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Script of an Algorithm to Adjust the DEM Derived Stream Slopes in Flat Areas from Terrain Analysis Modeling


Authors: Irene Garousi-Nejad David Tarboton
Owners: David Tarboton Irene Garousi-Nejad
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. by Irene Garousi-Nejad
Citation: See how to cite this resource
Sharing Status: Public
Views: 98
Downloads: 10
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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.

Content

This resource belongs to the following collections:
Title Owners Sharing Status My Permission
Terrain Analysis Enhancements to the Height Above Nearest Drainage Flood Inundation Mapping Method David Tarboton · Irene Garousi-Nejad  Private &  Shareable None

How to Cite

Garousi-Nejad, I., D. Tarboton (2018). Script of an Algorithm to Adjust the DEM Derived Stream Slopes in Flat Areas from Terrain Analysis Modeling, HydroShare, http://www.hydroshare.org/resource/4cfd2507de254ece86de1285092dec29

This resource is shared under the Creative Commons Attribution CC BY.

 http://creativecommons.org/licenses/by/4.0/
CC-BY

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