ETG_FillDepressions

Fill Depressions

Fills all depressions in a DEM raster and removes flat areas producing a "Depressionless" DEM.

A raster representing a Depressionless DEM in which the flow can be determined for every inner cell and all outlets are at the DEM boundary (or next to NoData areas).

The Fill Depressions function is based on the algorithm proposed by Planchon and Darboux (2001).
See Hydrological functions for more information on the hydrological functionality.
The input format accepted are file based rasters - ERDAS IMAGINE or Tagged Image File Format (TIFF).
The .NET ToolBox for ArcGIS Desktop accepts also FileGDB Raster inputs.
For file based rasters initially the name of the output raster define the raster format:
- .img extension (for example raster1.img) - ERDAS IMAGINE image.
- .tif extension (for example raster1.tif - image.
- The initial output raster format can be changed by selecting the desired output in the dialog.

Parameters

Expression	Explanation
Function Name	FillDepressions
<input raster>	A String representing the input DEM raster dataset.
<output raster>	A String - the full name of the output raster.

ETSPath used in the table below is the full path to ETSRun.exe (E.G. "C:\Program Files\ETSpatial Techniques\ETSurface\ETSRun.exe")

UnitsDegrees

Language	Syntax
Python	subprocess.call([ETSPath, "FillDepressions", "input raster", "output raster"])
.NET using ETSRun.exe	StartInfo.FileName = ETSPath StartInfo.Arguments = "FillDepressions" "input raster" "output raster"
.NET using ETSOutX.dll	FillDepressions(input raster, output raster)
ArcPy	arcpy.FillDepressions("input raster", "output raster")

Notes:

<> - required parameter
{} - optional parameter
See examples for Python , .NET or ArcPy
The argument separator for StartInfo.Arguments is space. If a string might contain a space, you need to double quote it.