20 Transformation Module (New Version)

Transformation Module Configuration (New Version)

The Transformation module is a general-purpose module that allows for generic transformation and manipulation of time series data. The module may be configured to provide for simple arithmetic manipulation, time interval transformation, shifting the series in time etc, as well as for applying specific hydro-meteorological transformations such as stage discharge relationships etc.

A new version of the FEWS Transformation Module is currently under construction. The new version is much more easy to configure than the old version. The new version uses a new schema for configuration, which is explained below (TODO). Currently only a few of the old transformations are available in the new transformation module. A list with available transformations follows. This list will be continuously updated to show the current status of the new transformation module.

• user
  • simple (free format expression)
• merge
  • simple (merge data hierarchy)
• aggregation
  • instantaneous
  • accumulative
• precipitation
  • tipping bucket
• sample
  • non-equidistant (converts non-equidistant to equidistant or converts non-equidistant to non-equidistant)
  • equidistant (converts equidistant to non-equidistant or converts equidistant to equidistant)
• structures
  • general weir fixed height
  • general weir variable height
• stage discharge
  • power
• discharge stage
  • power
• interpolation serial
  • linear
  • block
  • extrapolate constant

When available as configuration on the file system, the name of the XML file for configuring an instance of the transformation module called for example TransformHBV_Inputs may be:

TransformHBV_Inputs 1.00 default.xml