@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/6ea34617-9462-4147-8a13-f455c5df4257> a dcat:Dataset ;
    dct:description "These data represent key phenology trends across the western United States from 1982-2016. Using two remote sensing datasets, CMGLSP and VIPPHEN-EVI2, trends were calculated for four phenology variables: Start of Season (SOS), Peak Instantaneous Rate of Green-Up Date (PIRGd), Peak of Season (POS), and End of Season (EOS). The Theil-Sen slope was applied to the phenology metrics, as well as the standard deviation, to give an indication of how phenology dates, as well as variations, are changing throughout time. The Mann-Kendall test was also applied to give an indication of trend significance. Lastly, we include the mean and standard deviation of each metric across the time period." ;
    dct:identifier "USGS:605e1916d34ec5fa65ee5d09" ;
    dct:issued "2025-11-22T13:38:45.076257"^^xsd:dateTime ;
    dct:modified "20210426"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-124.7500 31.3500, -124.7500 49.0000, -102.0500 49.0000, -102.0500 31.3500, -124.7500 31.3500))"^^gsp:wktLiteral ] ;
    dct:title "Historical trend analysis of phenology dates across the Western US from 1982 to 2016" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Tabitha Graves" ;
            vcard:hasEmail <mailto:tgraves@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/6ea34617-9462-4147-8a13-f455c5df4257/resource/8ee726b7-5822-461d-89b8-dbadce7599d6>,
        <https://data.amerigeoss.org/dataset/6ea34617-9462-4147-8a13-f455c5df4257/resource/f7eb8daa-3e6c-450a-9145-bc1ecb119eb3> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "arizona",
        "biota",
        "california",
        "ckan",
        "colorado",
        "end-of-season",
        "geo",
        "geoss",
        "green-up",
        "idaho",
        "montana",
        "national",
        "nevada",
        "new-mexico",
        "north-america",
        "oregon",
        "peak-instantaneous-rate-of-green-up-date",
        "peak-of-season",
        "phenology",
        "start-of-season",
        "trend",
        "united-states",
        "usgs-605e1916d34ec5fa65ee5d09",
        "utah",
        "washington",
        "wyoming" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/6ea34617-9462-4147-8a13-f455c5df4257/resource/8ee726b7-5822-461d-89b8-dbadce7599d6> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-08-06T19:49:50.818950"^^xsd:dateTime ;
    dct:modified "2025-11-22T13:38:45.060697"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.605e1916d34ec5fa65ee5d09.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/dataset/6ea34617-9462-4147-8a13-f455c5df4257/resource/f7eb8daa-3e6c-450a-9145-bc1ecb119eb3> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-08-06T19:49:50.818957"^^xsd:dateTime ;
    dct:modified "2025-11-22T13:38:45.061169"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9YL7B2F> ;
    dcat:mediaType "application/http" .

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