@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/48be38ca-bee9-48ed-a2e6-d341b499ff76> a dcat:Dataset ;
    dct:description "This data file is comprised of instantaneous values of the geomagnetic components D, H, and Z or X, Y, and Z at 2.5-minute intervals. These values were derived from analog recordings (magnetograms) with the aid of semi-automatic digitizing equipment from a worldwide network of about 75 observatories." ;
    dct:identifier "gov.noaa.ngdc.stp.geomag:G00001" ;
    dct:issued "2025-11-21T10:57:27.891382"^^xsd:dateTime ;
    dct:language "{en-US}" ;
    dct:modified "1972-01-01"^^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 "Worldwide Instantaneous Values of Geomagnetic Components D, H, and Z or X, Y, and Z at 2.5-minute Intervals from 1964 to 1974" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Justin Mabie" ;
            vcard:hasEmail <mailto:Justin.Mabie@noaa.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/48be38ca-bee9-48ed-a2e6-d341b499ff76/resource/ed0243be-99b4-45d6-9c39-217308190122> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "boulder",
        "boulder-world-data-center-for-solar-terrestrial-physics",
        "ckan",
        "doc-noaa-nesdis-ngdc-national-geophysical-data-center",
        "earth-science-interior-crust",
        "earth-science-solid-earth-geomagnetism-magnetic-declination",
        "earth-science-solid-earth-geomagnetism-magnetic-intensity",
        "earth-science-sun-earth-interactions-ionosphere-magnetosphere-particles",
        "geo",
        "geomagnetic-components",
        "geoss",
        "global",
        "magnetometer",
        "national",
        "nesdis",
        "noaa",
        "north-america",
        "u-s-department-of-commerce",
        "united-states",
        "wdc-stp" .

<https://data.amerigeoss.org/dataset/48be38ca-bee9-48ed-a2e6-d341b499ff76/resource/ed0243be-99b4-45d6-9c39-217308190122> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2021-03-11T00:24:49.197698"^^xsd:dateTime ;
    dct:modified "2025-11-21T10:57:27.879778"^^xsd:dateTime ;
    dct:title "Web Page" ;
    dcat:accessURL <http://www.ngdc.noaa.gov/stp> ;
    dcat:mediaType "text/html" .

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