Burn Streams And Fill Depressions¶
Summary¶
Compute flow direction raster, using a variant of Wang and Liu priority flood algorithm that processes stream cell in before other cells.
References¶
[1] Lindsay, J. B. (2016). The Practice of DEM Stream Burning Revisited. Earth Surface Processes and Landforms, 41(5), 658‑668. https://doi.org/10.1002/esp.3888
[2] WhiteboxGAT Java implementation (Last modified 2 Oct 2017) https://github.com/jblindsay/whitebox-geospatial-analysis-tools/blob/038b9c7/resources/plugins/Scripts/TopologicalBreachBurn.groovy
Tags:depression filling, sink, flat, preprocessing, dem
Usage¶
No Description Yet.
Parameters¶
| Parameter | Description | Type |
|---|---|---|
Elevations
ELEVATIONS
|
QgsProcessingParameterRasterLayer | |
Stream LineString
STREAMS
|
QgsProcessingParameterFeatureSource | |
Stream Primary Key
PK_FIELD
|
Default value: GID
|
QgsProcessingParameterField |
Minimum Z Delta Between Cells
ZDELTA
|
Default value: 0.0005
|
QgsProcessingParameterNumber |
Flow Direction
OUTPUT
|
QgsProcessingParameterRasterDestination | |
Depression-Filled DEM
FILLED
(Optional)
|
QgsProcessingParameterRasterDestination |