@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/2506daf3-2b79-4274-ad62-59c8a08cb26e> 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 10 cm, as well as photogrammetric point clouds in RGB and NIR at 7.76 pts/m² and 2.95 pts/m², respectively. This dataset covers approximately 22.14 km² of Drew Point in Alaska, with all images collected on 30 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.962580" ;
    dct:issued "2026-02-24T16:17:34.666136"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.104661"^^xsd:dateTime ;
    dct:publisher <https://apgc.awi.de/organization/5afd87f7-7080-4080-aaef-105b0580644c> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-153.5951 70.8517, -153.4556 70.8517, -153.4556 70.8894, -153.5951 70.8894, -153.5951 70.8517))"^^gsp:wktLiteral ] ;
    dct:title "Super-high-resolution aerial imagery, digital surface model and 3D point cloud of Drew Point, Alaska (subset 04)" ;
    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/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/0c743955-9ad8-4f4b-a059-da569f49c5e2>,
        <https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/16fab0ec-4dcc-4849-a106-83f61fea2a2b>,
        <https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/3e19f36a-cef5-4fdc-8880-f1b2b17bb504>,
        <https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/3fcfdd57-f7f9-4e62-961d-67f80af9d61e>,
        <https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/660e18fa-e48a-4927-ab68-a9214e37d72f>,
        <https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/78db4dd2-9da7-4463-90d9-680e3a2e304a>,
        <https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/91ad15cb-5b12-49ef-aac3-be0583cf2b9b>,
        <https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/bdf3f014-fc99-4797-8f0b-ffed492bec2e>,
        <https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/e1d11427-81e5-48d9-ade1-3a62c50487fe>,
        <https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/ecf2f689-0b85-449e-b3e5-dfb13b1e8260>,
        <https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/f37a4c08-a0c7-4bd6-9d93-8c510ce0c70f> ;
    dcat:keyword "Airborne Data",
        "Alaska",
        "Arctic Landscape Dynamics",
        "Coastal Erosion",
        "Digital Surface Model",
        "Macs",
        "Orthoimagery",
        "Permafrost",
        "Point Clouds",
        "Structure-From-Motion" ;
    dcat:landingPage <https://doi.org/10.1594/PANGAEA.962580> .

<https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/0c743955-9ad8-4f4b-a059-da569f49c5e2> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T16:17:34.670150"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.111241"^^xsd:dateTime ;
    dct:title "Preview png of RGB" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962580/files/NA_DrewPoint_20190730_10cm_04_preview_RGB.png> .

<https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/16fab0ec-4dcc-4849-a106-83f61fea2a2b> a dcat:Distribution ;
    dct:format "ZIP" ;
    dct:issued "2026-02-24T16:17:34.670200"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.114619"^^xsd:dateTime ;
    dct:title "Processing info" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962580/files/NA_DrewPoint_20190730_10cm_04_processing_info.zip> .

<https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/3e19f36a-cef5-4fdc-8880-f1b2b17bb504> a dcat:Distribution ;
    dct:format "LAS" ;
    dct:issued "2026-02-24T16:17:34.670192"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.114311"^^xsd:dateTime ;
    dct:title "PointClouds all tiles NIR and RGB" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962580/files/NA_DrewPoint_20190730_10cm_04_PointClouds_tiles.zip> .

<https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/3fcfdd57-f7f9-4e62-961d-67f80af9d61e> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T16:17:34.670175"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.111554"^^xsd:dateTime ;
    dct:title "GeoTiffs all tiles and virtual mosaic Ortho" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962580/files/NA_DrewPoint_20190730_10cm_04_Ortho_tiles.zip> .

<https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/660e18fa-e48a-4927-ab68-a9214e37d72f> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T16:17:34.670187"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.111803"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of hillshade" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962580/files/NA_DrewPoint_20190730_10cm_04_Hillshade.tif> .

<https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/78db4dd2-9da7-4463-90d9-680e3a2e304a> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T16:17:34.670179"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.111623"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962580/files/NA_DrewPoint_20190730_10cm_04_DSM.tif> .

<https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/91ad15cb-5b12-49ef-aac3-be0583cf2b9b> a dcat:Distribution ;
    dct:format "GeoJSON" ;
    dct:issued "2026-02-24T16:17:34.670196"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.114459"^^xsd:dateTime ;
    dct:title "Tile footprints geojson" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962580/files/NA_DrewPoint_20190730_10cm_04_tile_footprints.geojson> .

<https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/bdf3f014-fc99-4797-8f0b-ffed492bec2e> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T16:17:34.670170"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.111488"^^xsd:dateTime ;
    dct:title "Cloud-optimized GeoTIFF of Ortho" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962580/files/NA_DrewPoint_20190730_10cm_04_Ortho.tif> .

<https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/e1d11427-81e5-48d9-ade1-3a62c50487fe> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T16:17:34.670166"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.111419"^^xsd:dateTime ;
    dct:title "Preview png of DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962580/files/NA_DrewPoint_20190730_10cm_04_preview_DSM.png> .

<https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/ecf2f689-0b85-449e-b3e5-dfb13b1e8260> a dcat:Distribution ;
    dct:format "PNG" ;
    dct:issued "2026-02-24T16:17:34.670161"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.111346"^^xsd:dateTime ;
    dct:title "Preview png of CIR" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962580/files/NA_DrewPoint_20190730_10cm_04_preview_CIR.png> .

<https://apgc.awi.de/dataset/2506daf3-2b79-4274-ad62-59c8a08cb26e/resource/f37a4c08-a0c7-4bd6-9d93-8c510ce0c70f> a dcat:Distribution ;
    dct:format "Geotiff" ;
    dct:issued "2026-02-24T16:17:34.670183"^^xsd:dateTime ;
    dct:modified "2026-02-26T11:15:43.111688"^^xsd:dateTime ;
    dct:title "GeoTiffs all tiles and virtual mosaic DSM" ;
    dcat:accessURL <https://download.pangaea.de/dataset/962580/files/NA_DrewPoint_20190730_10cm_04_DSM_tiles.zip> .

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

<https://doi.org/10.1594/PANGAEA.962580> a foaf:Document .