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How to fill a 3D space with a given volume

Question asked by kscroope on Jan 25, 2017
Latest reply on Jan 25, 2017 by

I'm trying to compare what areas flood in different storm events. I have a DEM (can create a TIN if needed), and I have specific runoff volumes from different storm events. I want to see the differences in spatial area that would collect  water for different storm events. So far I can't seem to find a tool where I can enter a specific quantity, and have GIS show me where and to what extent that volume would be accumulated. Any advice would be appreciated.