@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/cfe89cff-a48b-42ea-a2a4-4a5fa3f3a0de> 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 19 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 "2018-02-13T08:44:38.306921"^^xsd:dateTime ;
    dct:modified "2021-11-02T08:59:33.311958"^^xsd:dateTime ;
    dct:publisher <https://apgc.awi.de/organization/5afd87f7-7080-4080-aaef-105b0580644c> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-136.7400 69.8300, -131.4000 69.8300, -131.4000 68.0400, -136.7400 68.0400, -136.7400 69.8300))"^^gsp:wktLiteral ] ;
    dct:title "Lake Ice Classification from Sentinel-1, 2015-2017, Mackenzie Delta, Beaufort Sea Region (CA)" ;
    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/cfe89cff-a48b-42ea-a2a4-4a5fa3f3a0de/resource/65a5cb54-735d-47ac-b84f-4eb449b04099>,
        <https://apgc.awi.de/dataset/cfe89cff-a48b-42ea-a2a4-4a5fa3f3a0de/resource/8ca2214a-cad5-4d98-ae64-65b3345c5d6a>,
        <https://apgc.awi.de/dataset/cfe89cff-a48b-42ea-a2a4-4a5fa3f3a0de/resource/b5137af1-77ca-4082-9198-2bf95385c0ef> ;
    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/cfe89cff-a48b-42ea-a2a4-4a5fa3f3a0de/resource/65a5cb54-735d-47ac-b84f-4eb449b04099> a dcat:Distribution ;
    dct:format "PDF" ;
    dct:issued "2018-05-14T16:23:13.419707"^^xsd:dateTime ;
    dct:modified "2021-11-01T11:07:45.284795"^^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/cfe89cff-a48b-42ea-a2a4-4a5fa3f3a0de/resource/8ca2214a-cad5-4d98-ae64-65b3345c5d6a> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2018-02-13T09:45:29.553919"^^xsd:dateTime ;
    dct:modified "2021-11-01T11:07:45.284554"^^xsd:dateTime ;
    dct:title "Preview" ;
    dcat:accessURL <https://apgc.awi.de/dataset/cfe89cff-a48b-42ea-a2a4-4a5fa3f3a0de/resource/8ca2214a-cad5-4d98-ae64-65b3345c5d6a/download/c04_mackenzie_cgi_irgs_20170412_preview_150dpi.png> ;
    dcat:byteSize "116593"^^xsd:nonNegativeInteger ;
    dcat:mediaType "image/png" .

<https://apgc.awi.de/dataset/cfe89cff-a48b-42ea-a2a4-4a5fa3f3a0de/resource/b5137af1-77ca-4082-9198-2bf95385c0ef> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2018-05-14T16:22:56.239735"^^xsd:dateTime ;
    dct:modified "2021-11-01T11:07:45.284701"^^xsd:dateTime ;
    dct:title "Lake Ice Classification" ;
    dcat:accessURL <https://hs.pangaea.de/sat/Sentinel-1A/H2O_CGI_SENT1_V01_C04_Mackenzie_Delta.zip> ;
    dcat:mediaType "application/zip" .

<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 .