ANGMAP

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

Description

This tool 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

	Name	Type	Identifier	Description	Constraints
Input	Elevation	grid, input	`DEM`	A Digital Elvation Model (DEM)	-
	Dip grid (degrees)	grid, input, optional	`C`	A grid representing the dip of the structure plane (in degrees)	-
	Dip direction grid (degrees)	grid, input, optional	`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, output, optional	`F`	Dip direction cutting line (degrees)	-
	CL dip	grid, output, optional	`G`	Dip cutting line (degrees)	-
Options	Grid System	grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Global structure dip (degrees)	floating point number	`fB`	Constant value if no raster set	Default: 45.000000
	Global structure dip direction (degrees)	floating point number	`fC`	Constant value if no raster set	Default: 90.000000

Command Line

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