Tool 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, output, optional | DIRECTION | - | - |
| Flow Connectivity (*) | Grid, output, optional | CONNECTION | - | - |
| Strahler Order (*) | Grid, output, optional | ORDER | - | - |
| Drainage Basins (*) | Grid, output, optional | BASIN | - | - |
| Channels | Shapes, output | SEGMENTS | - | - |
| Drainage Basins | Shapes, output | BASINS | - | - |
| Junctions (*) | Shapes, output, optional | NODES | - | - |
| Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Threshold | Integer | THRESHOLD | Strahler order to begin a channel. | Minimum: 1
Default: 5 |
| Subbasins | Boolean | SUBBASINS | - | Default: 1 |
| (*) 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>] [-SUBBASINS <str>]
-DEM:<str> Elevation
Grid, input
-DIRECTION:<str> Flow Direction
Grid, output, optional
-CONNECTION:<str> Flow Connectivity
Grid, output, optional
-ORDER:<str> Strahler Order
Grid, output, optional
-BASIN:<str> Drainage Basins
Grid, output, optional
-SEGMENTS:<str> Channels
Shapes, output
-BASINS:<str> Drainage Basins
Shapes, output
-NODES:<str> Junctions
Shapes, output, optional
-THRESHOLD:<num> Threshold
Integer
Minimum: 1
Default: 5
-SUBBASINS:<str> Subbasins
Boolean
Default: 1