Basic Terrain Analysis

Author: O.Conrad (c) 2005
Menu: Terrain Analysis

Description

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

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Elevation	grid, input	`ELEVATION`	-	-
Output	Analytical Hillshading	grid, output	`SHADE`	-	-
	Slope	grid, output	`SLOPE`	-	-
	Aspect	grid, output	`ASPECT`	-	-
	Plan Curvature	grid, output	`HCURV`	-	-
	Profile Curvature	grid, output	`VCURV`	-	-
	Convergence Index	grid, output	`CONVERGENCE`	-	-
	Closed Depressions	grid, output	`SINKS`	-	-
	Total Catchment Area	grid, output	`FLOW`	-	-
	Topographic Wetness Index	grid, output	`WETNESS`	-	-
	LS-Factor	grid, output	`LSFACTOR`	-	-
	Channel Network	shapes, output	`CHANNELS`	-	-
	Drainage Basins	shapes, output	`BASINS`	-	-
	Channel Network Base Level	grid, output	`CHNL_BASE`	-	-
	Channel Network Distance	grid, output	`CHNL_DIST`	-	-
	Valley Depth	grid, output	`VALL_DEPTH`	-	-
	Relative Slope Position	grid, output	`RSP`	-	-
Options	Grid System	grid system	`PARAMETERS_GRID_SYSTEM`	-	-
Options	Channel Density	integer number	`THRESHOLD`	Strahler order to begin a channel.	Minimum: 1 Default: 5

Command Line

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