rcdo (version 0.3.0)

ncl_wind: Wind transformation

Description

This module contains CDO operators with an interface to NCL functions. The corresponding NCL functions have the same name. A more detailed description of those NCL function can be found on the NCL homepage https://www.ncl.ucar.edu.

Usage

cdo_uv2dv_cfd(
  ifile,
  u = NULL,
  v = NULL,
  boundOpt = NULL,
  outMode = NULL,
  ofile = NULL
)
cdo_uv2vr_cfd(
  ifile,
  u = NULL,
  v = NULL,
  boundOpt = NULL,
  outMode = NULL,
  ofile = NULL
)

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.

Arguments

ifile

String with the path to the input file.

u

STRING - Name of variable u (default: u)

v

STRING - Name of variable v (default: v)

boundOpt

INTEGER - Boundary condition option (0-3) (default: 0/1 for cyclic grids)

outMode

STRING - Output mode new/append (default: new)

ofile

String with the path to the output file.

Details

uv2vr_cfd  U and V wind to relative vorticity
           Computes relative vorticity for a latitude-longitude grid using centered finite differences.
           The grid need not be global and missing values are allowed.
uv2dv_cfd  U and V wind to divergence
           Computes divergence for a latitude-longitude grid using centered finite differences.
           The grid need not be global and missing values are allowed.