Tool Diffusive Hillslope Evolution (ADI)

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

References

Pelletier, J.D. (2008): Quantitative Modeling of Earth Surface Processes. Cambridge, 295p.

Author: O.Conrad (c) 2013
Menu: Simulation|Hillslope Evolution

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Elevation	Grid, input	`DEM`	-	-
Input	Channel Mask (*)	Grid, input, optional	`CHANNELS`	use a zero value for hillslopes, any other value for channel cells.	-
Output	Modelled Elevation	Grid, output	`MODEL`	-	-
Output	Elevation Difference (*)	Grid, output, optional	`DIFF`	-	-
Options	Grid System	Grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Update	Boolean	`UPDATE`	-	Default: 1
	Diffusivity [m2 / kyr]	Floating point	`KAPPA`	-	Minimum: 0.000000 Default: 10.000000
	Simulation Time [kyr]	Floating point	`DURATION`	-	Minimum: 0.000000 Default: 10000.000000
	Time Step	Choice	`TIMESTEP`	-	Available Choices: [0] user defined [1] automatically Default: 0
	Time Step [kyr]	Floating point	`DTIME`	-	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