@BeginModule
@NewPage
@Name      = Remapnn
@Title     = Nearest neighbor remapping
@Section   = Interpolation
@Class     = Interpolation
@Arguments = ifile ofile
@Operators = remapnn gennn

@BeginDescription
This module contains operators for a nearest neighbor remapping of fields between grids
in spherical coordinates.
@EndDescription
@EndModule


@BeginOperator_remapnn
@Name      = remapnn
@Title     = Nearest neighbor remapping
@Parameter = grid

@BeginDescription
Performs a nearest neighbor remapping on all input fields.
@EndDescription
@EndOperator


@BeginOperator_gennn
@Name      = gennn
@Title     = Generate nearest neighbor remap weights
@Parameter = grid

@BeginDescription
Generates nearest neighbor remapping weights for the first input field and writes the result to a file.
The format of this file is netCDF following the SCRIP convention.
Use the operator @mod{remap} to apply this remapping weights to a data file with the same source grid.
@EndDescription
@EndOperator


@BeginParameter
@Item = grid
STRING  Target grid description file or name
@EndParameter


@BeginEnvironment
@Item = REMAP_EXTRAPOLATE
This variable is used to switch the extrapolation feature 'on' or 'off'.
By default the extrapolation is enabled for this remapping method.
@Item = CDO_GRIDSEARCH_RADIUS
Grid search radius in degree, default 180 degree.
@EndEnvironment
