Module Successive Flow Routing
Calculation of flow accumulation, aka upslope contributing area, with the multiple flow direction method after Freeman (1991).
References:
Freeman, G.T. (1991): Calculating catchment area with divergent flow based on a rectangular grid. Computers & Geosciences, 17, pp.413-422.
Pelletier, J.D. (2008): Quantitative Modeling of Earth Surface Processes. Cambridge, 295p.
- Author: O.Conrad (c) 2013
- Menu: Simulation|Hydrology
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | DEM | Grid (input) | DEM | - | - |
| Output | Flow | Grid (output) | FLOW | - | - |
| Options | Grid system | Grid system | PARAMETERS_GRID_SYSTEM | Grid system | - |
| Iterations | Integer | ITERATIONS | - | Minimum: 1
Default: 100 |
| Runoff | Floating point | RUNOFF | - | Default: 1.000000 |
| Manning's Roughness | Floating point | MANNING | - | Default: 0.200000 |
Command-line
Usage: saga_cmd sim_qm_of_esp 3 [-DEM <str>] [-FLOW <str>] [-ITERATIONS <num>] [-RUNOFF <double>] [-MANNING <double>]
-DEM:<str> DEM
Grid (input)
-FLOW:<str> Flow
Grid (output)
-ITERATIONS:<num> Iterations
Integer
Minimum: 1
Default: 100
-RUNOFF:<double> Runoff
Floating point
Default: 1.000000
-MANNING:<double> Manning's Roughness
Floating point
Default: 0.200000