SAGA-GIS Tool Library Documentation (v7.2.0)

Tool Basic Terrain Analysis

A selection of basic parameters and objects to be derived from a Digital Terrain Model using standard settings.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationGrid (input)ELEVATION--
OutputAnalytical HillshadingGrid (output)SHADE--
SlopeGrid (output)SLOPE--
AspectGrid (output)ASPECT--
Plan CurvatureGrid (output)HCURV--
Profile CurvatureGrid (output)VCURV--
Convergence IndexGrid (output)CONVERGENCE--
Closed DepressionsGrid (output)SINKS--
Total Catchment AreaGrid (output)FLOW--
Topographic Wetness IndexGrid (output)WETNESS--
LS-FactorGrid (output)LSFACTOR--
Channel NetworkShapes (output)CHANNELS--
Drainage BasinsShapes (output)BASINS--
Channel Network Base LevelGrid (output)CHNL_BASE--
Channel Network DistanceGrid (output)CHNL_DIST--
Valley DepthGrid (output)VALL_DEPTH--
Relative Slope PositionGrid (output)RSP--
OptionsGrid systemGrid systemPARAMETERS_GRID_SYSTEM--
Channel DensityIntegerTHRESHOLDStrahler order to begin a channel.Minimum: 1
Default: 5

Command-line

Usage: saga_cmd ta_compound 0 [-ELEVATION <str>] [-SHADE <str>] [-SLOPE <str>] [-ASPECT <str>] [-HCURV <str>] [-VCURV <str>] [-CONVERGENCE <str>] [-SINKS <str>] [-FLOW <str>] [-WETNESS <str>] [-LSFACTOR <str>] [-CHANNELS <str>] [-BASINS <str>] [-CHNL_BASE <str>] [-CHNL_DIST <str>] [-VALL_DEPTH <str>] [-RSP <str>] [-THRESHOLD <num>]
  -ELEVATION:<str>  	Elevation
	Grid (input)
  -SHADE:<str>      	Analytical Hillshading
	Grid (output)
  -SLOPE:<str>      	Slope
	Grid (output)
  -ASPECT:<str>     	Aspect
	Grid (output)
  -HCURV:<str>      	Plan Curvature
	Grid (output)
  -VCURV:<str>      	Profile Curvature
	Grid (output)
  -CONVERGENCE:<str>	Convergence Index
	Grid (output)
  -SINKS:<str>      	Closed Depressions
	Grid (output)
  -FLOW:<str>       	Total Catchment Area
	Grid (output)
  -WETNESS:<str>    	Topographic Wetness Index
	Grid (output)
  -LSFACTOR:<str>   	LS-Factor
	Grid (output)
  -CHANNELS:<str>   	Channel Network
	Shapes (output)
  -BASINS:<str>     	Drainage Basins
	Shapes (output)
  -CHNL_BASE:<str>  	Channel Network Base Level
	Grid (output)
  -CHNL_DIST:<str>  	Channel Network Distance
	Grid (output)
  -VALL_DEPTH:<str> 	Valley Depth
	Grid (output)
  -RSP:<str>        	Relative Slope Position
	Grid (output)
  -THRESHOLD:<num>  	Channel Density
	Integer
	Minimum: 1
	Default: 5