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  1. Water Mission Area National Spatial Data Infrastructure Datasets
  2. Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Level 3 Ecoregions

Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Level 3 Ecoregions

Dates

Release Date
2010-01-01
Publication Date

Citation

Wieczorek, M.E. and LaMotte, A.E., 2010, Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Level 3 Ecoregions: U.S. Geological Survey data release, https://doi.org/10.5066/P9FZUUD8.

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 estimated area of level 3 ecological landscape regions (ecoregions), as defined by Omernik (1987), compiled for every MRB_E2RF1 catchment of the Major River Basins (MRBs, Crawford and others, 2006). The source data set is Level III Ecoregions of the Continental United States (U.S. Environmental Protection Agency, 2003). The MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental Protection [...]

Contacts

Point of Contact :
Michael E. Wieczorek, U.S. Geological Survey
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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mrb_e2rf1_eco3.xml
Original FGDC Metadata
View 		51.43 KB application/fgdc+xml
mrb_e2rf1_eco3_mrb1.zip 115.25 KB application/zip
mrb_e2rf1_eco3_mrb2.zip 186.67 KB application/zip
mrb_e2rf1_eco3_mrb3.zip 256.37 KB application/zip
mrb_e2rf1_eco3_mrb4.zip 273.57 KB application/zip
mrb_e2rf1_eco3_mrb5.zip 192.01 KB application/zip
mrb_e2rf1_eco3_mrb6.zip 125.09 KB application/zip
mrb_e2rf1_eco3_mrb7.zip 265.13 KB application/zip
mrb_e2rf1_eco3_mrb8.zip 60.28 KB application/zip
mrb_e2rf1_eco3.jpg thumbnail 65.07 KB image/jpeg

Purpose

This tabular data set was created and used by the U.S. Geological Survey (USGS) specifically to estimate the area of each level 3 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.
Illlustration of data set
Illlustration of data set

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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/P9FZUUD8

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