@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/af778f6a-5822-48b5-9c27-ce45925ca14a> 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 37.36 pts/m² and 12.48 pts/m², respectively. This dataset covers approximately 9.46 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.962312" ;
    dct:issued "2026-02-24T17:17:20.270976"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.487646"^^xsd:dateTime ;
    dct:publisher <https://apgc.awi.de/organization/5afd87f7-7080-4080-aaef-105b0580644c> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-159.2578 69.9009, -159.1238 69.9009, -159.1238 69.9207, -159.2578 69.9207, -159.2578 69.9009))"^^gsp:wktLiteral ] ;
    dct:title "Super-high-resolution aerial imagery, digital surface model and 3D point cloud of Ketik Fire Scar, Alaska (subset 06)" ;
    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/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/0326643f-409b-4013-ae68-2c7a6736360b>,
        <https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/0f7f2c0c-b386-4f67-ac94-bb930b470d00>,
        <https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/3f7898f2-0519-4a53-bf8d-557adc48ec01>,
        <https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/6744960e-c6ce-4e53-8e4b-3e224a882513>,
        <https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/a40abafd-2f93-4f87-ba32-e7886df0e963>,
        <https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/a7514f5e-f51c-40c6-b2c2-04df58148382>,
        <https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/b1bf6dcf-ab19-4443-80a7-b28d2f7fe86d>,
        <https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/c0098d0a-6091-431f-9d0f-33c7ea6e3159>,
        <https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/e39cb7ff-b976-4e39-a5fc-56702e18c945>,
        <https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/e9b12c35-b988-4c35-b8d7-947b9b65f78e>,
        <https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/ee34965b-feb1-4b2d-a503-2020932a3bdf> ;
    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.962312> .

<https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/0326643f-409b-4013-ae68-2c7a6736360b> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:17:20.358311"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.498859"^^xsd:dateTime ;
    dct:title "GeoTiffs all tiles and virtual mosaic DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962312/files/NA_KetikFire_20190727_7cm_06_DSM_tiles.zip> .

<https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/0f7f2c0c-b386-4f67-ac94-bb930b470d00> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T17:17:20.358306"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.498587"^^xsd:dateTime ;
    dct:title "Preview png of DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962312/files/NA_KetikFire_20190727_7cm_06_preview_DSM.png> .

<https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/3f7898f2-0519-4a53-bf8d-557adc48ec01> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:17:20.358310"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.498793"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962312/files/NA_KetikFire_20190727_7cm_06_DSM.tif> .

<https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/6744960e-c6ce-4e53-8e4b-3e224a882513> a dcat:Distribution ;
    dct:format "ZIP" ;
    dct:issued "2026-02-24T17:17:20.358317"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.499125"^^xsd:dateTime ;
    dct:title "Processing info" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962312/files/NA_KetikFire_20190727_7cm_06_processing_info.zip> .

<https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/a40abafd-2f93-4f87-ba32-e7886df0e963> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T17:17:20.358299"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.498408"^^xsd:dateTime ;
    dct:title "Preview png of RGB" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962312/files/NA_KetikFire_20190727_7cm_06_preview_RGB.png> .

<https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/a7514f5e-f51c-40c6-b2c2-04df58148382> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:17:20.358307"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.498657"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of Ortho" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962312/files/NA_KetikFire_20190727_7cm_06_Ortho.tif> .

<https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/b1bf6dcf-ab19-4443-80a7-b28d2f7fe86d> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:17:20.358308"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.498725"^^xsd:dateTime ;
    dct:title "GeoTiffs all tiles and virtual mosaic Ortho" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962312/files/NA_KetikFire_20190727_7cm_06_Ortho_tiles.zip> .

<https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/c0098d0a-6091-431f-9d0f-33c7ea6e3159> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T17:17:20.358313"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.498925"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of hillshade" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962312/files/NA_KetikFire_20190727_7cm_06_Hillshade.tif> .

<https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/e39cb7ff-b976-4e39-a5fc-56702e18c945> a dcat:Distribution ;
    dct:format "GeoJSON" ;
    dct:issued "2026-02-24T17:17:20.358315"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.499059"^^xsd:dateTime ;
    dct:title "Tile footprints geojson" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962312/files/NA_KetikFire_20190727_7cm_06_tile_footprints.geojson> .

<https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/e9b12c35-b988-4c35-b8d7-947b9b65f78e> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T17:17:20.358304"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.498513"^^xsd:dateTime ;
    dct:title "Preview png of CIR" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962312/files/NA_KetikFire_20190727_7cm_06_preview_CIR.png> .

<https://apgc.awi.de/dataset/af778f6a-5822-48b5-9c27-ce45925ca14a/resource/ee34965b-feb1-4b2d-a503-2020932a3bdf> a dcat:Distribution ;
    dct:format "LAS" ;
    dct:issued "2026-02-24T17:17:20.358314"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:16:21.498993"^^xsd:dateTime ;
    dct:title "PointClouds all tiles NIR and RGB" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962312/files/NA_KetikFire_20190727_7cm_06_PointClouds_tiles.zip> .

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

<https://doi.org/10.1594/PANGAEA.962312> a foaf:Document .