SAGA-GIS Module Library Documentation (v2.1.3)

Module ANGMAP


This module computes the acute angle raster between the topographic surface defined by slope and aspect rasters internally derived from input elevation raster, and a structural plane defined by diop direction- and dip grids. Optionally, the dip direction and dip of the cutting line linears between the two planes can be calculated
Reference: Günther, A. (2003). SLOPEMAP: programs for automated mapping of geometrical and kinematical properties of hard rock hill slopes. Computers & Geosciences, 29, 865 - 875.

Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationGrid (input)DEMA Digital Elvation Model (DEM)-
Dip grid (degrees) (*)Grid (optional input)CA grid representing the dip of the structure plane (in degrees)-
Dip direction grid (degrees) (*)Grid (optional input)DA grid representing the dip direction of the structure plane (in degrees)-
OutputAngleGrid (output)EAcute angle (degrees) grid-
CL dipdir (*)Grid (optional output)FDip direction cutting line (degrees)-
CL dip (*)Grid (optional output)GDip cutting line (degrees)-
OptionsGlobal structure dip (degrees)Floating pointfBConstant value if no raster setDefault: 45.000000
Global structure dip direction (degrees)Floating pointfCConstant value if no raster setDefault: 90.000000
(*) optional

Command-line

Usage: saga_cmd ta_slope_stability 5 -DEM <str> [-C <str>] [-D <str>] [-fB <str>] [-fC <str>] [-E <str>] [-F <str>] [-G <str>]
  -DEM:<str>	Elevation
	Grid (input)
  -C:<str>  	Dip grid (degrees) 
	Grid (optional input)
  -D:<str>  	Dip direction grid (degrees) 
	Grid (optional input)
  -fB:<str> 	Global structure dip (degrees)
	Floating point
	Default: 45.000000
  -fC:<str> 	Global structure dip direction (degrees)
	Floating point
	Default: 90.000000
  -E:<str>  	Angle
	Grid (output)
  -F:<str>  	CL dipdir
	Grid (optional output)
  -G:<str>  	CL dip
	Grid (optional output)