Largest area fraction remapping — cdo

This module contains operators for a largest area fraction remapping of fields between grids in spherical coordinates. The operators in this module uses code from the YAC software package to compute the largest area fraction. For a detailed description of the interpolation method see YAC. The interpolation method is completely general and can be used for any grid on a sphere. The search algorithm for this remapping method requires that no grid cell occurs more than once.

Usage

cdo_genlaf(ifile, grid = NULL, ofile = NULL)

cdo_remaplaf(ifile, grid = NULL, ofile = NULL)

Arguments

ifile: String with the path to the input file.
grid: STRING - Target grid description file or name
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

remaplaf  Largest area fraction remapping
          Performs a largest area fraction remapping on all input fields.
genlaf    Generate largest area fraction remap weights
          Generates largest area fraction 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.