@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/3e49b9b7-8523-400d-aa56-7941a5e94159> a dcat:Dataset ;
    dct:description """The U.S. Geological Survey (USGS), in cooperation with Connecticut Department of Transportation, completed a study to improve flood-frequency estimates in Connecticut. This companion data release is a Microsoft Excel workbook for: (1) computing flood discharges for the 50- to 0.2-percent annual exceedance probabilities from peak-flow regression equations, and (2) computing additional prediction intervals, not available through the USGS StreamStats web application. The current StreamStats application (version 4) only computes the 90-percent prediction interval for stream sites in Connecticut. 
The Excel workbook can be used to compute the 70-, 80-, 90-, 95-, and 99-percent prediction intervals. The prediction interval provides upper and lower limits of the estimated flood discharge with a certain probability, or level of confidence in the accuracy of the estimate.  The standard error of prediction for the Connecticut peak-flow regression equations ranged from 26.3 to 45.0 percent (Ahearn and Hodgkins, 2020). The Excel workbook consists of four worksheets. The worksheets provide an overview of how the application works; input and output tables of the explanatory variables and flood discharges, and graphical display of the results; and the computational formulas used to estimate the flood discharges and prediction intervals.""" ;
    dct:identifier "USGS:5e7e6ed3e4b01d5092771850" ;
    dct:issued "2025-11-21T04:03:19.066005"^^xsd:dateTime ;
    dct:modified "20201002"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-73.7500 40.9500, -73.7500 42.1000, -71.7000 42.1000, -71.7000 40.9500, -73.7500 40.9500))"^^gsp:wktLiteral ] ;
    dct:title "Worksheet for computing annual exceedance probability flood discharges and prediction intervals at stream sites in Connecticut" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Elizabeth A Ahearn" ;
            vcard:hasEmail <mailto:eaahearn@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/3e49b9b7-8523-400d-aa56-7941a5e94159/resource/1e0871fc-7241-4919-80f2-012c43e9b5a8>,
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    dcat:keyword "amerigeo",
        "amerigeoss",
        "annual-exceedance-probability",
        "average-standard-error-of-prediction",
        "ckan",
        "flood-frequency",
        "geo",
        "geoss",
        "national",
        "north-america",
        "prediction-interval",
        "united-states",
        "usgs-5e7e6ed3e4b01d5092771850" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/3e49b9b7-8523-400d-aa56-7941a5e94159/resource/1e0871fc-7241-4919-80f2-012c43e9b5a8> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-07T15:08:59.317372"^^xsd:dateTime ;
    dct:modified "2025-11-21T04:03:19.057863"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.5e7e6ed3e4b01d5092771850.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/dataset/3e49b9b7-8523-400d-aa56-7941a5e94159/resource/7fbc95c6-a6ef-491c-883b-96256f93397d> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-07T15:08:59.317378"^^xsd:dateTime ;
    dct:modified "2025-11-21T04:03:19.058274"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9EWHAYW> ;
    dcat:mediaType "application/http" .

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