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The National Water Availability Assessment Data Companion (NWDC) provides nationally-consistent modeled water data, including the surface water supply and use index (SUI), which is an indication of water limitation across the lower 48 United States. In this blog, we demonstrate how to programmatically download data from the Data Companion using R and API web services, process the data for mapping, and create customized data visualizations.
The National Water Availability Assessment Data Companion provides a centralized source for national water availability data, including quantity, quality, and use across approximately 80,000 sub-watersheds nationwide.
