Let infile1 be a time series of the daily minimum temperature TN and infile2 be a corresponding series of daily surface snow amounts. Then the number of days where TN < 0 °C and the surface snow amount is less than 1 cm is counted. The temperature TN have to be given in units of Kelvin. The date information of a timestep in outfile is the date of the last contributing timestep in infile.
Usage
cdo_fdns(ifile1, ifile2, ofile = NULL)
Arguments
- ifile1, ifile2
Strings with the path to the input files.
- 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.