Skip to main content

Attributes for NHDPlus Catchments (Version 1.1) in the Conterminous United States: Bedrock Geology

Dates

Release Date
2010-01-01
Publication Date

Citation

Wieczorek, M.E. and LaMotte, A.E., 2010, Attributes for NHDPlus Catchments (Version 1.1) in the Conterminous United States: Bedrock Geology: U.S. Geological Survey data release, https://doi.org/10.5066/P9MHI05D.

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 the area of bedrock geology types in square meters compiled for every catchment of NHDPlus for the conterminous United States. The source data set is the "Geology of the Conterminous United States at 1:2,500,000 Scale--A Digital Representation of the 1974 P.B. King and H.M. Beikman Map" (Schuben and others, 1994). The NHDPlus Version 1.1 is an integrated suite of application-ready geospatial datasets that incorporates many of [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

nhd_bgeol_mrb1.zip 5.16 MB application/zip
nhd_bgeol_mrb2.zip 11.92 MB application/zip
nhd_bgeol_mrb3.zip 12.73 MB application/zip
nhd_bgeol_mrb4.zip 11.69 MB application/zip
nhd_bgeol_mrb5.zip 10.56 MB application/zip
nhd_bgeol_mrb6.zip 9.26 MB application/zip
nhd_bgeol_mrb7.zip 6.36 MB application/zip
nhd_bgeol_mrb8.zip 3.8 MB application/zip
nhd_bgeol.jpg thumbnail 114.11 KB image/jpeg

Purpose

This spatial data set was created and used by the U.S. Geological Survey (USGS) specifically to estimate bedrock geology per watershed segment in the application of the national SPAtially Referenced Regression On Watershed attributes (SPARROW) model . The SPARROW model relates in-stream water-quality measurements to spatially referenced characteristics of watersheds, including contaminant sources and factors influencing terrestrial and stream transport. The model empirically estimates the origin and fate of contaminants in streams, and quantifies uncertainties in these estimates based on model coefficient error and unexplained variability in the observed data. For more information on the USGS SPARROW model please refer to: https://water.usgs.gov/nawqa/sparrow/intro/intro.html.
Illustration of the dataset
Illustration of the dataset

Map

Communities

  • Model Data Management Function (MDMF)

Tags

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/P9MHI05D

Item Actions

View Item as ...

Save Item as ...

View Item...