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 | - | - |
| 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)