Flow Accumulation (QM of ESP)
- Author: O.Conrad (c) 2013
- Menu: Terrain Analysis | Hydrology | Flow Accumulation | Alternatives
Description
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.
Parameters
| | Name | Type | Identifier | Description | Constraints |
|---|
| Input | DEM | grid, input | DEM | - | - |
| Output | Contributing Area | grid, output | FLOW | - | - |
| Options | Grid System | grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Preprocessing | choice | PREPROC | - | Available Choices:
[0] none
[1] fill sinks temporarily
[2] fill sinks permanently
Default: 1 |
| Fill Increment | floating point number | DZFILL | - | Minimum: 0.000000
Default: 0.010000 |
Command Line
Usage: saga_cmd sim_qm_of_esp 2 [-DEM ] [-FLOW ] [-PREPROC ] [-DZFILL ]
-DEM: DEM
grid, input
-FLOW: Contributing Area
grid, output
-PREPROC: Preprocessing
choice
Available Choices:
[0] none
[1] fill sinks temporarily
[2] fill sinks permanently
Default: 1
-DZFILL: Fill Increment
floating point number
Minimum: 0.000000
Default: 0.010000