@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/7a085089-1acb-4a7d-a7cf-7153f1b5758a> a dcat:Dataset ;
    dct:description """The Electron Density Profile, N(h), data set contains both individual profiles and composite months. The data consist of virtual height/frequency pairs from a profile or profiles (composite months) of ionograms. Data includes the station, year, month and hour (or composite month) for each record. Data are available on 9-track magnetic tape. Electron density profiles are also available in Dataset_ID: G10145. The stations included are Argentia, Bermuda,
                    College, Dyess, Goose Bay, Narssarssuaq, Puerto Rico, Sondestrom, Thule, and Wallops Island.""" ;
    dct:identifier "gov.noaa.ngdc.stp.ionosonde:G00146" ;
    dct:issued "2025-11-22T20:36:16.119512"^^xsd:dateTime ;
    dct:language "{en-US}" ;
    dct:modified "1973-01-01"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-180.0000 -90.0000, 180.0000 -90.0000, 180.0000 90.0000, -180.0000 90.0000, -180.0000 -90.0000))"^^gsp:wktLiteral ] ;
    dct:title "Electron Density Profile Data Contains Virtual Height/Frequency Pairs from a Profile or Profiles (Composite Months) of Ionograms" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Justin Mabie" ;
            vcard:hasEmail <mailto:ionosonde@noaa.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/7a085089-1acb-4a7d-a7cf-7153f1b5758a/resource/0da23cf1-dd35-4f51-9e7e-9c5dfd088176> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "ckan",
        "earth-science-sun-earth-interactions-ionosphere-magnetosphere-particles-particle-density",
        "geo",
        "geoss",
        "global",
        "national",
        "nh",
        "north-america",
        "united-states" .

<https://data.amerigeoss.org/dataset/7a085089-1acb-4a7d-a7cf-7153f1b5758a/resource/0da23cf1-dd35-4f51-9e7e-9c5dfd088176> a dcat:Distribution ;
    dct:description "ionogram.html" ;
    dct:format "HTML" ;
    dct:issued "2021-03-11T00:25:38.205219"^^xsd:dateTime ;
    dct:modified "2025-11-22T20:36:16.112276"^^xsd:dateTime ;
    dct:title "Web Page" ;
    dcat:accessURL <http://www.ngdc.noaa.gov/stp/IONO/ionogram.html> ;
    dcat:mediaType "text/html" .

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