Module Channel Network and Drainage Basins
Deterministic 8 based flow network analysis
- Author: O.Conrad (c) 2003
- Specification: grid
- Menu: Terrain Analysis|Channels
Parameters
| Name | Type | Identifier | Description | Constraints | |
|---|---|---|---|---|---|
| Input | Elevation | Grid (input) | DEM | - | - |
| Output | Flow Direction (*) | Grid (optional output) | DIRECTION | - | - |
| Flow Connectivity (*) | Grid (optional output) | CONNECTION | - | - | |
| Strahler Order (*) | Grid (optional output) | ORDER | - | - | |
| Drainage Basins (*) | Grid (optional output) | BASIN | - | - | |
| Channels | Shapes (output) | SEGMENTS | - | - | |
| Drainage Basins | Shapes (output) | BASINS | - | - | |
| Junctions (*) | Shapes (optional output) | NODES | - | - | |
| Options | Threshold | Integer | THRESHOLD | Strahler order to begin a channel. | Minimum: 1 Default: 5 |
| (*) optional | |||||
Command-line
Usage: saga_cmd ta_channels 5 [-DEM <str>] [-DIRECTION <str>] [-CONNECTION <str>] [-ORDER <str>] [-BASIN <str>] [-SEGMENTS <str>] [-BASINS <str>] [-NODES <str>] [-THRESHOLD <num>] -DEM:<str> Elevation Grid (input) -DIRECTION:<str> Flow Direction Grid (optional output) -CONNECTION:<str> Flow Connectivity Grid (optional output) -ORDER:<str> Strahler Order Grid (optional output) -BASIN:<str> Drainage Basins Grid (optional output) -SEGMENTS:<str> Channels Shapes (output) -BASINS:<str> Drainage Basins Shapes (output) -NODES:<str> Junctions Shapes (optional output) -THRESHOLD:<num> Threshold Integer Minimum: 1 Default: 5