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  1. Water Mission Area National Spatial Data Infrastructure Datasets
  2. Attributes for NHDPlus Catchments (Version 1.1): Level 3 Nutrient Ecoregions, 2002

Attributes for NHDPlus Catchments (Version 1.1): Level 3 Nutrient Ecoregions, 2002

Dates

Release Date
2010-01-01
Publication Date

Citation

Wieczorek, M.E. and LaMotte, A.E., 2010, Attributes for NHDPlus Catchments (Version 1.1): Level 3 Nutrient Ecoregions, 2002: U.S. Geological Survey data release, https://doi.org/10.5066/P9EP67OW.

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 each level 3 nutrient ecoregion in square meters, compiled for every catchment of NHDPlus for the conterminous United States. The source data are from the 2002 version of the U.S. Environmental Protection Agency's (USEPA) Aggregations of Level III Ecoregions for National Nutrient Assessment & Management Strategy (USEPA, 2002). The NHDPlus Version 1.1 is an integrated suite of application-ready geospatial datasets [...]

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_neco.xml
Original FGDC Metadata
View 		43.63 KB application/fgdc+xml
nhd_neco_mrb1.zip 2.78 MB application/zip
nhd_neco_mrb2.zip 5.59 MB application/zip
nhd_neco_mrb3.zip 5.92 MB application/zip
nhd_neco_mrb4.zip 8.07 MB application/zip
nhd_neco_mrb5.zip 4.96 MB application/zip
nhd_neco_mrb6.zip 4.03 MB application/zip
nhd_neco_mrb7.zip 2.82 MB application/zip
nhd_neco_mrb8.zip 1.7 MB application/zip
nhd_neco.jpg thumbnail 75.81 KB image/jpeg

Purpose

This spatial data set was created and used by the U.S. Geological Survey (USGS) specifically to estimate the area of each level 3 nutrient ecoregion 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.
Nutrient Ecoregions overlain on Major River basins.
Nutrient Ecoregions overlain on Major River basins.

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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/P9EP67OW

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