Heating degree days per time period

Let infile be a time series of the daily mean temperature TG, then the heating degree days are defined as the sum of T1 - TG, where only values TG < T2 are considered. If T1 and T2 are omitted, a temperature of 17°C is used for both parameters. If only T1 is given, T2 is set to T1. Note that TG have to be given in units of kelvin, whereas T1 and T2 have to be given in degrees Celsius. The date information of a timestep in outfile is the date of the last contributing timestep in infile.

Usage

cdo_eca_hd(ifile, T1 = NULL, T2 = NULL, ofile = NULL)

Arguments

ifile

String with the path to the input file.

T1

FLOAT - Temperature limit (unit: °C; default: T1 = 17°C)

T2

FLOAT - Temperature limit (unit: °C; default: T2 = T1)

ofile

String with the path to the output file.