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Results tagged with nhd
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user 18139
For questions about the National Hydrology Dataset (NHD) by the US Geological Survey (USGS)
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create table with IDs for all arcs downstream of all others
I need to summarize downstream information associated with each arc in an NHD dataset. I have a table with the downstream ID for stream segment but am not sure how to get all of the downstream IDs. …
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