Warm spell days index wrt 90th percentile of reference period

Let infile1 be a time series of the daily mean temperature TG, and infile2 be the 90th percentile TGn90 of daily mean temperatures for any period used as reference. Then counted is the number of days where, in intervals of at least nday consecutive days, TG > TGn90. The number nday is an optional parameter with default nday = 6. A further output variable is the number of warm-spell periods longer than or equal to nday days. TGn90 is calculated as the 90th percentile of daily mean temperatures of a five day window centred on each calendar day of a given climate reference period. Note that both TG and TGn90 have to be given in the same units. Parameter is a comma-separated list of \"key=values\" pairs.

Usage

cdo_eca_hwfi(ifile1, ifile2, nday = NULL, freq = NULL, ofile = NULL)

cdo_etccdi_wsdi(ifile1, ifile2, nday = NULL, freq = NULL, ofile = NULL)

Arguments

ifile1, ifile2

Strings with the path to the input files.

nday

INTEGER - Number of consecutive days (default: nday = 6)

freq

STRING - Output frequency (year, month)

ofile

String with the path to the output file.

Details

eca_hwfi     Warm spell days index wrt 90th percentile of reference period
             The operator counts over the entire time series.
             The date information of a timestep in outfile is the date of
             the last contributing timestep in infile.
etccdi_wsdi  Warm Spell Duration Index
             The default output frequency is yearly.
             Periods within overlapping years are accounted for the first year.
             The date information of a timestep in outfile is the mid of
             the frequency interval.