Tool Soil Water Balance (Annual)
This tool calculates the water balance for the selected position on a daily basis. Needed input is monthly data of mean, minimum, and maximum temperature as well as precipitation.
References
- Paulsen, J. / Körner, C. (2014): A climate-based model to predict potential treeline position around the globe. Alpine Botany, 124:1, 1–12. doi:10.1007/s00035-014-0124-0.
- Author: O.Conrad, L.Landschreiber (c) 2016
- Menu: Simulation|Soil Hydrology
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | Mean Temperature | Grid list, input | T | - | - |
| Minimum Temperature | Grid list, input | TMIN | - | - |
| Maximum Temperature | Grid list, input | TMAX | - | - |
| Precipitation | Grid list, input | P | - | - |
| Soil Water Capacity of Profile (*) | Grid, input, optional | SWC | Total soil water capacity (mm H2O). | - |
| Output | Snow Depth (*) | Grids, output, optional | SNOW | - | - |
| Evapotranspiration (*) | Grids, output, optional | ETP | - | - |
| Soil Water (Upper Layer) (*) | Grids, output, optional | SW_0 | - | - |
| Soil Water (Lower Layer) (*) | Grids, output, optional | SW_1 | - | - |
| Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Default | Floating point | SWC_DEFAULT | default value if no grid has been selected | Minimum: 0.000000
Default: 220.000000 |
| Top Soil Water Capacity | Floating point | SWC_SURFACE | - | Minimum: 0.000000
Default: 10.000000 |
| Transpiration Resistance | Floating point | SW1_RESIST | - | Minimum: 0.010000
Default: 1.000000 |
| Default Latitude | Floating point | LAT_DEF | - | Minimum: -90.000000
Maximum: 90.000000
Default: 0.000000 |
| (*) optional |
Command-line
Usage: saga_cmd climate_tools 20 [-T <str>] [-TMIN <str>] [-TMAX <str>] [-P <str>] [-SWC <str>] [-SWC_DEFAULT <double>] [-SWC_SURFACE <double>] [-SW1_RESIST <double>] [-LAT_DEF <double>] [-SNOW <str>] [-ETP <str>] [-SW_0 <str>] [-SW_1 <str>]
-T:<str> Mean Temperature
Grid list, input
-TMIN:<str> Minimum Temperature
Grid list, input
-TMAX:<str> Maximum Temperature
Grid list, input
-P:<str> Precipitation
Grid list, input
-SWC:<str> Soil Water Capacity of Profile
Grid, input, optional
-SWC_DEFAULT:<double> Default
Floating point
Minimum: 0.000000
Default: 220.000000
-SWC_SURFACE:<double> Top Soil Water Capacity
Floating point
Minimum: 0.000000
Default: 10.000000
-SW1_RESIST:<double> Transpiration Resistance
Floating point
Minimum: 0.010000
Default: 1.000000
-LAT_DEF:<double> Default Latitude
Floating point
Minimum: -90.000000
Maximum: 90.000000
Default: 0.000000
-SNOW:<str> Snow Depth
Grids, output, optional
-ETP:<str> Evapotranspiration
Grids, output, optional
-SW_0:<str> Soil Water (Upper Layer)
Grids, output, optional
-SW_1:<str> Soil Water (Lower Layer)
Grids, output, optional