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  1. Water Mission Area National Spatial Data Infrastructure Datasets
  2. Estimated mean annual natural ground-water recharge in the conterminous United States

Estimated mean annual natural ground-water recharge in the conterminous United States

Dates

Release Date
2003-01-01
Start Date
1951
End Date
1980
Publication Date

Citation

Wolock, D.M., 2003, Estimated mean annual natural ground-water recharge in the conterminous United States: U.S. Geological Survey data release, https://doi.org/10.5066/P9FSSVF3.

Summary

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This 1-kilometer resolution raster (grid) dataset is an index of mean annual natural ground-water recharge. The dataset was created by multiplying a grid of base-flow index (BFI) values by a grid of mean annual runoff values derived from a 1951-80 mean annual runoff contour map. Mean annual runoff is long-term average streamflow expressed on a per-unit-area basis. The concept used to construct the dataset is based on two assumptions: (1) long-term average [...]

Contacts

Point of Contact :
David M. Wolock, U.S. Geological Survey
Originator :
David M. Wolock
Metadata Contact :
U.S. Geological Survey
SDC Data Owner :
Integrated Modeling & Prediction Division
USGS Mission Area :
Water Resources

Attached Files

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rech48grd.xml
Original FGDC Metadata
View 		26.31 KB application/fgdc+xml
rech48grd.zip 3.46 MB application/zip
rech48grd.tgz 2.89 MB application/x-gzip
rech48grd.tz 2.89 MB application/x-gzip
reach48grd.jpg thumbnail 36.58 KB image/jpeg

Purpose

The mean annual natural ground-water recharge grid was developed for use in the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program (Gilliom and others, 1995). The dataset was produced to help NAWQA national synthesis teams interpret relations between land use and water quality in ground water. Purpose References: Gilliom, R.J., Alley, W.M., and Gurtz, M.E., 1995, Design of the National Water-Quality Monitoring Program-- occurrence and distribution of water-quality conditions: U.S. Geological Survey Circular 1112, 33 p., available on the World Wide Web, accessed July 7, 2003, at URL http://water.usgs.gov/pubs/circ/circ1112/
Graphic representative of the estimated mean annual natural groundwater recharge in the conterminous United States.
Graphic representative of the estimated mean annual natural groundwater recharge in the conterminous United States.

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Communities

  • Model Data Management Function (MDMF)

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Provenance

These data were originally released on the Water Mission Area National Spatial Data Infrastructure Node and were migrated to sciencebase.gov in 2023. These data were released prior to the October 1, 2016 effective date for the USGS's policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9FSSVF3

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