Chesapeake Bay Nontidal Network 1985-2023: Annual loads
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed were calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2023. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). Load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the NTN watersheds by year. The file containing annual actual and flow-normalized loads for all applicable NTN monitoring stations is provided in the "Attached Files" section.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "010:12" ] |
| contactPoint |
{ "fn": "Christopher A. Mason", "@type": "vcard:Contact", "hasEmail": "mailto:camason@usgs.gov" } |
| description | Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed were calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2023. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression approach called WRTDS (Weighted Regression on Time, Discharge, and Season). Load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the NTN watersheds by year. The file containing annual actual and flow-normalized loads for all applicable NTN monitoring stations is provided in the "Attached Files" section. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Digital Data", "format": "XML", "accessURL": "https://doi.org/10.5066/P13P4TWR", "mediaType": "application/http", "description": "Landing page for access to the data" }, { "@type": "dcat:Distribution", "title": "Original Metadata", "format": "XML", "mediaType": "text/xml", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.67af58e6d34e5020fb91f071.xml" } ] |
| identifier | http://datainventory.doi.gov/id/dataset/USGS_67af58e6d34e5020fb91f071 |
| keyword |
[ "Chesapeake Bay Watershed", "Delaware", "Kalman filtering", "Maryland", "New York", "Pennsylvania", "USGS:67af58e6d34e5020fb91f071", "United States", "Virginia", "WRTDS", "WRTDS-Kalman", "Washington DC", "West Virginia", "load analysis", "nitrogen", "nutrients", "phosphorus", "rivers", "suspended sediment", "trends", "water quality", "weighted regression" ] |
| modified | 2025-03-13T00:00:00Z |
| publisher |
{ "name": "U.S. Geological Survey", "@type": "org:Organization" } |
| spatial | -79.167480469182, 36.208470061656, -74.904785156852, 42.714410712674 |
| theme |
[ "geospatial" ] |
| title | Chesapeake Bay Nontidal Network 1985-2023: Annual loads |
