@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/658fca35-80d1-4e52-8d98-a8458af2274d> a dcat:Dataset ;
    dct:description "As part of the ThawTrend-Air airborne campaign led by the Alfred Wegener Institute in 2019, we collected super-high-resolution multispectral imagery of permafrost landscapes with the Modular Aerial Camera System (MACS), developed by the German Aerospace Center. From these images, we photogrammetrically processed four-band orthophotos (blue, green, red, near-infrared) and digital surface models at a spatial resolution of 7 cm, as well as photogrammetric point clouds in RGB and NIR at 34.79 pts/m² and 11.80 pts/m², respectively. This dataset covers approximately 8.17 km² of the Ketik fire scar in Alaska, with all images collected on 27 July 2019. This super-high-resolution dataset provides opportunities for generating detailed training datasets of permafrost landform inventories, a baseline for change detection for thermokarst and thermo-erosion processes, and upscaling of field measurements to lower-resolution satellite observations." ;
    dct:identifier "DOI:10.1594/PANGAEA.962271" ;
    dct:issued "2026-02-24T17:13:34.614163"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.891955"^^xsd:dateTime ;
    dct:publisher <https://apgc.awi.de/organization/5afd87f7-7080-4080-aaef-105b0580644c> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-159.8729 69.9244, -159.7598 69.9244, -159.7598 69.9435, -159.8729 69.9435, -159.8729 69.9244))"^^gsp:wktLiteral ] ;
    dct:title "Super-high-resolution aerial imagery, digital surface model and 3D point cloud of Ketik Fire Scar, Alaska (subset 01)" ;
    owl:versionInfo "1" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Tabea Rettelbach" ;
            vcard:hasEmail <mailto:tabea.rettelbach@awi.de> ] ;
    dcat:distribution <https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/1f423fd9-c981-4086-8cc5-537022698a6a>,
        <https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/3a15860e-40c6-4277-8304-433fd14b8ddf>,
        <https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/3dbff652-9d81-4490-bffc-4ef546eaea9d>,
        <https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/65286c39-00a9-4401-ac4d-6a36420dfa84>,
        <https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/9ae3af10-46f4-4d8a-8497-b73d466016c7>,
        <https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/9f1950eb-0c00-4046-b7eb-525982d15646>,
        <https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/a43bf74d-36b5-42cf-af6a-f53efe5cd4d1>,
        <https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/abe9c837-d68c-4f36-a919-18c66ee450a5>,
        <https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/b4a54e1b-d315-4301-9d88-ebc9646bca05>,
        <https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/c3c10912-5d8b-4865-8129-bc40c7acfd0e>,
        <https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/ea78372b-2c92-4645-8d79-e639f69d5fcf> ;
    dcat:keyword "Airborne Data",
        "Alaska",
        "Arctic Landscape Dynamics",
        "Digital Surface Model",
        "Fire Scar",
        "Ice-Wedge Polygons",
        "Macs",
        "Orthoimagery",
        "Permafrost",
        "Point Clouds",
        "Structure-From-Motion" ;
    dcat:landingPage <https://doi.org/10.1594/PANGAEA.962271> .

<https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/1f423fd9-c981-4086-8cc5-537022698a6a> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:13:34.621312"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.944813"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of Ortho" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962271/files/NA_KetikFire_20190727_7cm_01_Ortho.tif> .

<https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/3a15860e-40c6-4277-8304-433fd14b8ddf> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:13:34.621318"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.945090"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of hillshade" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962271/files/NA_KetikFire_20190727_7cm_01_Hillshade.tif> .

<https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/3dbff652-9d81-4490-bffc-4ef546eaea9d> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T17:13:34.621308"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.944662"^^xsd:dateTime ;
    dct:title "Preview png of CIR" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962271/files/NA_KetikFire_20190727_7cm_01_preview_CIR.png> .

<https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/65286c39-00a9-4401-ac4d-6a36420dfa84> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T17:13:34.621310"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.944739"^^xsd:dateTime ;
    dct:title "Preview png of DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962271/files/NA_KetikFire_20190727_7cm_01_preview_DSM.png> .

<https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/9ae3af10-46f4-4d8a-8497-b73d466016c7> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T17:13:34.621304"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.944536"^^xsd:dateTime ;
    dct:title "Preview png of RGB" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962271/files/NA_KetikFire_20190727_7cm_01_preview_RGB.png> .

<https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/9f1950eb-0c00-4046-b7eb-525982d15646> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:13:34.621316"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.945022"^^xsd:dateTime ;
    dct:title "GeoTiffs all tiles and virtual mosaic DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962271/files/NA_KetikFire_20190727_7cm_01_DSM_tiles.zip> .

<https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/a43bf74d-36b5-42cf-af6a-f53efe5cd4d1> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:13:34.621315"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.944954"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962271/files/NA_KetikFire_20190727_7cm_01_DSM.tif> .

<https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/abe9c837-d68c-4f36-a919-18c66ee450a5> a dcat:Distribution ;
    dct:format "LAS" ;
    dct:issued "2026-02-24T17:13:34.621320"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.945156"^^xsd:dateTime ;
    dct:title "PointClouds all tiles NIR and RGB" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962271/files/NA_KetikFire_20190727_7cm_01_PointClouds_tiles.zip> .

<https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/b4a54e1b-d315-4301-9d88-ebc9646bca05> a dcat:Distribution ;
    dct:format "ZIP" ;
    dct:issued "2026-02-24T17:13:34.621323"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.945291"^^xsd:dateTime ;
    dct:title "Processing info" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962271/files/NA_KetikFire_20190727_7cm_01_processing_info.zip> .

<https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/c3c10912-5d8b-4865-8129-bc40c7acfd0e> a dcat:Distribution ;
    dct:format "GeoJSON" ;
    dct:issued "2026-02-24T17:13:34.621321"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.945224"^^xsd:dateTime ;
    dct:title "Tile footprints geojson" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962271/files/NA_KetikFire_20190727_7cm_01_tile_footprints.geojson> .

<https://apgc.awi.de/dataset/658fca35-80d1-4e52-8d98-a8458af2274d/resource/ea78372b-2c92-4645-8d79-e639f69d5fcf> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:13:34.621313"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:14.944884"^^xsd:dateTime ;
    dct:title "GeoTiffs all tiles and virtual mosaic Ortho" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962271/files/NA_KetikFire_20190727_7cm_01_Ortho_tiles.zip> .

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

<https://doi.org/10.1594/PANGAEA.962271> a foaf:Document .