Tool Burn Stream Network into DEM
Burns a stream network into a Digital Elevation Model (DEM). Stream cells have to be coded with valid data values, all other cells should be set to no data value. First two methods decrease . The third method ensures a steady downstream gradient. An elevation decrease is only applied, if a downstream cell is equally high or higher. You should provide a grid with flow directions for determination of downstream cells. The 'Sink Drainage Route Detection' tool offers such flow directions.
- Author: O.Conrad (c) 2011
- Menu: Terrain Analysis|Preprocessing
Parameters
| Name | Type | Identifier | Description | Constraints | |
|---|---|---|---|---|---|
| Input | DEM | Grid, input | DEM | - | - |
| Streams | Grid, input | STREAM | - | - | |
| Flow Direction | Grid, input | FLOWDIR | - | - | |
| Output | Processed DEM (*) | Grid, output, optional | BURN | - | - |
| Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Method | Choice | METHOD | - | Available Choices: [0] simply decrease cell's value by epsilon [1] lower cell's value to neighbours minimum value minus epsilon [2] trace stream network downstream Default: 0 | |
| Epsilon | Floating point | EPSILON | - | Minimum: 0.000000 Default: 1.000000 | |
| (*) optional | |||||
Command-line
Usage: saga_cmd ta_preprocessor 6 [-DEM <str>] [-BURN <str>] [-STREAM <str>] [-FLOWDIR <str>] [-METHOD <str>] [-EPSILON <double>] -DEM:<str> DEM Grid, input -BURN:<str> Processed DEM Grid, output, optional -STREAM:<str> Streams Grid, input -FLOWDIR:<str> Flow Direction Grid, input -METHOD:<str> Method Choice Available Choices: [0] simply decrease cell's value by epsilon [1] lower cell's value to neighbours minimum value minus epsilon [2] trace stream network downstream Default: 0 -EPSILON:<double> Epsilon Floating point Minimum: 0.000000 Default: 1.000000