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        "restriction_code": "license",
        "statement": "This information is licensed under the Creative Commons Attribution-NoDerivatives 4.0 International Licence (CC BY-ND 4.0). To view this licence, visit https://creativecommons.org/licenses/by-nd/4.0/",
        "href": "https://creativecommons.org/licenses/by-nd/4.0/"
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  "identification": {
    "title": {
      "value": "Rothera Station Orthomosaic 2026-03-02"
    },
    "abstract": "Orthomosaic of Rothera Station derived from UAV imagery acquired by the BAS Engineering Team for site progress recording and general visual reference.\n\n> [!WARNING]\n> This item is not a survey-grade output and has known positional accuracy limitations.\n\nFurther details on acquisition, processing, data quality and restrictions on use are provided in the [Lineage](#tab-lineage).\n\n> [!NOTE] A new edition of this item is available\n>\n> Please see [Rothera Station Orthomosaic 2026-05-26](/items/75a43e71-f69e-4c7e-91c2-9f0b10dc4ee5), edition **2026.5.1**.\n",
    "purpose": "Orthomosaic of Rothera Station, derived from UAV imagery captured 2nd March 2026.",
    "dates": {
      "publication": "2026-09-21T10:30:11+00:00",
      "released": "2026-09-21T10:30:11+00:00",
      "superseded": "2026-09-21T10:30:28+00:00"
    },
    "edition": "2026.3.1",
    "other_citation_details": "British Antarctic Survey (2026). _Rothera Station Orthomosaic 2026-03-02_ (Version 2026.3.1) [Product]. British Antarctic Survey Mapping and Geographic Information Centre. [https://data.bas.ac.uk/items/9a1b3794-51c5-48a1-b252-71865384c48c](https://data.bas.ac.uk/items/9a1b3794-51c5-48a1-b252-71865384c48c).",
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      "progress": "superseded"
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        "restriction_code": "restricted",
        "statement": "Closed Access (BAS Staff)"
      },
      {
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        "restriction_code": "license",
        "statement": "This information is licensed under the (Local) MAGIC Products v1 licence. To view this licence, visit https://metadata-resources.data.bas.ac.uk/licences/magic-products-v1/.",
        "href": "https://metadata-resources.data.bas.ac.uk/licences/magic-products-v1/"
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            "east_longitude": -68.1095683,
            "south_latitude": -67.5743009,
            "north_latitude": -67.5610906
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      "statement": "The orthomosaic was generated from UAV imagery captured by the BAS Engineering Team at Rothera Research Station.\n\n### Instrumentation\n\nUAV model:\n\n* DJI Mavic 3 Enterprise\n\nCamera specification:\n\n* Sensor: 4/3 CMOS, 20 MP effective pixels\n* Lens field of view: 84°\n* Equivalent focal length: 24mm\n* Aperture: f/2.8-f/11\n* Focus range: 1m to infinity\n* ISO range: 100-6400\n* Electronic shutter speed: 8-1/8000s\n* Mechanical shutter speed: 8-1/2000s\n* Maximum image size: 5280x3956 pixels\n\n### Data processing and accuracy\n\nThe orthomosaic was produced through photogrammetric processing of the UAV imagery and exported in the UTM Zone 19S coordinate system.\n\nNo surveyed Ground Control Points were used during the processing. The dataset was therefore georeferenced using the UAV's internal positional information only.\n\nNo independent accuracy assessment was undertaken; therefore, the positional accuracy of the dataset has not been independently verified. As the imagery was not acquired or processed for accurate mapping or survey purposes, no Ground Sampling Distance (GSD) has been specified, and no photogrammetric processing or accuracy report is available for this item.\n\n> [!WARNING]\n> This orthomosaic is intended for visual reference, site awareness, and general progress-record purposes only.\n>\n> It should not be used for precise measurement, setting out, design verification, engineering assessment, asset positioning, boundary definition, or any other survey-grade application."
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        "explanation": "Resource within scope of the British Antarctic Survey (BAS) Mapping and Geographic Information Centre (MAGIC) Discovery Metadata Profile.",
        "result": true
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