in the Transformations task guide — this page is its field-level companion.

Field reference

Note

interpolationSpatial alone has 20 concrete methods — this is the biggest single function category in the whole catalogue. Most systems only ever use a handful (inverse distance and kriging for point-to-grid rainfall, Thiessen polygon for catchment averaging); skim the type names below rather than reading every table top to bottom.

Auto-generated from transformationTypes.xsd. Descriptions are the schema's own annotations.

Function <interpolationSerial>

Element	Type	Cardinality	Description
block	InterpolationSerialBlockComplexType	required	Fills gaps in a time series. Each gap is filled with data values that are equal to the last data value before the gap.
default	InterpolationSerialDefaultComplexType	required	Fills gaps in a time series with a default value
directionLinear	InterpolationSerialDirectionLinearComplexType	required	Fills gaps in a time series that contains direction data values (e.g. wind direction), using linear interpolation. The direction values are interpolated over the smallest angle, e.g. halfway between directions 0 degrees and 350 degrees the interpolated value would be 355 degrees. For a gap between two directions that are completely opposite (e.g. 90 and 270 degrees) the interpolated values will be equal to the last known direction.
extrapolateBase	InterpolationSerialExtrapolateBaseComplexType	required	Extrapolates by adding future values that start at the last data value and linearly approach a given base value.
extrapolateConstant	InterpolationSerialExtrapolateConstantComplexType	required	Extrapolates by filling the gap between the start of the input time series and the first data value or by filling the gap between the last data value and the end of the input time series or by filling both of these gaps.
extrapolateExponential	InterpolationSerialExtrapolateExponentialComplexType	required	Extrapolates by adding future values that start at the last data value and exponentially approach a given base value.
extrapolatePatternWithSmoothing	InterpolationSerialExtrapolatePatternWithSmoothingComplexType	required	Extrapolates by repeating the values in the matching period. The matching period ends at the last non-missing value in the view period. The values in the matching period are referred to as the pattern. This pattern is repeated for the length of the view period. Smoothing is applied on each repetition of the pattern by adding (part of) the difference between the first and last value of the pattern. This linearly declines to zero for the length of the smoothingPeriod. Example: matchingPeriod = 8, Pattern = [4,5,5,5,8,6,7,8], smoothingPeriod = 4 would result in [8,8,7,6,8,6,7,8]
linear	InterpolationSerialLinearComplexType	required	Fills gaps in a time series with linearly interpolated data values.
longitudinalProfileToTrack	InterpolationSerialLongitudinalProfileToTrackComplexType	required	Since 2017.02. Extracts scalar time series for a track layer from a longitudinal profile using lat, long scalar input series.
trackToGrid	InterpolationSerialTrackToGridComplexType	required	Since 2017.02. Extract grid time series from a track layer (given by scalar lat, lon and value input series).
persistenceTrend	PersistenceTrendComplexType	required	Available since 2019.01

Function <interpolationSpatial>

Element	Type	Cardinality	Description
average	InterpolationSpatialAverageComplexType	required	calculates the average for each area in the output geometry
bilinear	InterpolationSpatialBilinearComplexType	required	calculates the output value by using bilinear interpolation from a rectangular grid to any other grid, profile or scalars. Can be used to rescale or reproject a grid
closestDistance	InterpolationSpatialClosestDistanceComplexType	required	interpolates by searching the closest location
gridToPolygons	InterpolationSpatialGridToPolygonsComplexType	required	Converts a regular grid to contour polygons.
containingPolygon	InterpolationSpatialContainingPolygonComplexType	required	For each input polygon this transformation copies the value of the input polygon to all output points that are inside the input polygon. If an output point is not contained in any input polygon, then the output is a missing value.
inputAverageTimesOutputArea	InterpolationSpatialInputAverageTimesOutputAreaComplexType	required	Calculates the weighted average of input variables and multiplies the output with the output area
inverseDistance	InterpolationSpatialInverseDistanceComplexType	required	With this interpolation option a new value will be computed out of existing values of neighbouring points using the power of inverse distance procedure.
polygonRelatedLocations	InterpolationSpatialPolygonRelatedLocationsComplexType	required	A intermediate polygon and a location relation is used to find the locations in the input variable. An output location is first mapped to an intermediate polygon. A location relation is used to map the intermediate polygon to one or more locations in the input variable. An inverse distance is applied to all related locations
kriging	InterpolationSpatialKrigingComplexType	required	With this interpolation option a new value will be computed out of existing values of neighbouring points using the normal Kriging procedure.
max	InterpolationSpatialMaximumComplexType	required	calculates the maximum for each area in the output geometry
min	InterpolationSpatialMinimumComplexType	required	calculates the minimum for each area in the output geometry
sum	InterpolationSpatialSumComplexType	required	calculates the sum for each area in the output geometry
count	InterpolationSpatialCountComplexType	required	Counts the number of stations/cell with a non missing value for each area in the output geometry. Optionally it is possible to skip cells/stations outside a specified value range
percentile	InterpolationSpatialPercentileComplexType	required	Count the percentile for stations/cell with a non missing value for each area in the output geometry. Optionally it is possible to skip cells/stations outside a specified value range
thiessenPolygon	InterpolationSpatialThiessenPolygonComplexType	required	First creates a Thiessen net from the input locations, then averages this over the region inside a polygon.
triangulation	InterpolationSpatialTriangulationComplexType	required	Renka and Cline triangulation.
verticalProfileClosestDistance	InterpolationSpatialVerticalProfileClosestDistanceComplexType	required	Converts 2d grids to vertical profiles. Input: one or more horizontal 2D grid time series (layers), that together form one 3D grid time series. Output: one or more vertical profile time series. For each output vertical profile time series the x,y coordinates of its configured location are used to slice the input 3D grid time series to create a vertical profile. For each output x,y coordinate the corresponding values in the input grids are found using closestDistance interpolation within the specified searchRadius (optional). The z-coordinates of the values in the output vertical profiles are the same as the z-coordinates of the input grid layers.
weighted	InterpolationSpatialWeightedComplexType	required	Calculates the weighted average of the input values. The weights are re-scaled so that the total weight becomes 1. If for a given time an input variable has a missing value, then for that time that input variable is ignored and the weights of the other input variables are re-scaled so that the total weight becomes 1.
linearChainage	InterpolationSpatialLinearChainageComplexType	required	With this method you can copy (a part of) a longitudinal profile to another profile also when the destination profile contains more or less points. For points that are not available in the input profile a linear chainage interpolation is used between the two closest point in the input profile that are available.
snapTrackToLocations	InterpolationSpatialSnapTrackToLocationsComplexType	required	Converts a track to multiple scalar time series. A maximum snap distance can be configured. The closest track point within a time step of the output time series is used.
riemannBoundary	InterpolationSpatialRiemannBoundaryComplexType	required	Since 2017.02. Performs the Riemann boundary calculation to convert scalar time series on coarse grid locations to scalar time series on boundary locations of a fine grid.

Function <altitude>

Element	Type	Cardinality	Description
elevationLapse	AltitudeElevationLapseComplexType	required	Calculates the temperature at the output location, using the temperature at the input location, the difference in elevation between the input and output location and a temperature lapse rate. This transformation uses the following equation. outputTemperature = inputTemperature + (inputElevation - outputElevation) * temperatureLapseRate / 100. Here the temperatureLapseRate is in degrees per 100 meters of elevation (typically 0.6 degrees Celcius per 100 meters).
zeroDegreeAltitude	AltitudeZeroDegreeAltitudeComplexType	required	Calculates the altitude where the temperature is zero degrees. Assumes that the temperature is lower at higher altitude. Uses the heights defined for the locations in the input time series.
removeDryCells	RemoveDryCellsComplexType	required	Since 2017.01 Replace values with NaN where water level is not higher that Z

Function <rotation>

Element	Type	Cardinality	Description
uvVectorsFromRotatedPoleToWgs1984	RotationUVVectorsFromRotatedPoleToWgs1984ComplexType	required	Transformation to rotate u,v vectors (velocity data) to another coordinate system. This transforms each vector's u,v components in a rotated pole geoDatum to the corresponding u,v components in the Wgs1984 geoDatum (the vector itself is not changed). The input and output time series should have the same rotated pole geometry as grid definition (which is defined in the grids.xml configuration file).

Function <multipleLocationAttributes>

Element	Type	Cardinality	Description
multipleIinearRegression	MultipleLinearRegressionComplexType	required	Since 2019.01 Calculate an output value by using multiple linear regression. The factors and constant are provided by location attributes
multipleVariateThresholds	MultiVariateThresholdsComplexType	required	Since 2019.01 Calculate the threshold level by defining threshold boundaries by using location attributes
inputLocationSetsBasedMultivariateThresholds	InputLocationSetsBasedMultivariateThresholdsComplexType	required	Since 2019.02 Calculate the threshold level by defining threshold lower boundaries based on location attributes of input locations within location sets
multipleOutputLocationThresholds	MultipleOutputLocationThresholdsComplexType	required	Since 2023.01 Write a configured value to the output time series if any of the input time series has a treshold crossed for the output location

InterpolationSerialBlockComplexType

Fills gaps in a time series with the last value before the start of the gap

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable.
maxGapLength	positiveIntegerAttributeType	optional	Optional maximum length of gap in number of time steps. Gaps equal to or smaller than maxGapLength will be filled with interpolated values. Gaps larger than maxGapLength will not be filled. If maxGapLength is not defined, then all gaps will be filled with interpolated values.
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
outputComment	nonEmptyStringType	optional	Since 2015.01. Optional (optional since stable build 2015.01). If specified, this comment will be put in the output time series for the time steps for which this relation is used to determine the output value.

InterpolationSerialDefaultComplexType

Fills gaps in a time series with linearly interpolated data values.

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable.
maxGapLength	positiveIntegerAttributeType	optional	Optional maximum length of gap in number of time steps. Gaps equal to or smaller than maxGapLength will be filled with interpolated values. Gaps larger than maxGapLength will not be filled. If maxGapLength is not defined, then all gaps will be filled with interpolated values.
extrapolateDirection	extrapolateDirectionEnumStringType	optional	One of: none, start, end, both
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
outputComment	nonEmptyStringType	optional	Optional (optional since stable build 2015.01). If specified, this comment will be put in the output time series for the time steps for which this relation is used to determine the output value.
defaultValue	floatStringType	required	Optional default value. If not defined, then uses 0 by default.
defaultValueFunction	string	required	Optional location dependent default value function that contains location attribute ids, e.g. @DEFAULT_VALUE@. If an attribute is missing for a location, then the default value will be 0 by default for that location.

InterpolationSerialDirectionLinearComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable.
directionRange	InterpolationSerialDirectionLinearDirectionRangeComplexType	required	The range of the values in the input and output time series. For degrees this range could be e.g. 0 to 360 or e.g. -180 to 180. For radians this range could be e.g. 0 to 2*PI. Input values outside the specified range will be handled like missing values (gaps).
maxGapLength	positiveIntegerAttributeType	optional	Optional maximum length of gap in number of time steps. Gaps equal to or smaller than maxGapLength will be filled with interpolated values. Gaps larger than maxGapLength will not be filled. If maxGapLength is not defined, then all gaps will be filled with interpolated values.
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
outputComment	nonEmptyStringType	optional	Since 2015.01. Optional (optional since stable build 2015.01). If specified, this comment will be put in the output time series for the time steps for which this relation is used to determine the output value.

InterpolationSerialExtrapolateBaseComplexType

Extrapolates by adding future values that start at the last data value and linearly approach a given base value.

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable.
maxGapLength	positiveInteger	optional	Optional maximum length of gap in number of time steps. Gaps equal to or smaller than maxGapLength will be filled with interpolated values. Gaps larger than maxGapLength will not be filled. If maxGapLength is not defined, then all gaps will be filled with interpolated values.
baseValue	float	required
window	TimeSpanComplexType	required
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
outputComment	nonEmptyStringType	optional	Since 2015.01. Optional (optional since stable build 2015.01). If specified, this comment will be put in the output time series for the time steps for which this relation is used to determine the output value.

InterpolationSerialExtrapolateConstantComplexType

Extrapolates by filling the gap between the start of the input time series and the first data value or by filling the gap between the last data value and the end of the input time series or by filling both of these gaps.

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable.
extrapolateDirection	interpolationSerialExtrapolateConstantDirectionEnumStringType	required	If direction is start, then fills only the gap between the start of the input time series and the first data value, with values that are equal to the first data value. If direction is end, then fills only the gap between the last data value and the end of the input time series, with values that are equal to the last data value. If direction is both, then fills both of these gaps. One of: start, end, both
maxGapLength	positiveIntegerAttributeType	optional	Optional maximum length of the gap at the start or end of the time series, in number of time steps. If the gap is larger than maxGapLength, then it will not be filled. If maxGapLength is not defined, then the gap will always be filled.
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
outputComment	nonEmptyStringType	optional	Since 2015.01. Optional (optional since stable build 2015.01). If specified, this comment will be put in the output time series for the time steps for which this relation is used to determine the output value.

InterpolationSerialExtrapolateExponentialComplexType

Extrapolates by filling the gap between the start of the input time series and the first data value or by filling the gap between the last data value and the end of the input time series or by filling both of these gaps.

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable.
extrapolateDirection	interpolationSerialExtrapolateConstantDirectionEnumStringType	required	If direction is start, then fills only the gap between the start of the input time series and the first data value, with values that are equal to the first data value. If direction is end, then fills only the gap between the last data value and the end of the input time series, with values that are equal to the last data value. If direction is both, then fills both of these gaps. One of: start, end, both
baseValue	float	required
recessionConstant	recessionConstantSimpleType	required
maxGapLength	positiveIntegerAttributeType	optional	Optional maximum length of gap in number of time steps. Gaps equal to or smaller than maxGapLength will be filled with interpolated values. Gaps larger than maxGapLength will not be filled. If maxGapLength is not defined, then all gaps will be filled with interpolated values.
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
outputComment	nonEmptyStringType	optional	Since 2015.01. Optional (optional since stable build 2015.01). If specified, this comment will be put in the output time series for the time steps for which this relation is used to determine the output value.

InterpolationSerialExtrapolatePatternWithSmoothingComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable.
matchingPeriod	TimeSpanComplexType	required	Period leading up to the last non-missing value. The values in the period are used for the pattern that is repeated.
smoothingPeriod	TimeSpanComplexType	required	The length over which the smoothing is applied. In general, this period should be shorter then the matchingPeriod.
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
outputComment	nonEmptyStringType	optional	Since 2015.01. Optional (optional since stable build 2015.01). If specified, this comment will be put in the output time series for the time steps for which this relation is used to determine the output value.

InterpolationSerialLinearComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable.
maxGapLength	positiveIntegerAttributeType	optional	Optional maximum length of gap in number of time steps. Gaps equal to or smaller than maxGapLength will be filled with interpolated values. Gaps larger than maxGapLength will not be filled. If maxGapLength is not defined, then all gaps will be filled with interpolated values, however if the interpolateMissingGridCells option is enabled, a default value of 1 is applied to prevent the system from running out of memory on large time series.
interpolateMissingGridCells	boolean	optional	For a timeseries of grid coverages, this option will allow missing grid cells in each coverage to be interpolated. (default is false)
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
outputComment	nonEmptyStringType	optional	Since 2015.01. Optional (optional since stable build 2015.01). If specified, this comment will be put in the output time series for the time steps for which this relation is used to determine the output value.
outputCustomFlagSourceId	idStringType	optional	Since 2015.02. Optional. If specified, the customFlagSource will be put in the output time series for the time steps for which this relation is used.

InterpolationSerialLongitudinalProfileToTrackComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputLongitudinalProfile	InputVariableComplexType	required	Input variable with single longitudinal profile time series.
inputTrackX	InputVariableComplexType	required	Input variable with single scalar time series for the x coordinate
inputTrackY	InputVariableComplexType	required	Input variable with single scalar time series for the y coordinate
maxDistance	positiveDoubleStringType	optional	The maximum distance (in meter) allowed between points, if no longitudinal profile point is close enough, the output will be NaN.
minMissingStepsForRecalibration	nonNegativeIntegerStringType	optional	If (one of) the track coordinates is missing (NaN) for at least this number of points in a row, the next non-missing point is compared with all of the longitudinal profile points to find the closest distance, instead of just comparing with the previously closest longitudinal profile point and its direct neighbours. By default this value is set to 1. Note that setting this value to 0 will cause FEWS to always compare the track point with all longitudinal profile points.
outputVariable	OutputVariableComplexType	required	Output scalar time series, which will contain the values for the track.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSerialTrackToGridComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputTrackValue	InputVariableComplexType	required	Input variable with single scalar time series containing the track value.
inputTrackX	InputVariableComplexType	required	Input variable with single scalar time series for the x coordinate of the track (WGS 1984).
inputTrackY	InputVariableComplexType	required	Input variable with single scalar time series for the y coordinate of the track (WGS 1984).
minTrackValues	positiveIntegerStringType	optional	The minimum number of track values that must be available for a grid cell and time step (BEFORE the percentileRange is applied if configured) for the result value to be non-missing. Default 1.
percentileRange	percentileRangeComplexType	optional	From all track points that correspond to a certain grid cell and time step only this percentile range of values will be used to obtain the grid value.
statisticalFunction	InterpolationSerialTrackToGridStatisticalFunctionType	required	The statistical function that will be applied to obtain a single value for the grid cell from all track values found for that grid cell. One of: min, max
outputVariable	OutputVariableComplexType	required	Output grid time series.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

PersistenceTrendComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputTimeSeries	InputVariableComplexType	required	a
outputTimeSeries	OutputVariableComplexType	required	a
outputHistoricTimeSeries	OutputVariableComplexType	optional	a
availableObservedValues	float	required
consecutiveObservedValues	boolean	required
window	TimeSpanComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialAverageComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
minimumValue	float	optional	Minimum value allowed, if not used then -999.99
maximumValue	float	optional	Minimum value allowed, if not used then -999.99
inputVariable	InputVariableComplexType	required
outputVariable	OutputVariableComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
validationRule	ValidationRuleComplexType	optional · repeats	Since 2013.01. FEWS-8586

InterpolationSpatialBilinearComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input regular grid, Input variable should be different than output variable.
outputGeometry	OutputGeometryComplexType	optional	Since 2017.02. Output grid which overrules the configured grid in the output variable
overrulingXAttribute	string	optional	Since 2020.01. Id of the attribute which is to be used as the overruling x-coordinate for each location for both the input and output variables. When a location does not have this attribute, or does not have a value for this attribute, its x-coordinate is used as usual.
overrulingYAttribute	string	optional	Since 2020.01. Id of the attribute which is to be used as the overruling y-coordinate for each location for both the input and output variables. When a location does not have this attribute, or does not have a value for this attribute, its y-coordinate is used as usual.
outputVariable	OutputVariableComplexType	required	Output grid, longitudinal profile or scalars. Input variable should be different than output variable
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialClosestDistanceComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required · repeats	One or more input variables as input for the interpolation function
minimumValue	float	optional	Minimum value allowed, if not used then -999.99
maximumValue	float	optional	Maximum value allowed, if not used then -999.99
searchRadius	doubleStringType	optional	meters. Default = Infinity. BEFORE 2012.02 this value was interpreted as kilometers by accident
distanceGeoDatum	geoDatumStringType	optional	Geo datum used to calculate the distances in meters between the points. To calculate distances efficiently and to pre-sort the input points in a grid the earth's curved surface should be transformed to a flat two-dimensional surface. When the input geometry is not in meters calculation of distances will be very slow and a search all is required when there is no exact match. When there is no region/country specific coordinate system available choose a utm zone that best fits with your output region. http://en.wikipedia.org/wiki/File:Utm-zones.jpg. eg. UTM55S for Victoria state in Australia. Only use zone number and N for northern hemisphere and S for southern hemisphere.
overrulingXAttribute	string	optional	Since 2017.02. Id of the attribute which is to be used as the overruling x-coordinate for each location for both the input and output variables. When a location does not have this attribute, or does not have a value for this attribute, its x-coordinate is used as ususal.
overrulingYAttribute	string	optional	Since 2017.02. Id of the attribute which is to be used as the overruling y-coordinate for each location for both the input and output variables. When a location does not have this attribute, or does not have a value for this attribute, its y-coordinate is used as ususal.
outputVariable	OutputVariableComplexType	required	output variable
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
validationRule	ValidationRuleComplexType	optional · repeats	Since 2013.01. FEWS-8586

InterpolationSpatialGridToPolygonsComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable with single rectangular grid.
polygonValue	float	required · repeats	For every value a (multi-part) polygon is created.The values of the grid cells inside this polygon are equal or larger than the specified value. They are also smaller than the next polygonValue when configured
areaOfInterestLocationId	idStringType	optional	Only generate polygons inside the area/polygon/catchment of the specified location
minimumPolygonArea	nonNegativeDouble	optional	Since 2024.01. Optional. Minimum area (in square meters) of features in the output polygon. Polygons, or holes in polygons, that are smaller than the configured area are removed from the output polygon.
outputVariable	OutputVariableComplexType	required	Output variable with polygon time series
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
localDatumCoverageTileArchiveFile	string	required · repeats	A FULL ABSOLUTE path to file (.cta). Multiple files can be specified. When the file is uploaded by the config manager split the cta file into multiple cta files of about 10MB. This can be specified when converting an asc grid to cta. The grid values are converted to local datums at pixel level using the DEM layer before calculating the polygons
zoomLevel	zoomLevelStringType	required	The zoom level that should be used. The higher the zoom level memory the higher the memory that is required. 100km by 100km for the highest zoom level requires 20 GB of memory. For every higher zoom level the required memory is four times less. See https://wiki.openstreetmap.org/wiki/Zoom_levels

InterpolationSpatialContainingPolygonComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable with data for polygons.
outputVariable	OutputVariableComplexType	required	Output variable to store data for point locations.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialInputAverageTimesOutputAreaComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Define input variables with a weight for each input variable.
minimumValue	float	optional	Minimum value allowed, if not used then -999.99
maximumValue	float	optional	Maximum value allowed, if not used then -999.99
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialInverseDistanceComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required · repeats	One or more input variables
outputGeometry	OutputGeometryComplexType	optional	Since 2017.02. Output grid which overrules the configured grid in the output variable
minimumValue	float	optional	Minimum value allowed, if not used then -999.99
maximumValue	float	optional	Maximum value allowed, if not used then -999.99
searchRadius	doubleStringType	required	Meters. Default = Infinity. Specifying the search radius increases the performance since it limits the candidate points to be evaluated. Otherwise all possible points are considered. The searchRadius criterion is applied before the normalization with xMultiplier, yMultiplier and zMultiplier. BEFORE 2012.02 this value was interpreted as kilometers for WGS 84 by accident
distanceGeoDatum	geoDatumStringType	optional	Geo Datum used to calculate the distances in meters between the points. When the input geometry is not in meters calculation of distances will be very slow and a search all is required when there is no exact match
inverseDistancePower	float	required
xMultiplier	double	optional	since 2012.02.
yMultiplier	double	optional	since 2012.02.
zMultiplier	double	optional	since 2012.02.
excludePointOfOrigin	boolean	optional	Optional element allows to exclude the point of origin in the inverse-distance spatial interpolation transformation. Available since 2018.02
outputVariable	OutputVariableComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
includeMissingValues	boolean	required	If true, then a missing value in one of the input variables for a given time step will result in a missing value in the output variable. If false, then if a value in one of the input variables is missing for a given time step, then only the remaining input variables will be used and the weights will be rescaled to unity.
validationRule	ValidationRuleComplexType	optional · repeats	Since 2013.01. FEWS-8586
numberOfPoints	int	required	Number of points used in interpolation computation. When distance function is used the closest number of points is used. Default is 8 points.
numberOfBackupPoints	int	optional	since 2012.02. Extra stations that are further away and are used in case of one or more missings in the base points. For every missing support point an other next nearest backup point is used
numberOfPointsPerQuadrant	int	required	since 2012.02. Number of points used in interpolation computation. When distance function is used the closest number of points is used..
numberOfBackupPointsPerQuadrant	int	optional	since 2012.02. Extra stations that are further away and are used in case of one or more missings in the base points. For every missing support point an other next nearest backup point is used

InterpolationSpatialPolygonRelatedLocationsComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required · repeats	Scalar
polygonLocationSetId	idStringType	required	Polygons to find the input locations. Input locations are the related locations of the polygon that contains the output location
polygonLocationRelationId	idStringType	required	Location relation to find the input locations. Input locations are the related locations of the polygon that contains the output location. The relation is used to find the polygon id to the location ids in the input variable
outputVariable	OutputVariableComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
includeMissingValues	boolean	required	If true, then a missing value in one of the input variables for a given time step will result in a missing value in the output variable. If false, then if a value in one of the input variables is missing for a given time step, then only the remaining input variables will be used and the weights will be rescaled to unity.
validationRule	ValidationRuleComplexType	optional · repeats	Since 2013.01. FEWS-8586

InterpolationSpatialKrigingComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable
interpolationType	interpolationEnumStringType	required	Option to choose between the filling of missing values or the generation of new series. One of: seriesfilling, seriesgeneration
valueOption	valuesEnumStringType	required	One of: normal, residuals, splitwithelevation
variogram	VariogramComplexType	required	Variogram information
numberOfPoints	int	optional	Number of points used in interpolation computation. When distance function is used the closest number of points is used. If not specified then 8 points are used. Default is 8 points.
regressionElevation	float	optional	Elevation above which regression is required
minimumValue	float	optional	Minimum value allowed, if not used then -999.99
distanceParameters	DistanceGeographicComplexType	optional	Coefficients G1 to G4 of function DistanceGeographic. Defaults to (1,1,0,0)
debug	DebugComplexType	optional	Debug information for interpolation model
outputVariable	OutputVariableComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialMaximumComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required
outputVariable	OutputVariableComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
validationRule	ValidationRuleComplexType	optional · repeats	Since 2013.01. FEWS-8586

InterpolationSpatialMinimumComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required
outputVariable	OutputVariableComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
validationRule	ValidationRuleComplexType	optional · repeats	Since 2013.01. FEWS-8586

InterpolationSpatialSumComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	One or more input variables
minimumValue	float	optional	Minimum value allowed, if not used then -999.99
maximumValue	float	optional	Minimum value allowed, if not used then -999.99
outputVariable	OutputVariableComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
validationRule	ValidationRuleComplexType	optional · repeats	Since 2013.01. FEWS-8586

InterpolationSpatialCountComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	One or more input variables
minimumInputValue	float	optional	Skip all input values that are below this value
maximumInputValue	float	optional	Skip all input values that are above this value
outputVariable	OutputVariableComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialPercentileComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	One or more input variables
percentile	percentageType	required	between 1 and 99
minimumInputValue	float	optional	Skip all input values that are below this value
maximumInputValue	float	optional	Skip all input values that are above this value
outputVariable	OutputVariableComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialThiessenPolygonComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable with data for point locations.
distanceGeoDatum	geoDatumStringType	optional	Geo datum used to calculate the distances in meters between the points. To calculate distances efficiently and to pre-sort the input points in a grid the earth's curved surface should be transformed to a flat two-dimensional surface. When the input geometry is not in meters calculation of distances will be very slow and a search all is required when there is no exact match. When there is no region/country specific coordinate system available choose a utm zone that best fits with your output region. http://en.wikipedia.org/wiki/File:Utm-zones.jpg. eg. UTM55S for Victoria state in Australia. Only use zone number and N for northern hemisphere and S for southern hemisphere
outputVariable	OutputVariableComplexType	required	Output variable to store data for polygons.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialTriangulationComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable
interpolationType	interpolationEnumStringType	required	Option to choose between the filling of missing values or the generation of new series. One of: seriesfilling, seriesgeneration
numberOfPoints	int	required	Number of points used in interpolation computation. When distance function is used the closest number of points is used. If not specified then 8 points are used. Default is 8 points.
minimumValue	float	optional	Minimum value allowed, if not used then -999.99
debug	DebugComplexType	optional	Debug information for interpolation model
extrapolationOption	spatialExtrapolationOptionEnumStringType	required	One of: disabled, use splines, nearest neighbour
coordinateScalingFactor	float	required	The coordinates are multiplied by the scaling factor before they are passed to a interpolation routine. This is especially useful for for the renka and cline triangulation in combination with splines. To calculate the splines correctly the z values should have the same scale as the x, y values.
outputVariable	OutputVariableComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialVerticalProfileClosestDistanceComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	One or more horizontal 2D grid time series (layers) (in a locationSet), that together form one 3D grid time series. All input grid time series must have the same grid geometry.
searchRadius	doubleStringType	optional	Optional search radius in meters for closest distance interpolation. Default is infinity.
distanceGeoDatum	geoDatumStringType	optional	Geo datum used to calculate the distances in meters between the points. To calculate distances efficiently and to pre-sort the input points in a grid the earth's curved surface should be transformed to a flat two-dimensional surface. When the input geometry is not in meters calculation of distances will be very slow and a search all is required when there is no exact match. When there is no region/country specific coordinate system available choose a utm zone that best fits with your output region. http://en.wikipedia.org/wiki/File:Utm-zones.jpg. eg. UTM55S for Victoria state in Australia. Only use zone number and N for northern hemisphere and S for southern hemisphere.
outputVariable	OutputVariableComplexType	required	One or more vertical profile time series (in a locationSet). The output must have a single domain parameter that indicates the height along the vertical profile.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialWeightedComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
minInputValuesRequired	positiveInteger	optional	This is the minimum number of input variables that should have a non-missing value for the calculation. If for a given time the number of input variables that have a non-missing value is less than the configured minimum, then for that time the output value will be a missing value. This can be used e.g. to avoid getting output values of calculations for which very few input variables are available, because such calculations would be inaccurate. If not specified, then this will be set to 1.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
weightedInputVariable	InterpolationSpatialWeightedInputVariableComplexType	required · repeats	One or more input variables with weights. Must be used in combination with an outputVariable element (not an attributedOutputVariable element).
inputVariable	InputVariableComplexType	required	Since 2017.02. A single input variable containing all time series that may be used to obtain the weighted average for an output location. Must be used in combination with an attributedOutputVariable element.
outputVariable	OutputVariableComplexType	required	Weighted average. Must be used in combination with one or more weightedInputVariable elements.
attributedOutputVariable	InterpolationSpatialAttributedOutputVariableComplexType	required	Since 2017.02. An output variable containing two multi-value attributed containing the locationIds and weights for the inputs to be used. Must be used in combination with a single inputVariable element (not a weightedInputVariable element).

InterpolationSpatialLinearChainageComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input profile.
outputVariable	OutputVariableComplexType	required	Output profile
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialSnapTrackToLocationsComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
x	InputVariableComplexType	required	Input variable with single scalar time series for the x coordinate
y	InputVariableComplexType	required	Input variable with single scalar time series for the y coordinate
value	InputVariableComplexType	required	Input variable with single scalar time series for the values.
geoDatum	geoDatumStringType	required	geo datum of the x and y coordinate in the time series
maximumSnapDistance	doubleStringType	required	meters, Maximum distance between output location and track point to allow snap. BEFORE 2012.02 this value was interpreted as kilometers by accident
minimumTimeInterval	TimeSpanComplexType	required	Tack point closest to output point within time interval is used in output time series
outputVariable	OutputVariableComplexType	required	Output time series. Every output time series should have an unique location
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InterpolationSpatialRiemannBoundaryComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
waterHeight	InputVariableComplexType	required	The water height input variable, scalar time series for a location set consisting of locations in a coarse grid. Note that all locations named vai coarseGridLocationAttributeId (and uCoarseGridLocationAttributeId and vCoarseGridLocationAttributeId in case of a staggered grid) for the output locations, must be present in the input locations.
uSpeed	InputVariableComplexType	required	The u speed input variable, scalar time series for a location set consisting of locations in a coarse grid. Note that all locations named via coarseGridLocationAttributeId (and uCoarseGridLocationAttributeId and vCoarseGridLocationAttributeId in case of a staggered grid) for the output locations, must be present in the input locations.
vSpeed	InputVariableComplexType	required	The v speed input variable, scalar time series for a location set consisting of locations in a coarse grid. Note that all locations named via coarseGridLocationAttributeId (and uCoarseGridLocationAttributeId and vCoarseGridLocationAttributeId in case of a staggered grid) for the output locations, must be present in the input locations.
bathymetry	InputVariableComplexType	required	The bathymetry of the output locations, scalar time series for the output location set.
borderAttributeId	string	required	The id of the attribute of the output location set which contains the border (UP, DOWN, LEFT or RIGHT) of the fine grid the boundary location is located on.
angleAttributeId	string	required	The id of the attribute of the output location set which contains the angle (in degrees) to be used for the calculation.
coarseGridLocationAttributeId	string	required	The id of the attribute of the output location set which contains multiple text values representing the location ids of the input locations to be used to calculate the values for this output location.
weightAttributeId	string	required	The id of the attribute of the output location set which contains multiple number values representing the weights to be used to calculate the values for this output location.
outputVariable	OutputVariableComplexType	required	The output variable, scalar time series containing the Riemann boundary constants for a location set consisting of boundary locations of a fine grid. Note that all attributes (borderAttributeId, angleAttributeId, coarseGridLocationAttributeId, etc.), must exist for the location set of the input. Attribute files can be generated for a given coarse grid, fine grid and boundary location set via F12 -> convert -> Riemann boundary calculation constants. The output will also include a csv file which can be used to define an input location set which contains exactly those coarse grid locations needed.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
uCoarseGridLocationAttributeId	string	required	The id of the attribute of the output location set which contains multiple text values representing the location ids of the input locations to be used to calculate the u-speed values for this output location in case of a staggered coarse grid.
uWeightAttributeId	string	required	The id of the attribute of the output location set which contains multiple number values representing the weights to be used to calculate the u-speed values for this output location in case of a staggered coarse grid.
vCoarseGridLocationAttributeId	string	required	The id of the attribute of the output location set which contains multiple text values representing the location ids of the input locations to be used to calculate the v-speed values for this output location in case of a staggered coarse grid.
vWeightAttributeId	string	required	The id of the attribute of the output location set which contains multiple number values representing the weights to be used to calculate the v-speed values for this output location in case of a staggered coarse grid.

AltitudeElevationLapseComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
limitVariable	InputVariableComplexType	optional	Optional limit variable. For each time step the value of this variable is checked against the limiting ranges defined in coefficientSets to determine which coefficientSet is used for that time step. A limit variable has to be a scalar variable.
inputTemperature	InputVariableComplexType	required	Input temperature.
outputTemperature	OutputVariableComplexType	required	Output temperature.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
coefficientSet	AltitudeElevationLapseCoefficientSetComplexType	required · repeats	One or more coefficientSets that are valid for different ranges of the defined limit variable. Ranges should not overlap.
coefficientSetId	idStringType	required	Identifier of a coefficientSet to use. CoefficientSets are defined in a transformationCoefficientSets file in the CoefficientSetsFiles directory.
coefficientSetFile	fileStringType	required	Name of the file that contains the coefficientSet to use. This name should not include the file extension. CoefficientSets are defined in a transformationCoefficientSets file in the CoefficientSetsFiles directory.

AltitudeZeroDegreeAltitudeComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
limitVariable	InputVariableComplexType	optional	Optional limit variable. For each time step the value of this variable is checked against the limiting ranges defined in coefficientSets to determine which coefficientSet is used for that time step. A limit variable has to be a scalar variable.
temperature	InputVariableComplexType	required	Input variable.
altitude	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
coefficientSet	AltitudeZeroDegreeAltitudeCoefficientSetComplexType	required · repeats	One or more coefficientSets that are valid for different ranges of the defined limit variable. Ranges should not overlap.
coefficientSetId	idStringType	required	Identifier of a coefficientSet to use. CoefficientSets are defined in a transformationCoefficientSets file in the CoefficientSetsFiles directory.
coefficientSetFile	fileStringType	required	Name of the file that contains the coefficientSet to use. This name should not include the file extension. CoefficientSets are defined in a transformationCoefficientSets file in the CoefficientSetsFiles directory.

RemoveDryCellsComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required
minimumLocalWaterLevel	double	optional	Optional element to define the minimum water level in meters at a cell to not be considered dry. When the value at a cell is lower than the elevation (Z) + the minimum water level, it will be set to NaN in the output.
outputVariable	OutputVariableComplexType	required
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

RotationUVVectorsFromRotatedPoleToWgs1984ComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputU	InputVariableComplexType	required	Input variable that contains the u component values of the velocity vectors in the rotated pole geoDatum.
inputV	InputVariableComplexType	required	Input variable that contains the v component values of the velocity vectors in the rotated pole geoDatum.
outputU	OutputVariableComplexType	required	Output variable to store the u component values of the velocity vectors in the Wgs1984 geoDatum.
outputV	OutputVariableComplexType	required	Output variable to store the v component values of the velocity vectors in the Wgs1984 geoDatum.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

MultipleLinearRegressionComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
constantAttributeId	idStringType	required	The attribute which defines the constant value
variableAttributeId	idStringType	required	The attribute which defines the variable
inputLocationAttributeId	idStringType	required	The attribute which defines the input location
factorAttributeId	idStringType	required	The attribute which defines the factor
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

MultiVariateThresholdsComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
ruleAttributeId	idStringType	required	The attribute id which defines the rule id
directionalParameters	DirectionalParametersComplexType	optional	The variables for which the values are always between 0-360
inputVariableAttributeId	idStringType	required	The attribute id which defines the variable
inputLocationAttributeId	idStringType	required	The attribute id which defines the input location
lowerBoundAttributeId	idStringType	required	The attribute id which defines the lower bound
lowerBoundInclusiveAttributeId	idStringType	optional	The attribute id which defines if the lower bound is inclusive or not. If this attribute is not defined the lower bound will not be inclusive
upperBoundAttributeId	idStringType	required	The attribute id which defines if the upper bound
upperBoundInclusiveAttributeId	idStringType	optional	The attribute which defines if the upper bound is inclusive or not. If this attribute is not defined the upper bound is inclusive
ruleOutcomeAttributeId	idStringType	required	The attribute which defines the value which will be written to the output time series
ruleOutcomeValueToSelect	ruleOutcomeValueToSelectEnumStringType	optional	When multiple rules apply, this element specifies which the preference based on the value of the rule outcome. By default the rule with highest outcome has preference One of: lowest, highest
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

InputLocationSetsBasedMultivariateThresholdsComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
ruleAttributeId	idStringType	required	The attribute id which defines the rule id
inputVariableAttributeId	idStringType	required	The attribute id which defines the variable of the transformation
inputLocationSetIdAttributeId	idStringType	required	The attribute id which defines the input location set containing the locations from the input variable that need to be used.
numberOfTimeSeriesWithinBoundariesAttributeId	idStringType	optional	The attribute which defines the number of time series within the input time series set that need to be within boundaries. If this attribute is not defined all time series need to be within boundaries for this rule to apply
ruleOutcomeAttributeId	idStringType	required	The attribute which defines the value which will be written to the output time series
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
lowerBoundAttributeId	idStringType	required	The attribute id which defines the lower bound which needs to be crossed in order for the rule to apply
inputLocationLowerBoundReferringAttributeId	idStringType	required	The id of an attribute which value is another attribute id which will be used to look up the input location specific lower bound value

MultipleOutputLocationThresholdsComplexType

Element	Type	Cardinality	Description
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.
period	TransformationRunPeriodComplexType	optional	This element can be used to configure the run period of the transformation.
trimOutput	trimOutputEnumStringType	optional	When true missing values at the start and end of the output will be removed before writing the data to the database. This can prevent existing values to be overwritten with missings. One of: true, false, startOnly, endOnly
inputVariable	InputVariableComplexType	required	Input variable.
thresholdValueAttributeId	idStringType	required	The attribute which defines the threshold value
crossingDirection	crossingDirectionEnumStringType	optional	The direction of crossings that should be taken into account, default is up One of: up, down, above, below
filterAttribute	FilterAttributeComplexType	required	The attribute id and the corresponding value that should be included
outputValue	float	required	The value which will be written to the output when a threshold is crossed
outputLocationAttributeId	idStringType	required	The attribute which defines for which output location a value should be written
outputVariable	OutputVariableComplexType	required	Output variable.
className	nameStringType	optional	Optional element to define the name of the class that should be executed to perform this transformation. Normally this element can be left out of the xml configuration, and the default class name will be used. This default class name is defined as the default value for this element in the xsd schema for this transformation. Only use this element if you need to use a custom class that is present in the program code.

TransformationRunPeriodComplexType

Element	Type	Cardinality	Description
relativePeriod	RelativePeriodComplexType	required
cardinalTimeStep	TimeStepComplexType	required	Aligns the start and end time of the run period of the transformation with this time step.
extendStart	boolean	required	Determines whether the start of the run period of the transformation should be extended or cropped to match the cardinal time step
extendEnd	boolean	required	Determines whether the end of the run period of the transformation should be extended or cropped to match the cardinal time step
startMonthDay	monthDayType	required
endMonthDay	monthDayType	required

InputVariableComplexType

Choose between a reference to a variable or an embedded definition of a variable.

Element	Type	Cardinality	Description
variableId	idStringType	required	Identifier of a variable to use.
locationId	idStringType	optional	If the specified variable contains multiple locations, then specify the location to use here.
timeSeriesSet	TimeSeriesSetComplexType	required	A time series set that can be used as input or as output for a transformation function.
convertDatum	boolean	optional	If true, then this time series is converted from local to ordnance datum level before a transformation and back to local datum level after the transformation. Default is false.
checkMissing	boolean	optional	Option to check this timeseries for missing values. This option works in combination with the Parameter flag 'allowMissing', which can be set for a parameter in the parameters.xml configuration file. If for a given parameter allowMissing is false and checkMissing is true, then the transformation throws an exception when there are missing values for this parameter. When omitted defaults to 'false'. For grid data this option only checks whether the entire grid contains missing values or not, i.e. individual cells can still have missing values as long as there are other cells with non-missing values in the grid for the same time step.

OutputVariableComplexType

Choose between a reference to a variable or an embedded definition of a variable.

Element	Type	Cardinality	Description
variableId	idStringType	required	Identifier of a variable to use.
locationId	idStringType	optional	If the specified variable contains multiple locations, then specify the location to use here.
timeSeriesSet	TimeSeriesSetComplexType	required	A time series set that can be used as input or as output for a transformation function.
convertDatum	boolean	optional	If true, then this time series is converted from local to ordnance datum level before a transformation and back to local datum level after the transformation. Default is false.
checkMissing	boolean	optional	Option to check this timeseries for missing values. This option works in combination with the Parameter flag 'allowMissing', which can be set for a parameter in the parameters.xml configuration file. If for a given parameter allowMissing is false and checkMissing is true, then the transformation throws an exception when there are missing values for this parameter. When omitted defaults to 'false'. For grid data this option only checks whether the entire grid contains missing values or not, i.e. individual cells can still have missing values as long as there are other cells with non-missing values in the grid for the same time step.

InterpolationSerialDirectionLinearDirectionRangeComplexType

Element	Type	Cardinality	Description
lowerLimit	float	required
upperLimit	float	required

TimeSpanComplexType

Attributes

Attribute	Use	Notes
unit	required
divider	optional
multiplier	optional

percentileRangeComplexType

Element	Type	Cardinality	Description
min	percentageType	required	This percentage of the lowest values will be removed. Should be smaller than max, set to 0 to remove none of the lowest values.
max	percentageType	required	(100% - this percentage) of the highest values will be removed. Should be greater than min, set to 100 to remove none of the largest values.

ValidationRuleComplexType

Element	Type	Cardinality	Description
minimumInputValuesCount	intStringAttributeType	optional	Only works for non-equidistant data. When there are less than the minimum number of input values available the validation rule is not considered valid.
inputDoubtfulPercentage	floatStringAttributeType	optional
inputMissingPercentage	floatStringAttributeType	optional
outputValueFlag	validationRuleFlagEnumStringType	required	One of: missing, doubtful, reliable
outputCustomFlagSourceId	idStringType	optional

OutputGeometryComplexType

Element	Type	Cardinality	Description
xMin	doubleStringType	required	X coordinate of the upper left point of the grid
yMin	doubleStringType	required	Y coordinate of the upper left point of the grid
xMax	doubleStringType	required	X coordinate of the lower right point of the grid
yMax	doubleStringType	required	Y coordinate of the lower right point of the grid
xCellSize	doubleStringType	required	Width of the grid cells
yCellSize	doubleStringType	required	Height of the grid cells

VariogramComplexType

Variogram options

Element	Type	Cardinality	Description
type	variogramEnumStringType	required	Type of variogram One of: spherical, exponential, gaussian, power, linear
nugget	float	required	Nugget of variogram (C0)
range	float	required	Range of variogram in meters (a)
slope	float	required	Slope of variogram (C1)
sill	float	required	Sill of variogram to be used in case of all variograms except Linear (C1)

DistanceGeographicComplexType

The coefficients G1 to G4 of function DistanceGeographic. Defaults (1,1,0,0)

Element	Type	Cardinality	Description
g1	float	required
g2	float	required
g3	float	required
g4	float	required

DebugComplexType

Element	Type	Cardinality	Description
level	int	required	Number for setting the level of debug generation, 0 = no debug information, 1 = some information, 2 ..etc = more information
file	fileStringType	required	Debug file

InterpolationSpatialWeightedInputVariableComplexType

Element	Type	Cardinality	Description
inputVariable	InputVariableComplexType	required	Input variable.
weight	double	required	Weight corresponding to this variable.

InterpolationSpatialAttributedOutputVariableComplexType

Element	Type	Cardinality	Description
outputVariable	OutputVariableComplexType	required
locationIdAttribute	string	required	The id of the multi-value attribute containing the locationIds of the input time series to be used.
weightAttribute	string	required	The id of the multi-value attribute containing the weights to be used.

AltitudeElevationLapseCoefficientSetComplexType

Element	Type	Cardinality	Description
lowerLimit	float	optional	Optional lower limit above which these coefficients are valid. Lower limit is inclusive. If no lower limit specified, then valid for all values below upper limit.
upperLimit	float	optional	Optional upper limit below which these coefficients are valid. Upper limit is exclusive. If no upper limit specified, then valid for all values above lower limit.
temperatureLapseRate	float	required	Temperature lapse rate in degrees per 100 meters of elevation (typically 0.6 degrees Celsius per 100 meters).
inputElevation	float	optional	Optional. If present, then this number is used for the inputElevation. If not present, then the inputElevation is derived from the input location or the input grid geometry.
outputElevation	float	optional	Optional. If present, then this number is used for the outputElevation. If not present, then the outputElevation is derived from the output location.

AltitudeZeroDegreeAltitudeCoefficientSetComplexType

Element	Type	Cardinality	Description
lowerLimit	float	optional	Optional lower limit above which these coefficients are valid. Lower limit is inclusive. If no lower limit specified, then valid for all values below upper limit.
upperLimit	float	optional	Optional upper limit below which these coefficients are valid. Upper limit is exclusive. If no upper limit specified, then valid for all values above lower limit.
minAltitude	float	optional	Optional minimum altitude. If zero degrees altitude is below all input locations, then returns this minAltitude value, if present. If in this case minAltitude is not present, then returns the altitude of the lowest input location.
maxAltitude	float	optional	Optional maximum altitude. If zero degrees altitude is above all input locations, then returns this maxAltitude value, if present. If in this case maxAltitude is not present, then returns the altitude of the highest input location.

DirectionalParametersComplexType

Element	Type	Cardinality	Description
parameterId	idStringType	required · repeats	the parameter id of a directional time series

FilterAttributeComplexType

Attributes

Attribute	Use	Notes
id	optional
value	optional

RelativePeriodComplexType

Defines a moving period in time. The start and end time are relative time to a certain time.

Attributes

Attribute	Use	Notes
start	required
end	required
startOverrulable	optional	default: false. When the running module (e.g. general adaptor) has exported a state the state time is used instead of the specified start time. This option is only available during a (forecast) run.
endOverrulable	optional	default: false. When a forecast length is specified (e.g. in the manual forecast dialog) the time 0 + forecast length is used instead of the specified end time This option is only available during a (forecast) run.
unit	required

Elements

Element	Type	Cardinality	Description
description	string	optional

TimeStepComplexType

Time step, There are 5 valid combinations of attributes. id, unit+[multiplier]+[divider]+[timeZone], times+[timeZone] + monthDays+[timeZone] ([]=optional)

Attributes

Attribute	Use	Notes
id	optional	Id of the time step. You can reference time steps defined in the regionConfig/timeSteps.xml. Only specify the id attribute when referring to a predefined time step. In the regionConfig/timeSteps.xml the time steps list both the id and the attributes that define the time step
label	optional	Short name for the time step which is shown to the user when he can choose one from a list.
unit	optional
divider	optional
multiplier	optional
times	optional	Defines the time step by a list of times without dates, e.g. "10:00 23:00"
minutes	optional	Since 2017.02. Defines the time step by a list of minutes (with prefix 0 for single digits), e.g. "05 25" which results in times 0:05, 0:25, 1:05, etc.
daysOfMonth	optional	Defines the time step by a list of days of month, use "01 11 21" for a decade time step
monthDays	optional	Defines the time step by a list of dates, e.g. ""--03-01 --06-01 --09-01 --12-01" for the meteorological seasons
timeZone	optional

Elements

Element	Type	Cardinality	Description
description	string	optional	Optional description of this timeStep. This is not used and is only present for convenience.

TimeSeriesSetComplexType

Attributes

Attribute	Use	Notes
id	optional
name	optional

Elements

Element	Type	Cardinality	Description
description	string	optional
valueType	timeSeriesValueTypeStringType	required
parameterId	idStringType	required
domainParameterId	idStringType	optional · repeats	For a spectrum specify the frequency / wave length parameter. For a directional spectrum specify first the frequency parameter and secondly the directional parameter
qualifierId	idStringType	optional · repeats	Id that references an qualifier listed in the regionConfigFiles/Qualifiers.xsd
timeSeriesType	timeSeriesTypeStringType	required
timeStep	TimeStepComplexType	required
aggregationPeriod	RelativePeriodComplexType	optional	The value at a time represents the aggregated value over the aggregation period e.g when the aggregation period is -6 to 0 hour the value at 13:00 represents an aggregation (e.g. moving average) from 7:00 till 13:00 (including)
cycle	CalendarTimeSpanComplexType	optional	If cycle specified, then the data is repeated periodically with this cycle as the period length. There is original data for only one cycle. After that cycle the data will be repeated periodically. In other words, when cycle is defined, then a missing value is filled up with a value from the last available cycle before the missing value.
externalForecastSearchTimeStep	TimeStepComplexType	optional	Since 2024.01. Only time series with an external forecast time that match this time step are visible while searching
externalForecastTimeCardinalTimeStep	TimeStepComplexType	optional	When no external forecast exists in the data store younger that the specified age a new external forecast is returned with a minimum age that applies to the specified cardinal time step
qualifierAggregation	qualifierAggregationStringType	optional	When specified all the time series that have ALL the specified qualifiers are aggregated to a single time series on read. Can not be specified when this time series set is meant for writing
readWriteMode	timeSeriesReadWriteModeStringType	required	Note: this readWriteMode is only used in the TimeSeriesDisplay. Other modules ignore this readWriteMode.
synchLevel	intStringType	optional
expiryTime	CalendarTimeSpanComplexType	optional
delay	TimeShiftComplexType	optional
multiplier	floatStringType	optional
divider	floatStringType	optional
incrementer	floatStringType	optional
ensembleId	idStringType	optional	Optional field for running ensembles. Ensemble id's in a time series set will override ensemble id's defined in the workflow.
visibilityControllingFlagSourceColumnId	idStringType	optional	All values that not passed this validation step are removed on read. Set to missing for equidistant and removed for non-equidistant
onlyReliableFlagSourceColumnId	idStringType	optional	Since 2022.02. All values that passed this validation step and are reliable will be included other will be set to missing for equidistant and removed for non-equidistant. This will work as an "or" operation together with "visibilityControllingFlagSourceColumnId", so data should either have passed "visibilityControllingFlagSourceColumnId" or "onlyReliableFlagSourceColumnId".
locationRelationId	idStringType	required	Relation id to map the time series set locations to related locations. Instead of the time series set locations the related locations are used to read/write the time series.
skipLocationsWithoutRelation	boolean	optional	Since 2020.01 When true locations that do not have a related location will be skipped, when false all location must have a related location. Default is false
moduleInstanceId	idStringType	required · repeats
moduleInstanceSetId	idStringType	required	Query a single module instance in the data store that is available for this time series set
filterModuleInstanceSetId	idStringType	required	Query all module instances in the data store that are available for this time series set
locationId	idStringType	required · repeats
locationSetId	idStringType	required
chainageLocationSetId	idStringType	required	Id of location set which represents a chainage of locations. This can only be used in combination with readWriteMode readOnly
relativeViewPeriod	TimeSeriesSetRelativePeriodComplexType	optional	Period relative the time 0 of the workflow or the system time of the fews explorer
relativeForecastPeriod	TimeSeriesSetRelativePeriodComplexType	optional	Period relative to first time of a simulated or external forecast time series
ensembleMemberId	nonEmptyStringType	required · repeats	Optional field used for reading or writing one or more particular ensemble member
ensembleMemberIndex	nonNegativeIntegerStringType	required	Optional field used for reading or writing one particular ensemble member
ensembleMemberIndexRange	EnsembleMemberIndexRangeComplexType	required	Optional field used for reading or writing one particular sub set of the ensemble
relativeForecastSearchPeriod	TimeSeriesSetRelativePeriodComplexType	required	Since 2015.02. The latest available external forecast in this period will be read. By default the latest before time0 is returned
externalForecastTimeId	idStringType	required	Since 2018.01. Forecast time reference id configured in the forecast length estimator config. Can only be used in workflows and only after the forecast length estimator.
externalForecastMinAge	TimeSpanComplexType	optional	Since 2014.02. By default is there is no minimum age. All external forecasts after the time0 are ignored. The age of an external forecast is defined as the time span between the external forecast time and the time 0
externalForecastMaxAge	TimeSpanComplexType	optional	By default is there is no maximum age so the returned external forecast can be very old when there is no recent forecast available. All external forecasts after the time0 are ignored. The age of an external forecast is defined as the time span between the external forecast time and the time 0

CalendarTimeSpanComplexType

Attributes

Attribute	Use	Notes
unit	required
divider	optional
multiplier	optional

TimeShiftComplexType

Attributes

Attribute	Use	Notes
unit	required
divider	optional
multiplier	optional

TimeSeriesSetRelativePeriodComplexType

Defines a moving period in time. The start and end time are relative time to a certain time. When the start time is not specified it is determined by the start time of the state of the current run. When the start is overrulable the time is overruled by the start of search period or the start of cold state run when one of two is specified When the end is overrulable this time is overruled by the end of the forecast when specified

Attributes

Attribute	Use	Notes
unit	required
start	optional	e.g. -1 hour means one before time 0
end	required	e.g. 1 hour means one hour after time 0
startOverrulable	optional	default: false. When the running module (e.g. general adaptor) has exported a state the state time is used instead of the specified start time. This option is only available during a (forecast) run.
endOverrulable	optional	default: false. When a forecast length is specified (e.g. in the manual forecast dialog) the time 0 + forecast length is used instead of the specified end time This option is only available during a (forecast) run.

Elements

Element	Type	Cardinality	Description
description	string	optional

EnsembleMemberIndexRangeComplexType

Attributes

Attribute	Use	Notes
start	required
end	optional

Gotchas

• interpolationSerial fills gaps within one series (time axis only); interpolationSpatial moves values across locations or to/from a grid (space axis) — they’re not interchangeable despite the similar names. Use serial to patch a gauge record, spatial to turn point rainfall into a gridded field (or vice versa).
• maxGapLength bounds how large a gap interpolationSerial methods will bridge (in time steps) — omit it and an arbitrarily long stretch of missing data gets filled, rarely what you want. Same caution as on interpolation sets (the older, largely superseded file this function family effectively replaces).
• Most interpolationSpatial methods need searchRadius/numberOfPoints tuned to your station density — inverseDistance and kriging default to unbounded search radius and 8 points; a sparse network with far-apart stations may need a larger searchRadius or the result silently leans on distant, less-representative stations.
• altitude elevationLapse needs a coefficientSet, referenced either inline (coefficientSet) or from a separate file (coefficientSetId/coefficientSetFile, in Config/CoefficientSetsFiles/) — the lapse rate isn’t a single number on the function itself.
• rotation’s one method is narrowly scoped: it rotates u/v vector components from a rotated-pole grid geometry to WGS 1984 — it doesn’t reproject scalar grids. For scalar reprojection, look at interpolationSpatial methods instead (e.g. bilinear).

See also

• Reference: Transformation functions — basics · Temporal reshaping · Interpolation sets file (legacy, related concern)
• Task guide: Transformations
• Schema: transformationTypes.xsd