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.

Author: A. Günther (c) 2013
Specification: grid
Menu: Terrain Analysis|Slope Stability

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Elevation	Grid (input)	`DEM`	A Digital Elvation Model (DEM)	-
	Dip grid (degrees) (*)	Grid (optional input)	`C`	A grid representing the dip of the structure plane (in degrees)	-
	Dip direction grid (degrees) (*)	Grid (optional input)	`D`	A grid representing the dip direction of the structure plane (in degrees)	-
Output	Angle	Grid (output)	`E`	Acute angle (degrees) grid	-
	CL dipdir (*)	Grid (optional output)	`F`	Dip direction cutting line (degrees)	-
	CL dip (*)	Grid (optional output)	`G`	Dip cutting line (degrees)	-
Options	Global structure dip (degrees)	Floating point	`fB`	Constant value if no raster set	Default: 45.000000
Options	Global structure dip direction (degrees)	Floating point	`fC`	Constant value if no raster set	Default: 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)