SAGA-GIS Tool Library Documentation (v7.8.2)

Tool Curvature Classification

Landform classification based on the profile and tangential (across slope) curvatures.


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationGrid, inputDEM--
OutputCurvature ClassificationGrid, outputCLASSES--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
Threshold RadiusFloating pointSTRAIGHTCurvature radius threshold [map units] to distinct between straight and curved surfaces.Minimum: 0.000010
Default: 2000.000000
Vertical CurvatureChoiceVERTICAL-Available Choices:
[0] longitudinal curvature
[1] profile curvature
Default: 1
Horizontal CurvatureChoiceHORIZONTAL-Available Choices:
[0] cross-sectional curvature
[1] tangential curvature
Default: 1
SmoothingIntegerSMOOTHSmoothing kernel radius. No smoothing will be done, if set to zero.Minimum: 0
Default: 0

Command-line

Usage: saga_cmd ta_morphometry 4 [-DEM <str>] [-CLASSES <str>] [-STRAIGHT <double>] [-VERTICAL <str>] [-HORIZONTAL <str>] [-SMOOTH <num>]
  -DEM:<str>        	Elevation
	Grid, input
  -CLASSES:<str>    	Curvature Classification
	Grid, output
  -STRAIGHT:<double>	Threshold Radius
	Floating point
	Minimum: 0.000010
	Default: 2000.000000
  -VERTICAL:<str>   	Vertical Curvature
	Choice
	Available Choices:
	[0] longitudinal curvature
	[1] profile curvature
	Default: 1
  -HORIZONTAL:<str> 	Horizontal Curvature
	Choice
	Available Choices:
	[0] cross-sectional curvature
	[1] tangential curvature
	Default: 1
  -SMOOTH:<num>     	Smoothing
	Integer
	Minimum: 0
	Default: 0