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