This tool removes creek sinks by digging a flowpath to a lower located cell.
The user must specify:
The name of the digital elevation model (DEM) to be corrected.
The name of a streamheads raster. For the creation of the streamheads raster, the Find Streamheads tool could be used.
The name of the corrected output DEM.
The name of the output raster containing the elevation modification values.
The maximum radius around a creek cell to search for a downslope cell.
The Remove Creek Sinks tool searches a flowpath for each of the streamhead cells. In principle, the D8 method is used. However, when a creek sink has been reached, the tool switches to the digging algorithm. A path to a cell with a lower elevation is digged out. The path is chosen based on the criteria that the least possible amount of soil should be removed.
Grid cells possessing the NoData value in the input DEM are assigned the NoData value in the output corrected DEM. The output rasters are of the float data type and continuous data scale.