@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 owl: <http://www.w3.org/2002/07/owl#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://apgc.awi.de/dataset/2111d9ca-6ad5-41f4-adfa-5a50871462d9> a dcat:Dataset ;
    dct:description """Weekly lake ice classifications distinguish grounded ice and floating ice in lakes based on Sentinel-1A and Sentinel-1B synthetic aperture radar time-series with a resolution of 18 m in mid to late April, 2015 & 2017. Three versions of the product are provided using three different algorithms: 1) image thresholding (THRESH), 2) unsupervised image segmentation using K-means classification (KMEANS), and 3) unsupervised image segmentation using the Iterative Region Growing with Semantics (IRGSEM) algorithm. All version contain two classes: grounded ice (CLASS 1) and floating ice (CLASS 2).\r
\r
More information about image processing and classification can be found in the product guide.""" ;
    dct:identifier "DOI:10.1594/PANGAEA.889727" ;
    dct:issued "2018-02-13T14:34:40.420291"^^xsd:dateTime ;
    dct:modified "2021-11-02T08:59:33.608607"^^xsd:dateTime ;
    dct:publisher <https://apgc.awi.de/organization/5afd87f7-7080-4080-aaef-105b0580644c> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((123.2400 73.9200, 129.3800 73.9200, 129.3800 71.7400, 123.2400 71.7400, 123.2400 73.9200))"^^gsp:wktLiteral ] ;
    dct:title "Lake Ice Classification from Sentinel-1, 2015-2018, Lena Delta, Laptev and East Siberian Sea Region (RU)" ;
    owl:versionInfo "1.0" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Duguay, Claude R." ;
            vcard:hasEmail <mailto:claude.duguay@h2ogeomatics.com> ] ;
    dcat:distribution <https://apgc.awi.de/dataset/2111d9ca-6ad5-41f4-adfa-5a50871462d9/resource/60ce2a96-7916-4bfa-be34-7c9201a122fa>,
        <https://apgc.awi.de/dataset/2111d9ca-6ad5-41f4-adfa-5a50871462d9/resource/771bd54f-eed4-43f8-9f15-d90b5c88511c>,
        <https://apgc.awi.de/dataset/2111d9ca-6ad5-41f4-adfa-5a50871462d9/resource/e8adb0e3-2e2d-46bf-be0c-90c178bef934> ;
    dcat:keyword "Classification",
        "Floating Ice",
        "Grounded Ice",
        "Lake Ice",
        "Permafrost",
        "Sentinel-1" ;
    dcat:landingPage <https://doi.pangaea.de/10.1594/PANGAEA.889727> .

<https://apgc.awi.de/dataset/2111d9ca-6ad5-41f4-adfa-5a50871462d9/resource/60ce2a96-7916-4bfa-be34-7c9201a122fa> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2018-05-14T16:25:42.338027"^^xsd:dateTime ;
    dct:modified "2021-11-01T11:07:45.615288"^^xsd:dateTime ;
    dct:title "Lake Ice Classification" ;
    dcat:accessURL <https://hs.pangaea.de/sat/Sentinel-1A/H2O_CGI_SENT1_V01_C07_LenaDelta.zip> ;
    dcat:mediaType "application/zip" .

<https://apgc.awi.de/dataset/2111d9ca-6ad5-41f4-adfa-5a50871462d9/resource/771bd54f-eed4-43f8-9f15-d90b5c88511c> a dcat:Distribution ;
    dct:format "PDF" ;
    dct:issued "2018-05-14T16:26:00.538529"^^xsd:dateTime ;
    dct:modified "2021-11-01T11:07:45.615376"^^xsd:dateTime ;
    dct:title "Product Guide" ;
    dcat:accessURL <http://hs.pangaea.de/sat/Sentinel-1A/ESA_GlobPermafrost_PD_CGI_20190111_V1.1_H2O.pdf> ;
    dcat:mediaType "application/pdf" .

<https://apgc.awi.de/dataset/2111d9ca-6ad5-41f4-adfa-5a50871462d9/resource/e8adb0e3-2e2d-46bf-be0c-90c178bef934> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2018-02-13T15:35:09.065022"^^xsd:dateTime ;
    dct:modified "2021-11-01T11:07:45.615175"^^xsd:dateTime ;
    dct:title "Preview" ;
    dcat:accessURL <https://apgc.awi.de/dataset/2111d9ca-6ad5-41f4-adfa-5a50871462d9/resource/e8adb0e3-2e2d-46bf-be0c-90c178bef934/download/c07_lenadelta_cgi_irgsem_20150423_preview_150ddpi.png> ;
    dcat:byteSize "70468"^^xsd:nonNegativeInteger ;
    dcat:mediaType "image/png" .

<https://apgc.awi.de/organization/5afd87f7-7080-4080-aaef-105b0580644c> a foaf:Agent ;
    foaf:name "PANGAEA" .

<https://doi.pangaea.de/10.1594/PANGAEA.889727> a foaf:Document .