Channel Network and Drainage Basins
- Author: O.Conrad (c) 2003
- Menu: Terrain Analysis | Channels
Description
Deterministic 8 based flow network analysis.
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 number | THRESHOLD | Strahler order to begin a channel. | Minimum: 1
Default: 5 |
| Subbasins | boolean | SUBBASINS | - | Default: 1 |
Command Line
Usage: saga_cmd ta_channels 5 [-DEM ] [-DIRECTION ] [-CONNECTION ] [-ORDER ] [-BASIN ] [-SEGMENTS ] [-BASINS ] [-NODES ] [-THRESHOLD ] [-SUBBASINS ]
-DEM: Elevation
grid, input
-DIRECTION: Flow Direction
grid, output, optional
-CONNECTION: Flow Connectivity
grid, output, optional
-ORDER: Strahler Order
grid, output, optional
-BASIN: Drainage Basins
grid, output, optional
-SEGMENTS: Channels
shapes, output
-BASINS: Drainage Basins
shapes, output
-NODES: Junctions
shapes, output, optional
-THRESHOLD: Threshold
integer number
Minimum: 1
Default: 5
-SUBBASINS: Subbasins
boolean
Default: 1