Successive Flow Routing

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

Description

Calculation of flow accumulation, aka upslope contributing area, with the multiple flow direction method after Freeman (1991).

This tool implements suggested code examples from the text book Quantitative Modeling of Earth Surface Processes (Pelletier 2008) and serves as demonstration on code adaptions for the SAGA API. Note that this tool may be of limited use for operational purposes!

References

Freeman, G.T. (1991): Calculating catchment area with divergent flow based on a regular grid. Computers and Geosciences, 17:413-22. doi:10.1016/0098-3004(91)90048-I.
Pelletier, J.D. (2008): Quantitative Modeling of Earth Surface Processes. Cambridge, 295p. doi:10.1017/CBO9780511813849.

Parameters

	Name	Type	Identifier	Description	Constraints
Input	DEM	grid, input	`DEM`	-	-
Output	Flow	grid, output	`FLOW`	-	-
Options	Grid System	grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Iterations	integer number	`ITERATIONS`	-	Minimum: 1 Default: 100
	Runoff	floating point number	`RUNOFF`	-	Minimum: 0.000000 Default: 1.000000
	Manning's Roughness	floating point number	`MANNING`	-	Default: 0.200000

Command Line


Usage: saga_cmd sim_qm_of_esp 3 [-DEM ] [-FLOW ] [-ITERATIONS ] [-RUNOFF ] [-MANNING ]
  -DEM:       	DEM
	grid, input
  -FLOW:      	Flow
	grid, output
  -ITERATIONS:	Iterations
	integer number
	Minimum: 1
	Default: 100
  -RUNOFF: 	Runoff
	floating point number
	Minimum: 0.000000
	Default: 1.000000
  -MANNING:	Manning's Roughness
	floating point number
	Default: 0.200000