Flow Accumulation (One Step)
- Author: O.Conrad (c) 2019
- Menu: Terrain Analysis | Hydrology | Flow Accumulation
Description
This is a simple to use one step tool to derive flow accumulation from a Digital Terrain Model. It includes a preprocessing followed by a call to 'Flow Accumulation (Top-Down) exposing only the most important options.
Parameters
| Name | Type | Identifier | Description | Constraints | |
|---|---|---|---|---|---|
| Input | Elevation | grid, input | DEM | - | - |
| Output | Flow Accumulation | grid, output | TCA | The flow accumulation, a.k.a. Total Catchment Area (TCA) | - |
| Specific Catchment Area | grid, output, optional | SCA | - | - | |
| Options | Grid System | grid system | GRID_SYSTEM | - | - |
| Preprocessing | choice | PREPROCESSING | - | Available Choices: [0] Fill Sinks (Wang & Liu) [1] Sink Removal Default: 0 | |
| Flow Routing | choice | FLOW_ROUTING | - | Available Choices: [0] Deterministic 8 [1] Rho 8 [2] Braunschweiger Reliefmodell [3] Deterministic Infinity [4] Multiple Flow Direction [5] Multiple Triangular Flow Direction [6] Multiple Maximum Downslope Gradient Based Flow Direction Default: 0 |
Command Line
Usage: saga_cmd ta_hydrology flow_accumulation [-DEM] [-TCA ] [-SCA ] [-PREPROCESSING ] [-FLOW_ROUTING ] -DEM: Elevation grid, input -TCA: Flow Accumulation grid, output -SCA: Specific Catchment Area grid, output, optional -PREPROCESSING: Preprocessing choice Available Choices: [0] Fill Sinks (Wang & Liu) [1] Sink Removal Default: 0 -FLOW_ROUTING: Flow Routing choice Available Choices: [0] Deterministic 8 [1] Rho 8 [2] Braunschweiger Reliefmodell [3] Deterministic Infinity [4] Multiple Flow Direction [5] Multiple Triangular Flow Direction [6] Multiple Maximum Downslope Gradient Based Flow Direction Default: 0