@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/4a3761ed-76db-49d4-923e-6ac5abb91968> a dcat:Dataset ;
    dct:description "The U.S. Geological Survey's (USGS) SPAtially Referenced Regression On Watershed attributes (SPARROW) model was used to aid in the interpretation of monitoring data and simulate streamflow and water-quality conditions in streams across the Southwestern Region of the Unites States. SPARROW is a hybrid empirical/process-based mass balance model that can be used to estimate the major sources and environmental factors that affect the long-term supply, transport, and fate of contaminants in streams. The spatially explicit model structure is defined by a river reach network coupled with contributing catchments. The model is calibrated by statistically relating watershed sources and transport-related properties to monitoring-based water-quality load estimates. This USGS data release includes input and output files associated with 2012 SPARROW simulations of streamflow, total nitrogen, total phosphorus and suspended-sediment load in streams of the Southwestern region. Model construction, calibration and results are described in Wise, Anning, and Miller (2019, https://doi.org/10.3133/sir20195106." ;
    dct:identifier "USGS:5f8f1f1282ce06b040efc90e" ;
    dct:issued "2025-11-21T11:53:52.071268"^^xsd:dateTime ;
    dct:modified "20201028"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-121.6000 25.4240, -121.6000 44.3020, -93.1320 44.3020, -93.1320 25.4240, -121.6000 25.4240))"^^gsp:wktLiteral ] ;
    dct:title "SPARROW model inputs and simulated streamflow, nutrient and suspended-sediment loads in streams of the Southwestern United States, 2012 Base Year" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Olivia L Miller" ;
            vcard:hasEmail <mailto:omiller@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/4a3761ed-76db-49d4-923e-6ac5abb91968/resource/340d6421-2071-4261-b0aa-e7412d2c1667>,
        <https://data.amerigeoss.org/dataset/4a3761ed-76db-49d4-923e-6ac5abb91968/resource/b63b626b-8629-48bd-b829-733771e1327f> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "arizona",
        "california",
        "ckan",
        "colorado",
        "geo",
        "geoss",
        "idaho",
        "louisiana",
        "national",
        "nevada",
        "new-mexico",
        "north-america",
        "nutrient-loads",
        "oregon",
        "spatial-analysis",
        "spatially-referenced-regressions-on-watershed-attributes-sparrow",
        "statistical-analysis",
        "streamflow",
        "surface-water-quality",
        "suspended-sediment-loads",
        "texas",
        "united-states",
        "usgs-5f8f1f1282ce06b040efc90e",
        "utah",
        "wyoming" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/4a3761ed-76db-49d4-923e-6ac5abb91968/resource/340d6421-2071-4261-b0aa-e7412d2c1667> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-08-06T20:41:05.067615"^^xsd:dateTime ;
    dct:modified "2025-11-21T11:53:52.057247"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.5f8f1f1282ce06b040efc90e.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/dataset/4a3761ed-76db-49d4-923e-6ac5abb91968/resource/b63b626b-8629-48bd-b829-733771e1327f> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-08-06T20:41:05.067621"^^xsd:dateTime ;
    dct:modified "2025-11-21T11:53:52.057680"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P94EKLPP> ;
    dcat:mediaType "application/http" .

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