Nearest neighbor remapping — cdo

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

Usage

cdo_gennn(ifile, grid = NULL, map3d = NULL, ofile = NULL)

cdo_remapnn(ifile, grid = NULL, map3d = NULL, ofile = NULL)

Arguments

ifile: String with the path to the input file.
grid: STRING - Target grid description file or name
map3d: BOOL - Generate all mapfiles of the first 3D field
ofile: String with the path to the output file.

Value

Operators that output one or more files return a character vector to the output files.

Operators that output an indefinite number of files return a string with the basename of the files.

Operatos that don't return filenames return a character vector with the string output.

Details

remapnn  Nearest neighbor remapping
         Performs a nearest neighbor remapping on all input fields.
gennn    Generate nearest neighbor remap weights
         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 remap to apply this remapping weights to a data file with the same source grid.
         Set the parameter map3d=true to generate all mapfiles of the first 3D field with varying masks.
         In this case the mapfiles will be named &lt;outfile&gt;&lt;xxx&gt;.nc. xxx will have five digits with the number of the mapfile.