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A flooding algorithm for extracting drainage networks from unprocessed digital elevation models
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DOI：10.1016/j.cageo.2013.06.001.png)
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Abstract
En 中文
A new method for extracting the drainage network from a digital elevation model (DEM) is presented. It is based on the well-known D8 approach that simulates the overland flow but uses a more elaborate water transfer model that is inspired by the natural behaviour of water. The proposed solution has several advantages: it works on unprocessed DEMs avoiding the problems caused by pits and flats, can generate watercourses with a width greater than one cell and detects fluvial landforms like lakes, marshes or river islands that are not directly handled by Most previous solutions. (C) 2013 Elsevier Ltd. All rights reserved.
Keywords:
Drainage networks
Overland flow algorithms
Digital elevation models
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