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7:24
YouTube
Hans van der Kwast
Calculate time of concentration of a river in QGIS (Kirpich)
This video demonstrates how to calculate the time of concentration for a river using the Kirpich method. The basic equation for SI units is used. These are the steps: 1. Select longest path of a river 2. Dissolve the line segments 3. Find first and last node on river 4. Merge first and last node into one point vector layer 5. Sample elevation ...
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