Module Channel Network and Drainage Basins
Deterministic 8 based flow network analysis
- Author: O.Conrad (c) 2003
- 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 | Grid system | Grid system | PARAMETERS_GRID_SYSTEM | Grid system | - |
| 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