Skip to main content

Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Nutrient Inputs from Fertilizer and Manure, Nitrogen and Phosphorus (N&P), 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) for the Conterminous United States: Nutrient Inputs from Fertilizer and Manure, Nitrogen and Phosphorus (N&P), 2002: U.S. Geological Survey data release, https://doi.org/10.5066/P9ZJOLFF.

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 estimated amount of nitrogen and phosphorus in kilograms for the year 2002, compiled for every catchment of NHDPlus for the conterminous United States. The source data set is County-Level Estimates of Nutrient Inputs to the Land Surface of the Conterminous United States, 1982-2001 (Ruddy and others, 2006). The NHDPlus Version 1.1 is an integrated suite of application-ready geospatial datasets that incorporates many of the [...]

Contacts

Attached Files

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

nhd_nutrients_mrb1.zip 3.72 MB application/zip
nhd_nutrients_mrb2.zip 8.66 MB application/zip
nhd_nutrients_mrb3.zip 12.2 MB application/zip
nhd_nutrients_mrb4.zip 10.42 MB application/zip
nhd_nutrients_mrb5.zip 8.77 MB application/zip
nhd_nutrients_mrb6.zip 2.83 MB application/zip
nhd_nutrients_mrb7.zip 2.9 MB application/zip
nhd_nutrients_mrb8.zip 1.68 MB application/zip
nhd_nutrients_mrb.jpg thumbnail 47.6 KB image/jpeg

Purpose

This spatial data set was created and used by the U.S. Geological Survey (USGS) specifically to estimate nitrogen and phosphorus inputs from manure and fertilizer 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 Inputs from Fertilizer and Manure, Nitrogen and Phosphorus (N&P), 2002 overlain on Major River Basins.
Nutrient Inputs from Fertilizer and Manure, Nitrogen and Phosphorus (N&P), 2002 overlain on Major River Basins.

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/P9ZJOLFF

Item Actions

View Item as ...

Save Item as ...

View Item...