@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/1b1e4879-cdff-4b7a-b4af-51e627739ff4> 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 36.11 pts/m² and 12.70 pts/m², respectively. This dataset covers approximately 9.49 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.962320" ;
    dct:issued "2026-02-24T17:19:30.079340"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.746951"^^xsd:dateTime ;
    dct:publisher <https://apgc.awi.de/organization/5afd87f7-7080-4080-aaef-105b0580644c> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-159.0037 69.8916, -158.8696 69.8916, -158.8696 69.9114, -159.0037 69.9114, -159.0037 69.8916))"^^gsp:wktLiteral ] ;
    dct:title "Super-high-resolution aerial imagery, digital surface model and 3D point cloud of Ketik Fire Scar, Alaska (subset 08)" ;
    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/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/166a0dc8-09e7-43a0-b566-778c92185518>,
        <https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/321587a1-1b6e-4611-8411-a58020293162>,
        <https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/4470ba26-b2af-4b67-ba3e-01011bae27bc>,
        <https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/54247574-d16c-4749-81bc-4207fcd31465>,
        <https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/75c32195-46bd-4901-ac16-f5634714036f>,
        <https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/7a6b8d08-27f5-4656-a15b-d4e3ba6de848>,
        <https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/83295e81-64fa-46a5-9b30-ce3d5c1ac99e>,
        <https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/9fc08048-f509-431a-a7a9-03b99db3f5b1>,
        <https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/c20ef0fb-2ddb-4be1-a2e2-f6e5d8902cc6>,
        <https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/d050aa67-ac4b-454f-9224-41083e80fb4c>,
        <https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/f0a6ff60-d6c0-48a4-96d1-29b482f2a134> ;
    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.962320> .

<https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/166a0dc8-09e7-43a0-b566-778c92185518> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:19:30.081734"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.760022"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of hillshade" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962320/files/NA_KetikFire_20190727_7cm_08_Hillshade.tif> .

<https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/321587a1-1b6e-4611-8411-a58020293162> a dcat:Distribution ;
    dct:format "ZIP" ;
    dct:issued "2026-02-24T17:19:30.081738"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.760431"^^xsd:dateTime ;
    dct:title "Processing info" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962320/files/NA_KetikFire_20190727_7cm_08_processing_info.zip> .

<https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/4470ba26-b2af-4b67-ba3e-01011bae27bc> a dcat:Distribution ;
    dct:format "GeoJSON" ;
    dct:issued "2026-02-24T17:19:30.081737"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.760304"^^xsd:dateTime ;
    dct:title "Tile footprints geojson" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962320/files/NA_KetikFire_20190727_7cm_08_tile_footprints.geojson> .

<https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/54247574-d16c-4749-81bc-4207fcd31465> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T17:19:30.081725"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.759282"^^xsd:dateTime ;
    dct:title "Preview png of CIR" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962320/files/NA_KetikFire_20190727_7cm_08_preview_CIR.png> .

<https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/75c32195-46bd-4901-ac16-f5634714036f> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:19:30.081728"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.759542"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of Ortho" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962320/files/NA_KetikFire_20190727_7cm_08_Ortho.tif> .

<https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/7a6b8d08-27f5-4656-a15b-d4e3ba6de848> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T17:19:30.081721"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.759109"^^xsd:dateTime ;
    dct:title "Preview png of RGB" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962320/files/NA_KetikFire_20190727_7cm_08_preview_RGB.png> .

<https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/83295e81-64fa-46a5-9b30-ce3d5c1ac99e> a dcat:Distribution ;
    dct:format "LAS" ;
    dct:issued "2026-02-24T17:19:30.081735"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.760181"^^xsd:dateTime ;
    dct:title "PointClouds all tiles NIR and RGB" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962320/files/NA_KetikFire_20190727_7cm_08_PointClouds_tiles.zip> .

<https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/9fc08048-f509-431a-a7a9-03b99db3f5b1> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:19:30.081732"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.759904"^^xsd:dateTime ;
    dct:title "GeoTiffs all tiles and virtual mosaic DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962320/files/NA_KetikFire_20190727_7cm_08_DSM_tiles.zip> .

<https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/c20ef0fb-2ddb-4be1-a2e2-f6e5d8902cc6> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T17:19:30.081727"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.759414"^^xsd:dateTime ;
    dct:title "Preview png of DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962320/files/NA_KetikFire_20190727_7cm_08_preview_DSM.png> .

<https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/d050aa67-ac4b-454f-9224-41083e80fb4c> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:19:30.081730"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.759665"^^xsd:dateTime ;
    dct:title "GeoTiffs all tiles and virtual mosaic Ortho" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962320/files/NA_KetikFire_20190727_7cm_08_Ortho_tiles.zip> .

<https://apgc.awi.de/dataset/1b1e4879-cdff-4b7a-b4af-51e627739ff4/resource/f0a6ff60-d6c0-48a4-96d1-29b482f2a134> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:19:30.081731"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:23.759785"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962320/files/NA_KetikFire_20190727_7cm_08_DSM.tif> .

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

<https://doi.org/10.1594/PANGAEA.962320> a foaf:Document .