SAGA 9.4.2 | Tool Library Documentation

Diffusive Hillslope Evolution (FTCS)


Description

Simulation of diffusive hillslope evolution using a Forward-Time-Centered-Space (FTCS) method.


References


Parameters

 NameTypeIdentifierDescriptionConstraints
InputElevationgrid, inputDEM--
OutputModelled Elevationgrid, outputMODEL--
Elevation Differencegrid, output, optionalDIFF--
OptionsGrid Systemgrid systemPARAMETERS_GRID_SYSTEM--
UpdatebooleanUPDATE-Default: 1
Diffusivity [m2 / kyr]floating point numberKAPPA-Minimum: 0.000000 Default: 1.000000
Simulation Time [kyr]floating point numberDURATION-Minimum: 0.000000 Default: 100.000000
Time StepchoiceTIMESTEP-Available Choices: [0] user defined [1] automatically Default: 1
Time Step [kyr]floating point numberDTIME-Minimum: 0.000000 Default: 10.000000
NeighbourhoodchoiceNEIGHBOURS-Available Choices: [0] Neumann [1] Moore Default: 1

Command Line


Usage: saga_cmd sim_qm_of_esp 0 [-DEM ] [-MODEL ] [-DIFF ] [-UPDATE ] [-KAPPA ] [-DURATION ] [-TIMESTEP ] [-DTIME ] [-NEIGHBOURS ]
  -DEM:        	Elevation
	grid, input
  -MODEL:      	Modelled Elevation
	grid, output
  -DIFF:       	Elevation Difference
	grid, output, optional
  -UPDATE:     	Update
	boolean
	Default: 1
  -KAPPA:   	Diffusivity [m2 / kyr]
	floating point number
	Minimum: 0.000000
	Default: 1.000000
  -DURATION:	Simulation Time [kyr]
	floating point number
	Minimum: 0.000000
	Default: 100.000000
  -TIMESTEP:   	Time Step
	choice
	Available Choices:
	[0] user defined
	[1] automatically
	Default: 1
  -DTIME:   	Time Step [kyr]
	floating point number
	Minimum: 0.000000
	Default: 10.000000
  -NEIGHBOURS: 	Neighbourhood
	choice
	Available Choices:
	[0] Neumann
	[1] Moore
	Default: 1