Nitrogen sources to and export from the Chesapeake Bay watershed, 1950 to 2050
This U.S. Geological Survey data release contains datasets that combine past data with future projections of nitrogen sources and nitrogen export to the Chesapeake Bay watershed for the years 1950-2050. To help understand the effect of human and environmental changes over this time period, data for nitrogen sources from wastewater, agricultural fertilizer and manure, and atmospheric deposition are combined with datasets of population and land use. These datasets were used in conjunction with a previously calibrated SPAtially Referenced Regression On Watershed attributes (SPARROW) modeling tool to estimate the mean annual loads of total nitrogen to the Chesapeake Bay and nontidal stream reaches in the watershed at a decadal timestep from 1950-2050. SPARROW model output of incremental and total loads for each reach in the Chesapeake Bay watershed are reported in this data release.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "John Clune",
"@type": "vcard:Contact",
"hasEmail": "mailto:jclune@usgs.gov"
}
|
| description | This U.S. Geological Survey data release contains datasets that combine past data with future projections of nitrogen sources and nitrogen export to the Chesapeake Bay watershed for the years 1950-2050. To help understand the effect of human and environmental changes over this time period, data for nitrogen sources from wastewater, agricultural fertilizer and manure, and atmospheric deposition are combined with datasets of population and land use. These datasets were used in conjunction with a previously calibrated SPAtially Referenced Regression On Watershed attributes (SPARROW) modeling tool to estimate the mean annual loads of total nitrogen to the Chesapeake Bay and nontidal stream reaches in the watershed at a decadal timestep from 1950-2050. SPARROW model output of incremental and total loads for each reach in the Chesapeake Bay watershed are reported in this data release. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P953SO6P",
"mediaType": "application/http",
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{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
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"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5d692bdde4b0c4f70cf173d7.xml"
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|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_5d692bdde4b0c4f70cf173d7 |
| keyword |
[
"Chesapeake",
"Chesapeake Bay watershed",
"Delaware",
"District of Columbia",
"Lower Chesapeake Bay",
"Maryland",
"New York",
"Pennsylvania",
"SPARROW",
"TMDL",
"USGS:5d692bdde4b0c4f70cf173d7",
"Upper Chesapeake Bay",
"Virginia",
"West Virginia",
"agriculture",
"baseflow",
"climate change",
"effects of climate change",
"environment",
"estuary",
"eutrophication",
"evaporation",
"fertilizer",
"geoscientificInformation",
"groundwater",
"groundwater and surface-water interaction",
"groundwater quality",
"land cover change",
"land use change",
"manure",
"mathematical modeling",
"nitrate",
"nitrogen",
"point sources",
"runoff",
"stormwater",
"streamflow",
"surface water",
"surface water (non-marine)",
"surface water quality",
"transpiration",
"urban areas",
"wastewater discharge",
"water quality",
"watershed",
"watershed management"
]
|
| modified | 2022-09-08T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -80.5629, 36.5157, -73.8618, 43.5576 |
| theme |
[
"Geospatial"
]
|
| title | Nitrogen sources to and export from the Chesapeake Bay watershed, 1950 to 2050 |
