SAGA-GIS Tool Library Documentation (v9.1.2)

Tool Diffusive Hillslope Evolution (ADI)

Simulation of diffusive hillslope evolution using an Alternating-Direction-Implicit (ADI) method.


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationGrid, inputDEM--
Channel Mask (*)Grid, input, optionalCHANNELSuse a zero value for hillslopes, any other value for channel cells.-
OutputModelled ElevationGrid, outputMODEL--
Elevation Difference (*)Grid, output, optionalDIFF--
OptionsGrid SystemGrid systemPARAMETERS_GRID_SYSTEM--
UpdateBooleanUPDATE-Default: 1
Diffusivity [m2 / kyr]Floating pointKAPPA-Minimum: 0.000000
Default: 10.000000
Simulation Time [kyr]Floating pointDURATION-Minimum: 0.000000
Default: 10000.000000
Time StepChoiceTIMESTEP-Available Choices:
[0] user defined
[1] automatically
Default: 0
Time Step [kyr]Floating pointDTIME-Minimum: 0.000000
Default: 1000.000000
(*) optional

Command-line

Usage: saga_cmd sim_qm_of_esp 4 [-DEM <str>] [-CHANNELS <str>] [-MODEL <str>] [-DIFF <str>] [-UPDATE <str>] [-KAPPA <double>] [-DURATION <double>] [-TIMESTEP <str>] [-DTIME <double>]
  -DEM:<str>        	Elevation
	Grid, input
  -CHANNELS:<str>   	Channel Mask
	Grid, input, optional
  -MODEL:<str>      	Modelled Elevation
	Grid, output
  -DIFF:<str>       	Elevation Difference
	Grid, output, optional
  -UPDATE:<str>     	Update
	Boolean
	Default: 1
  -KAPPA:<double>   	Diffusivity [m2 / kyr]
	Floating point
	Minimum: 0.000000
	Default: 10.000000
  -DURATION:<double>	Simulation Time [kyr]
	Floating point
	Minimum: 0.000000
	Default: 10000.000000
  -TIMESTEP:<str>   	Time Step
	Choice
	Available Choices:
	[0] user defined
	[1] automatically
	Default: 0
  -DTIME:<double>   	Time Step [kyr]
	Floating point
	Minimum: 0.000000
	Default: 1000.000000