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Thematic GIS Data Sets for Water Resources
Many USGS studies of water resources have used a Geographic Information
System (GIS) to produce digital geospatial data sets for a wide variety
of water topics. Themes include basic hydrologic data as well as ancillary
data to support hydrologic studies.
National Coverages
- Benchmark Stations
- Climate Divisions
- Ecoregions
- Herbicide use estimates for the
top 20,
21st to 40th,
41st to 60th,
61st to 80th, and
81st to 96th most used herbicides
- Hydro-Climatic Data Network
(HCDN): A USGS streamflow data set for the United States
for the study of climate fluctuations, 1874-1988
- Hydrologic Cataloging Units:
1:2,000,000 or
1:250,000
- Land Use
- National Stream Quality Accounting Network (NASQAN) Sites
- Nitrogen-fertilizer sales for
1985,
1986,
1987,
1988,
1989,
1990, and
1991
- Reservoirs
- Runoff, 1951-80
- Streamflow Basin Characteristics
- Streams
- 1987 Census of Agriculture Data on:
Chemical Use,
Cropping Practices Part 1,
Cropping Practices Part 2,
Expenses,
Land, and
Livestock
National Water Quality Assessment (NAWQA) Program Coverages
Selected Regional and Local Data Sets
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