Official websites use .gov
A .gov website belongs to an official government organization in the
United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share
sensitive information only on official, secure websites.
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.
Plotting hydrography data has never been easier with the latest versions of nhdplusTools and ggplot2. This blog demonstrates how to fetch and map National Hydrography Dataset (NHD) rivers and waterbodies with several reproducible examples.
