SAGA 9.7.0 | Tool Library Documentation

Compound Hydrologic Terrain Analysis


Description

A one-step tool for the creation of selected terrain parameters related to hydrology.For details look at the description of the tools used for processing:


Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationgrid, inputELEVATION--
OutputClosed Depressionsgrid, output, optionalSINKS--
Total Catchment Areagrid, outputTCA--
Specific Catchment Areagrid, outputSCA--
Topographic Wetness Indexgrid, outputTWI--
SAGA Topographic Wetness Indexgrid, outputTWI_SAGA--
LS Factorgrid, outputLS--
Stream Power Indexgrid, outputSPI--
Channel Initiation Thresholdgrid, outputCIT--
OptionsGrid Systemgrid systemPARAMETERS_GRID_SYSTEM--
PreprocessingchoiceMETHOD_PREPROC-Available Choices: [0] Sink Removal [1] Fill Sinks (Wang & Liu) [2] Breach Depressions [3] none Default: 0
Flow AccumulationchoiceMETHOD_FLOWACCAlgorithm used to calculate total catchment area.Available Choices: [0] Deterministic 8 [1] Rho 8 [2] Deterministic Infinity [3] Multiple Flow Direction [4] Multiple Triangular Flow Direction [5] Multiple Maximum Downslope Gradient Based Flow Direction [6] Kinematic Routing Algorithm [7] DEMON Default: 3
LS FactorchoiceMETHOD_LS-Available Choices: [0] Moore et al. 1991 [1] Desmet & Govers 1996 [2] Boehner & Selige 2006 Default: 0

Command Line


Usage: saga_cmd ta_compound 2 [-ELEVATION ] [-SINKS ] [-TCA ] [-SCA ] [-TWI ] [-TWI_SAGA ] [-LS ] [-SPI ] [-CIT ] [-METHOD_PREPROC ] [-METHOD_FLOWACC ] [-METHOD_LS ]
  -ELEVATION:     	Elevation
	grid, input
  -SINKS:         	Closed Depressions
	grid, output, optional
  -TCA:           	Total Catchment Area
	grid, output
  -SCA:           	Specific Catchment Area
	grid, output
  -TWI:           	Topographic Wetness Index
	grid, output
  -TWI_SAGA:      	SAGA Topographic Wetness Index
	grid, output
  -LS:            	LS Factor
	grid, output
  -SPI:           	Stream Power Index
	grid, output
  -CIT:           	Channel Initiation Threshold
	grid, output
  -METHOD_PREPROC:	Preprocessing
	choice
	Available Choices:
	[0] Sink Removal
	[1] Fill Sinks (Wang & Liu)
	[2] Breach Depressions
	[3] none
	Default: 0
  -METHOD_FLOWACC:	Flow Accumulation
	choice
	Available Choices:
	[0] Deterministic 8
	[1] Rho 8
	[2] Deterministic Infinity
	[3] Multiple Flow Direction
	[4] Multiple Triangular Flow Direction
	[5] Multiple Maximum Downslope Gradient Based Flow Direction
	[6] Kinematic Routing Algorithm
	[7] DEMON
	Default: 3
  -METHOD_LS:     	LS Factor
	choice
	Available Choices:
	[0] Moore et al. 1991
	[1] Desmet & Govers 1996
	[2] Boehner & Selige 2006
	Default: 0