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determine longest flow path for large basin using ArcGIS

thread162-486296

determine longest flow path for large basin using ArcGIS

determine longest flow path for large basin using ArcGIS

(OP)
Hi,

Do any of you know any good plugin or tools for ArcGIS to determine longest flow path for a large basin (500 square miles)?

I tried ArcHydro, which is not reliable? also tried Miscellaneous Hydrology Tools for ArcGIS (https://www.arcgis.com/home/item.html?id=fc7c1ca07...), but is not working for me. I am using ArcMap 10.8.1 with Spatial Analysis extension. Does anybody knows the other tools that will solve the longest flow path problem? Thanks in advance.

RE: determine longest flow path for large basin using ArcGIS

Have you tried using USGS Streamstats? You may be a able to get Streamstats to get you started, its similar to ArcHydro. Again, it all depends on your outfall location. For such a huge area, the watershed should include a tributary/stream/river....which is likely to be delineated in USGS Streamstats.

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