SAGA-GIS Tool Library Documentation (v6.1.0)

Tool Flow Width and Specific Catchment Area

Flow width and specific catchment area (SCA) calculation. SCA calculation needs total catchment area (TCA) as input, which can be calculated with one of the flow accumulation tools.


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationGrid (input)DEM--
Total Catchment Area (TCA) (*)Grid (optional input)TCA--
OutputFlow WidthGrid (output)WIDTH--
Specific Catchment Area (SCA)Grid (output)SCA--
OptionsGrid systemGrid systemPARAMETERS_GRID_SYSTEM--
MethodChoiceMETHOD-Available Choices:
[0] Deterministic 8
[1] Multiple Flow Direction (Quinn et al. 1991)
[2] Aspect
Default: 2
(*) optional

Command-line

Usage: saga_cmd ta_hydrology 19 [-DEM <str>] [-WIDTH <str>] [-TCA <str>] [-SCA <str>] [-METHOD <str>]
  -DEM:<str>   	Elevation
	Grid (input)
  -WIDTH:<str> 	Flow Width
	Grid (output)
  -TCA:<str>   	Total Catchment Area (TCA)
	Grid (optional input)
  -SCA:<str>   	Specific Catchment Area (SCA)
	Grid (output)
  -METHOD:<str>	Method
	Choice
	Available Choices:
	[0] Deterministic 8
	[1] Multiple Flow Direction (Quinn et al. 1991)
	[2] Aspect
	Default: 2