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Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Nutrient Application (Phosphorus and Nitrogen) for Fertilizer and Manure Applied to Crops (Cropsplit), 2002

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: Nutrient Application (Phosphorus and Nitrogen) for Fertilizer and Manure Applied to Crops (Cropsplit), 2002: U.S. Geological Survey data release, https://doi.org/10.5066/P9A7ZHKQ.

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 amount of phosphorus and nitrogen fertilizers applied to selected crops for the year 2002, compiled for every MRB_E2RF1 catchment of Major River Basins (MRBs, Crawford and others, 2006). The source data set is based on 2002 fertilizer data (Ruddy and others, 2006) and tabulated by crop type per county (Alexander and others, 2007). The MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental [...]

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Attached Files

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mrb_e2rf1_cropsplit_mrb1.zip 421.1 KB application/zip
mrb_e2rf1_cropsplit_mrb2.zip 874.4 KB application/zip
mrb_e2rf1_cropsplit_mrb3.zip 1.19 MB application/zip
mrb_e2rf1_cropsplit_mrb4.zip 1.11 MB application/zip
mrb_e2rf1_cropsplit_mrb5.zip 845.97 KB application/zip
mrb_e2rf1_cropsplit_mrb6.zip 322.96 KB application/zip
mrb_e2rf1_cropsplit_mrb7.zip 695.43 KB application/zip
mrb_e2rf1_cropsplit_mrb8.zip 154.29 KB application/zip
mrb_e2rf1_cropsplit.jpg thumbnail 824.63 KB image/jpeg

Purpose

This tabular data set was created and used by the U.S. Geological Survey (USGS) specifically to estimate the amount of phosphorus and nitrogen in fertilizers and manureapplied to selected crops for the 2002 time period 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/P9A7ZHKQ

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