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@BeginModule
@NewPage
@Name      = WindTrans
@Title     = Wind Transformation
@Section   = Miscellaneous
@Arguments = infile outfile
@Operators = uvDestag rotuvNorth projuvLatLon

@BeginDescription
This module contains special operators for datsets with wind components on a rotated lon/lat grid, 
e.g. data from the regional model HIRLAM or REMO. 
@EndDescription
@EndModule


@BeginOperator_uvDestag
@Title     = Destaggering of u/v wind components
@Parameter = u v [-/+0.5] [-/+0.5]

@BeginDescription
This is a special operator for destaggering of wind components.
If the file contains a grid with temperature (name='t' or code=11)
then grid_temp will be used for destaggered wind.
@EndDescription
@EndOperator


@BeginOperator_rotuvNorth
@Title     = Rotate u/v wind to North pole.
@Parameter = u v

@BeginDescription
This is an operator for transformation of wind-vectors from grid-relative to north-pole
relative for the whole file. (FAST implementation with JACOBIANS)
@EndDescription
@EndOperator


@BeginOperator_projuvLatLon
@Title     = Cylindrical Equidistant projection
@Parameter = u v

@BeginDescription
Thus is an operator for transformation of wind-vectors from the globe-spherical coordinate system
into a flat Cylindrical Equidistant (lat-lon) projection. (FAST JACOBIAN implementation)
@EndDescription
@EndOperator


@BeginParameter
@Item = u,v
STRING  Pair of u,v wind components (use variable names or code numbers)
@Item = -/+0.5,-/+0.5
STRING  Destaggered grid offsets are optional (default -0.5,-0.5)
@EndParameter


@BeginExample
Typical operator sequence on HIRLAM NWP model output (LAMH_D11 files):
@BeginVerbatim
cdo uvDestag,33,34   inputfile inputfile_destag
cdo rotuvNorth,33,34 inputfile_destag inputfile_rotuvN
@EndVerbatim
@EndExample