{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Christopher A. Mason", "hasEmail": "mailto:camason@usgs.gov"}, "description": "Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal Network (NTN) stations for the period 1985 through 2020. 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).  The load results represent the total mass of nitrogen, phosphorus, and suspended sediment that was exported from each of the NTN watersheds. The files containing all outputs generated by WRTDS for all applicable NTN monitoring stations are provided in the \"Attached Files\" section.\nFirst posted: July 25, 2022 (available from author)\nRevised: January 2023 (version 2.0)", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P96H2BDO", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.62c5a1c6d34eeb1417bafd59.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_62c5a1c6d34eeb1417bafd59", "keyword": ["Chesapeake Bay Watershed", "Delaware", "Kalman filtering", "Maryland", "New York", "Pennsylvania", "USGS:62c5a1c6d34eeb1417bafd59", "United States", "Virginia", "WRTDS", "WRTDS-Kalman", "Washington DC", "West Virginia", "load analysis", "nitrogen", "nutrients", "phosphorus", "rivers", "suspended sediment", "trends", "water quality", "weighted regression"], "modified": "2023-01-06T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-79.167480469182, 36.208470061656, -74.904785156852, 42.714410712674", "theme": ["geospatial"], "title": "Chesapeake Bay Nontidal Network 1985-2020: WRTDS output data (ver. 2.0, January 2023)"}