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  1. Water Mission Area National Spatial Data Infrastructure Datasets
  2. Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Base-Flow Index

Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Base-Flow Index

Dates

Release Date
2010-01-01
Publication Date

Citation

Wieczorek, M.E. and LaMotte, A.E., 2010, Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Base-Flow Index: U.S. Geological Survey data release, https://doi.org/10.5066/P90UZ0GS.

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 tabular data set represents the mean base-flow index expressed as a percent, compiled for every catchment in NHDPlus for the conterminous United States. Base flow is the component of streamflow that can be attributed to ground-water discharge into streams. The source data set is Base-Flow Index for the Conterminous United States (Wolock, 2003). The NHDPlus Version 1.1 is an integrated suite of application-ready geospatial datasets that incorporates [...]

Contacts

Point of Contact :
Michael E. Wieczorek, US Geological Survey, Maryland Water Science Center
Originator :
Michael E. Wieczorek, Andrew E. LaMotte
Metadata Contact :
U.S. Geological Survey
SDC Data Owner :
Maryland-Delaware-D.C. Water Science Center
USGS Mission Area :
Water Resources

Attached Files

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nhd_bfi.xml
Original FGDC Metadata
View 		36.67 KB application/fgdc+xml
nhd_bfi_mrb1.zip 1.73 MB application/zip
nhd_bfi_mrb2.zip 4.33 MB application/zip
nhd_bfi_mrb3.zip 5.41 MB application/zip
nhd_bfi_mrb4.zip 4.93 MB application/zip
nhd_bfi_mrb5.zip 4.41 MB application/zip
nhd_bfi_mrb6.zip 3.7 MB application/zip
nhd_bfi_mrb7.zip 2.63 MB application/zip
nhd_bfi_mrb8.zip 1.59 MB application/zip
nhd_bfi.jpg thumbnail 40.78 KB image/jpeg

Purpose

This spatial data set was created and used by the U.S. Geological Survey (USGS) specifically to estimate the base-flow index 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

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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/P90UZ0GS

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