SAGA-GIS Tool Library Documentation (v7.8.2)

Tool Top Soil Water Content

The WEELS (Wind Erosion on European Light Soils) soil moisture model estimates the top soil water content on a daily basis using the Haude approach for evapotranspiration (cf. DVWK 1996). Input data is


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputField Capacity (*)Grid, input, optionalSTA_FC[mm]-
Permanent Wilting Point (*)Grid, input, optionalSTA_PWP[mm]-
Land Use (*)Grid, input, optionalLANDUSE--
OutputSoil MoistureGrid, outputDYN_W--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
DefaultFloating pointSTA_FC_DEFAULTdefault value if no grid has been selectedMinimum: 0.000000
Maximum: 100.000000
Default: 20.000000
DefaultFloating pointSTA_PWP_DEFAULTdefault value if no grid has been selectedMinimum: 0.000000
Maximum: 100.000000
Default: 2.000000
DefaultIntegerLANDUSE_DEF-Default: -1
Climate DataStatic tableDYN_CLIMATE-3 Fields:
- 1. [8 byte floating point number] Precipitation [mm]
- 2. [8 byte floating point number] Temperature [2pm Deg.C]
- 3. [8 byte floating point number] Air Humidity [2pm [%]
Crop CoefficientsStatic tableSTA_KC-14 Fields:
- 1. [signed 4 byte integer] Land Use ID
- 2. [string] Name
- 3. [8 byte floating point number] January
- 4. [8 byte floating point number] February
- 5. [8 byte floating point number] March
- 6. [8 byte floating point number] April
- 7. [8 byte floating point number] May
- 8. [8 byte floating point number] June
- 9. [8 byte floating point number] July
- 10. [8 byte floating point number] August
- 11. [8 byte floating point number] September
- 12. [8 byte floating point number] October
- 13. [8 byte floating point number] November
- 14. [8 byte floating point number] December
(*) optional

Command-line

Usage: saga_cmd sim_hydrology 0 [-STA_FC <str>] [-STA_FC_DEFAULT <double>] [-STA_PWP <str>] [-STA_PWP_DEFAULT <double>] [-LANDUSE <str>] [-LANDUSE_DEF <num>] [-DYN_W <str>] [-DYN_CLIMATE <str>] [-STA_KC <str>]
  -STA_FC:<str>            	Field Capacity
	Grid, input, optional
  -STA_FC_DEFAULT:<double> 	Default
	Floating point
	Minimum: 0.000000
	Maximum: 100.000000
	Default: 20.000000
  -STA_PWP:<str>           	Permanent Wilting Point
	Grid, input, optional
  -STA_PWP_DEFAULT:<double>	Default
	Floating point
	Minimum: 0.000000
	Maximum: 100.000000
	Default: 2.000000
  -LANDUSE:<str>           	Land Use
	Grid, input, optional
  -LANDUSE_DEF:<num>       	Default
	Integer
	Default: -1
  -DYN_W:<str>             	Soil Moisture
	Grid, output
  -DYN_CLIMATE:<str>       	Climate Data
	Static table
	3 Fields:
	- 1. [8 byte floating point number] Precipitation [mm]
	- 2. [8 byte floating point number] Temperature [2pm Deg.C]
	- 3. [8 byte floating point number] Air Humidity [2pm []
	
  -STA_KC:<str>            	Crop Coefficients
	Static table
	14 Fields:
	- 1. [signed 4 byte integer] Land Use ID
	- 2. [string] Name
	- 3. [8 byte floating point number] January
	- 4. [8 byte floating point number] February
	- 5. [8 byte floating point number] March
	- 6. [8 byte floating point number] April
	- 7. [8 byte floating point number] May
	- 8. [8 byte floating point number] June
	- 9. [8 byte floating point number] July
	- 10. [8 byte floating point number] August
	- 11. [8 byte floating point number] September
	- 12. [8 byte floating point number] October
	- 13. [8 byte floating point number] November
	- 14. [8 byte floating point number] December