Tool Growing Degree Days

This tool calculates growing degree days from daily or from spline interpolated monthly observations.

Author: D.N. Karger (c) 2017
Menu: Climate|Bioclimatology

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Mean Monthly Temperatures	Grid list (input)	`TMEAN`	Monthly (12) temperature observations.	-
Output	Number of Days above Base Temperature	Grid (output)	`NGDD`	Number of days above base temperature.	-
	Growing Degree Days	Grid (output)	`TSUM`	Integral of daily temperature above base temperature.	-
	First Growing Degree Day (*)	Grid (optional output)	`FIRST`	First growing degree day of the year (1-365).	-
	Last Growing Degree Day (*)	Grid (optional output)	`LAST`	Last growing degree day of the year (1-365).	-
Options	Grid system	Grid system	`PARAMETERS_GRID_SYSTEM`	-	-
Options	Base Temperature	Floating point	`TBASE`	Base temperature in degree Celsius	Default: 0.000000
(*) optional

Command-line

Usage: saga_cmd climate_tools 18 [-TMEAN <str>] [-TBASE <double>] [-NGDD <str>] [-TSUM <str>] [-FIRST <str>] [-LAST <str>]
  -TMEAN:<str>   	Mean Monthly Temperatures
	Grid list (input)
  -TBASE:<double>	Base Temperature
	Floating point
	Default: 0.000000
  -NGDD:<str>    	Number of Days above Base Temperature
	Grid (output)
  -TSUM:<str>    	Growing Degree Days
	Grid (output)
  -FIRST:<str>   	First Growing Degree Day
	Grid (optional output)
  -LAST:<str>    	Last Growing Degree Day
	Grid (optional output)