strwin: Strong wind days index per time period

In rcdo: Wrapper of 'CDO' Operators

Strong wind days index per time period

Description

Let infile be a time series of the daily maximum horizontal wind speed VX, then the number of days where VX > v is counted. The horizontal wind speed v is an optional parameter with default v = 10.5 m/s. A further output variable is the maximum number of consecutive days with maximum wind speed greater than or equal to v. Note that both VX and v have to be given in units of m/s. Also note that the horizontal wind speed is defined as the square root of the sum of squares of the zonal and meridional wind speeds. The date information of a timestep in outfile is the date of the last contributing timestep in infile.

Usage

cdo_strwin(ifile, v = NULL, ofile = NULL)

Arguments

ifile	String with the path to the input file.
v	FLOAT - Horizontal wind speed threshold (m/s, default v = 10.5 m/s)
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.

rcdo documentation built on June 8, 2025, 12:36 p.m.