@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/29d79e02-3484-41fb-b61a-037d619fa8b5> a dcat:Dataset ;
    dct:description "Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in 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 2014. 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.  To determine the trend in loads, the annual load results are flow normalized to integrate out the year-to-year variability in river discharge.  The trend in load is derived from the flow-normalized load timeseries and represents the change in load resulting from changes in sources, delays associated with storage or transport of historical inputs, and (or) implemented management actions." ;
    dct:identifier <http://datainventory.doi.gov/id/dataset/usgs-59d4e4d1e4b05fe04cc532d1> ;
    dct:issued "2025-09-24T17:48:44.706086"^^xsd:dateTime ;
    dct:modified "2020-08-27T00:00:00+00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-79.1675 36.2085, -79.1675 42.7144, -74.9048 42.7144, -74.9048 36.2085, -79.1675 36.2085))"^^gsp:wktLiteral ] ;
    dct:title "Chesapeake Bay Nontidal Network 1985-2014: WRTDS Output Data" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Douglas L. Moyer" ;
            vcard:hasEmail <mailto:dlmoyer@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/29d79e02-3484-41fb-b61a-037d619fa8b5/resource/473ec295-4d29-4970-92c4-823514e593a0> ;
    dcat:keyword "AmeriGEO",
        "AmeriGEOSS",
        "CKAN",
        "GEO",
        "GEOSS",
        "National",
        "North America",
        "United States",
        "load-analysis",
        "nitrogen",
        "nutrient-content",
        "phosphorus",
        "suspended-sediment",
        "usgs-59d4e4d1e4b05fe04cc532d1",
        "water-quality",
        "wrtds" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/29d79e02-3484-41fb-b61a-037d619fa8b5/resource/473ec295-4d29-4970-92c4-823514e593a0> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2025-09-12T16:56:54.104921"^^xsd:dateTime ;
    dct:modified "2025-09-24T17:48:44.681906"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/F7XK8D2R> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .