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Datasets and metadata for estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology

Dates

Publication Date
Start Date
1914-01-01
End Date
2013-01-01

Citation

Terziotti, Silvia, and Hopple, J.A., 2018, Datasets and metadata for estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology: U.S. Geological Survey data release, https://doi.org/10.5066/F79G5KP4.

Summary

This USGS data release contains datasets, metadata, and figures associated with estimating nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology. There are three shapefiles with associated metadata and figures representing the shapefiles: • Catchments_GWcontribN.shp: NHDPlus catchment estimates of groundwater contribution of nitrate to streams in the Chesapeake Bay watershed • HUC12_GWcontribN.shp: HUC 12 estimates of groundwater contribution of nitrate to streams in the Chesapeake Bay watershed • Sites_GWcontribN.shp: Sites with baseflow measurements for nitrate plus nitrite within the Chesapeake Bay watershed These data support the following publication: • Terziotti, [...]

Contacts

Attached Files

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Catchment.jpg
“NHDPlus catchment estimates of groundwater contribution of nitrate to streams”
thumbnail 751.89 KB
HUC12.jpg
“HUC 12 estimates of groundwater contribution of nitrate to streams”
thumbnail 838.71 KB
Sites.jpg
“Sites with baseflow measurements for nitrate plus nitrite”
thumbnail 1.72 MB
Catchments_GWcontribN.shp.zip
“NHDPlus catchment estimates of groundwater contribution of nitrate to streams”
119.55 MB
HUC12_GWcontribN.zip
“HUC 12 estimates of groundwater contribution of nitrate to streams”
19.07 MB
Sites_GWcontribN.zip
“Sites with baseflow measurements for nitrate plus nitrite”
116.42 KB
Estimates_of_nitrate_loads_and yields_from_groundwater_overview.xml
“Metadata file”
Original FGDC Metadata

View
14.62 KB

Purpose

The datasets were created to quantify the concentration, load and yield of nitrate in groundwater and estimate a stream segment’s nitrate concentration in baseflow across the Chesapeake Bay watershed. This resulted in a geospatial data layer of the estimated annual loads and yields of nitrate from groundwater to streams. This approach can be reproduced for other areas of the country if there are sufficient observations of nitrate concentrations in streams at baseflow.
Sites with baseflow measurements for nitrate plus nitrite
Sites with baseflow measurements for nitrate plus nitrite

Map

Communities

  • Integrated Watershed Studies Team
  • National Water-Quality Assessment Project
  • USGS Data Release Products

Tags

Provenance

Data source
Input directly

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F79G5KP4

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