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The U.S. Geological Survey (USGS) collects information needed to understand the Nation's water resources, and provides access to water data, publications, maps, and recent water projects. Water data by state is also included.
NCDC produces numerous climate publications and responds to data requests from all over the world. NCDC supports a three tier national climate services support program - the partners include: NCDC, Regional Climate Centers, and State Climatologists.