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This modifier is used in combination with the transformation mergeWeighted. This transformation has two input time series
and created creates an output timeseries by taking the weighted average of both input time series. To be able to use this modifier
the transformation must use a module parameter file to define its parameters.
An example of the use of this modifier is the BLENTEMP and BLENDPREC. Both modifiers are used by the NWS.
BLENDTEMP is used to blend the observed and simulated
temperature time series.
BLENDPREC is used to blend the observed and simulated precipitation time series.
Both blend operations are done as part of the preprocessing step prior to creating a forecast.
Display
Below an example of a change weight time series.
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