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  1. Water Mission Area National Spatial Data Infrastructure Datasets
  2. 1990 population density by block group for the conterminous United States

1990 population density by block group for the conterminous United States

Dates

Release Date
2003-11-24
Publication Date

Citation

Price, C., 2003, 1990 population density by block group for the conterminous United States: U.S. Geological Survey data release, https://doi.org/10.5066/P97XQWSD.

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 data set represents 1990 population density by block group as a 100-m grid using data from the 1990 Census of Population and Housing (Public Law 94-171 redistricting data). Grid cell values represent population density in people per square kilometer multiplied by 10 so that the data could be stored as integer.

Contacts

Originator :
Curtis Price
Metadata Contact :
U.S. Geological Survey
SDC Data Owner :
Dakota Water Science Center
USGS Mission Area :
Water Resources

Attached Files

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uspopd90x10g.xml
Original FGDC Metadata
View 		18.77 KB application/fgdc+xml
uspopd90x10g.tgz 22 MB application/x-gzip
uspopd90x10ne.txt.gz 13.98 MB application/x-gzip
uspopd90x10nw.txt.gz 6.76 MB application/x-gzip
uspopd90x10se.txt.gz 16.5 MB application/x-gzip
uspopd90x10sw.txt.gz 6.64 MB application/x-gzip
uspopd90x10g.gif thumbnail 27.51 KB image/gif

Purpose

This is one of the ancillary GIS data layers developed to characterize USGS National Water-Quality Assessment (NAWQA), URL:http://water.usgs.gov/nawqa/, sampling sites for national synthesis of water-quality data.
28KB GIF image showing overview of 1990 population density data
28KB GIF image showing overview of 1990 population density data

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  • 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/P97XQWSD

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