Script of an Algorithm to Adjust the DEM Derived Stream Slopes in Flat Areas from Terrain Analysis Modeling
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| Resource type: | Composite Resource | |
| Storage: | The size of this resource is 784.0 KB | |
| Created: | Nov 30, 2018 at 6:38 p.m. | |
| Last updated: | Nov 30, 2018 at 7:37 p.m.
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| Citation: | See how to cite this resource |
| Sharing Status: | Public |
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Abstract
This resource includes the code (written in Python 3.6) and the documentation of a technique which is presented for adjusting the slopes of a Digital Elevation Model (DEM) derived drainage network where the slope is zero. The procedure uses the stream river network delineated from the grid-based DEM using Terrain analysis using Digital Elevation Models (TauDEM) software and re-compute the slopes considering the length and slope of all the upstream, downstream, and side entrance reaches. The results of this procedure is that all of the DEM-derived drainage network will have a positive (“downhill”) slope which are constrained to be greater than 0 m/m even when the elevation smoothing process produces equal upstream and downstream elevations on a flow line.
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This resource is shared under the Creative Commons Attribution CC BY.
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