@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/7eeca944-2279-45bc-a891-c716913d37ab> a dcat:Dataset ;
    dct:description """This data release contains values of 29 streamflow statistics computed from modeled and observed daily streamflows from October 1, 1983, through September 30, 2016 at 1,257 streamgages in the 19 study regions defined by Falcone (2011) covering the conterminous United States. The streamflow statistics were computed at GAGES-II non-reference streamgages (Falcone, 2011), determined to be affected by only irrigation or regulation among antrhopogenic influences. At each streamgage, statistics were computed from daily streamflow observations, from daily streamflow time series computed using the National Hydrologic Model-Precipitation Runoff Modeling System (NHM-PRMS) model (the “by headwater” and "by observation" calibrations with Muskingum routing; Hay and LaFontaine, 2020), and from daily streamflow time series computed using five statistical time series models fitted to reference basins (Russell and others, 2021). The data release comprises nine .csv files. The streamflow statistics values are provided in eight of these files, one each for the observed, the two NHM-PRMS calibrations, and the five statistical time series models. The remaining file is a summary table, which provides period-of-record information for each streamgage. 
References cited:
Falcone, J.A., 2011, GAGES-II: Geospatial Attributes of Gages for Evaluating Streamflow [digital spatial dataset]: U.S. Geological Survey Water Resources NSDI Node web page,
https://water.usgs.gov/lookup/getspatial?gagesII_Sept2011.
Hay, L.E., and LaFontaine, J.H., 2020, Application of the National Hydrologic Model Infrastructure with the Precipitation-Runoff Modeling System (NHM-PRMS), 1980-2016, Daymet Version 3 calibration: U.S. Geological Survey data release,
https://doi.org/10.5066/P9PGZE0S.
Russell, A.M., Over, T.M., Farmer, W.H., and Miles, K.J., 2021, Statistical daily streamflow estimates at GAGES-II non-reference streamgages in the conterminous Unites States, Water Years 1981-2017: U.S. Geological Survey data release,
https://doi.org/10.5066/P9PA9PKM.""" ;
    dct:identifier "USGS:5f24587a82cef313ed9712fc" ;
    dct:issued "2025-11-22T23:12:43.095098"^^xsd:dateTime ;
    dct:modified "20210211"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-125.5957 24.1664, -125.5957 49.3535, -65.4785 49.3535, -65.4785 24.1664, -125.5957 24.1664))"^^gsp:wktLiteral ] ;
    dct:title "Modeled and observed streamflow statistics at managed basins in the conterminous United States from October 1, 1983, through September 30, 2016" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Thomas M Over" ;
            vcard:hasEmail <mailto:tmover@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/7eeca944-2279-45bc-a891-c716913d37ab/resource/3e18ba7e-50af-4ffa-87c1-2a0b1fe211b3>,
        <https://data.amerigeoss.org/dataset/7eeca944-2279-45bc-a891-c716913d37ab/resource/4ea1adfc-6eab-4edc-8a40-aa8eea6ed437> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "ckan",
        "geo",
        "geoss",
        "national",
        "north-america",
        "statistical-analysis",
        "streamflow",
        "united-states",
        "usgs-5f24587a82cef313ed9712fc" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/7eeca944-2279-45bc-a891-c716913d37ab/resource/3e18ba7e-50af-4ffa-87c1-2a0b1fe211b3> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T19:59:46.766315"^^xsd:dateTime ;
    dct:modified "2025-11-22T23:12:43.087978"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9Z5D4ZT> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/dataset/7eeca944-2279-45bc-a891-c716913d37ab/resource/4ea1adfc-6eab-4edc-8a40-aa8eea6ed437> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T19:59:46.766309"^^xsd:dateTime ;
    dct:modified "2025-11-22T23:12:43.087517"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.5f24587a82cef313ed9712fc.xml> ;
    dcat:mediaType "text/xml" .

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

