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    "maintenance": {
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    "date_stamp": "2026-05-13",
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  "identification": {
    "title": {
      "value": "Antarctica and Southern Ocean Hillshade and Bathymetry"
    },
    "abstract": "Hillshade and bathymetry compilation of Antarctica and the Southern Ocean, south of 50°S. Created by the Mapping and Geographic Information Centre, British Antarctic Survey.\n\nSource data is reviewed and updated every 6-12 months to ensure coastline is up to date, and data sources are appropriate. Available as an Esri Tile Service. The tile layer can be used up to 1:110,000 scale.\n\nProjection: WGS84 Antarctic Polar Stereographic, EPSG 3031\n\nData sources and references can be found in the lineage.",
    "purpose": "Hillshade and bathymetry compilation of Antarctica and the Southern Ocean, south of 50°S. Created by the Mapping and Geographic Information Centre, British Antarctic Survey.\n",
    "dates": {
      "creation": "2026-05-13",
      "publication": "2026-05-13",
      "released": "2026-05-13"
    },
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    "other_citation_details": "Produced by the Mapping and Geographic Information Centre, British Antarctic Survey, 2026, version 1, [https://data.bas.ac.uk/items/b40090f3-a13d-4918-ab05-7625a0b839d8](https://data.bas.ac.uk/items/b40090f3-a13d-4918-ab05-7625a0b839d8).",
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    "contacts": [
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          "title": "orcid"
        },
        "organisation": {
          "name": "British Antarctic Survey",
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        "phone": "+44 (0)1223 221400",
        "address": {
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          "administrative_area": "Cambridgeshire",
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          "country": "United Kingdom"
        },
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          "title": "ORCID record",
          "description": "ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers.",
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          "city": "Cambridge",
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          "postal_code": "CB3 0ET",
          "country": "United Kingdom"
        },
        "email": "magic@bas.ac.uk",
        "online_resource": {
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          "title": "Mapping and Geographic Information Centre (MAGIC) - BAS public website",
          "description": "General information about the BAS Mapping and Geographic Information Centre (MAGIC) from the British Antarctic Survey (BAS) public website.",
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        },
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        },
        "address": {
          "delivery_point": "Polaris House",
          "city": "Swindon",
          "postal_code": "SN2 1FL",
          "country": "United Kingdom"
        },
        "online_resource": {
          "href": "https://www.ukri.org",
          "title": "UKRI - UK Research and Innovation",
          "description": "Corporate website for UK Research and Innovation (UKRI).",
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    ],
    "maintenance": {
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      "progress": "underDevelopment"
    },
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        "identifier": "overview",
        "href": "https://cdn.web.bas.ac.uk/add-catalogue/0.0.0/img/items/b40090f3-a13d-4918-ab05-7625a0b839d8/antarctica-southern-ocean.png",
        "description": "General overview of resource",
        "mime_type": "image/png"
      }
    ],
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        "restriction_code": "unrestricted",
        "statement": "Open Access (Anonymous)"
      },
      {
        "type": "usage",
        "restriction_code": "license",
        "statement": "This information is licensed under the Open Government Licence v3.0. To view this licence, visit https://www.nationalarchives.gov.uk/doc/open-government-licence/.",
        "href": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/"
      }
    ],
    "aggregations": [
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        "identifier": {
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    "character_set": "utf8",
    "language": "eng",
    "extents": [
      {
        "identifier": "bounding",
        "geographic": {
          "bounding_box": {
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            "east_longitude": 180.0,
            "south_latitude": -90.0,
            "north_latitude": -50.0
          }
        }
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    ],
    "lineage": {
      "statement": "Datasets were prepared using ArcGIS Pro v3.5 and published to ArcGIS Online as an Esri Tile Service.\nA hillshade of the Antarctic topography was generated using the Antarctic DEM, with a z factor of 4 and displayed with a brightness enhancement of +15. The Extract By Mask tool was then used to clip the hillshaded DEM by the Antarctic coastline polygon dataset, to ensure the extent exactly matched the coastline.\n\nA hillshade of the Sub-Antarctic islands and South America was generated using the GLO90 DEM, with a z factor of 1. This was clipped by the sub-antarctic coastline polygon dataset.\n\nA hillshade of the bathymetry was generated using a z factor of 6. This was displayed with a transparency of 30%. Another copy of the bathymetry was styled using a blue to white based on depth, and displayed with a transparency of 20% and placed on top of the hillshade in the layer ordering.\n\nData sources:\n\n* Bathymetry: Dorschel, Boris et al. (2022): The International Bathymetric Chart of the Southern Ocean Version 2 (IBCSO v2). PANGAEA, https://doi.org/10.1594/PANGAEA.937574\n* Land hillshading Antarctica: Howat, Ian, et al., 2022, “The Reference Elevation Model of Antarctica – Mosaics, Version 2”, https://doi.org/10.7910/DVN/EBW8UC, Harvard Dataverse, V1, accessed November 2025.\n* Land hillshading Sub-Antarctic and South America: European Space Agency (2024).  Copernicus Global Digital Elevation Model.  Distributed by OpenTopography.  https://doi.org/10.5069/G9028PQB. Accessed 2026-02-27\n* Coastline (Antarctica): Gerrish, L., Ireland, L., Fretwell, P., Cooper, P., & Skachkova, A. (2026). High resolution vector polygons of the Antarctic coastline 2 (Version 7.12) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/13c4d2f1-8903-4d7f-8977-592121975554\n* Coastline (Sub-Antarctic): Gerrish, L. (2020). Vector polygons of the Sub-Antarctic coastline (1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/c1d83502-8799-4e3c-bdca-21db6a4405d4"
    },
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          "dates": {
            "publication": "2025-11-24"
          },
          "edition": "2",
          "title": {
            "value": "British Antarctic Survey (BAS) Mapping and Geographic Information Centre (MAGIC) Discovery Metadata Profile",
            "href": "https://metadata-standards.data.bas.ac.uk/profiles/magic-discovery/v2/"
          },
          "contact": {
            "organisation": {
              "name": "Mapping and Geographic Information Centre, British Antarctic Survey",
              "href": "https://ror.org/01rhff309",
              "title": "ror"
            },
            "phone": "+44 (0)1223 221400",
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              "delivery_point": "British Antarctic Survey, High Cross, Madingley Road",
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              "country": "United Kingdom"
            },
            "email": "magic@bas.ac.uk",
            "online_resource": {
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              "title": "Mapping and Geographic Information Centre (MAGIC) - BAS public website",
              "description": "General information about the BAS Mapping and Geographic Information Centre (MAGIC) from the British Antarctic Survey (BAS) public website.",
              "function": "information"
            },
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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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        "href": "https://metadata-resources.data.bas.ac.uk/media-types/x-service/arcgis+layer+tile+raster"
      },
      "distributor": {
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          "city": "Redlands",
          "administrative_area": "California",
          "postal_code": "92373",
          "country": "United States of America"
        },
        "online_resource": {
          "href": "https://www.esri.com",
          "title": "GIS Mapping Software, Location Intelligence & Spatial Analytics | Esri",
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      },
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          "function": "information"
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      },
      "transfer_option": {
        "online_resource": {
          "href": "https://tiles.arcgis.com/tiles/tPxy1hrFDhJfZ0Mf/arcgis/rest/services/Antarctic_and_Southern_Ocean_Hillshade_and_Bathymetry/MapServer",
          "title": "ArcGIS Online",
          "description": "Access information as an ArcGIS raster tile service.",
          "function": "download"
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