Antarctica and the Southern Ocean basemap
- Collections
- Edition
- 1
- Published
Produced by the Mapping and Geographic Information Centre, British Antarctic Survey, 2025, version 1, https://data.bas.ac.uk/maps/5001.
A basemap of Antarctica and the Southern Ocean, south of 50°S. Consists of hillshade for the land areas of the continent, coastline data, and ocean bathymetry. Created by the Mapping and Geographic Information Centre, British Antarctic Survey.
Source 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.
Projection: WGS84 Antarctic Polar Stereographic.
Data sources and references can be found in the lineage.
Add this item to a desktop or online GIS that supports ArcGIS Raster (Map) Tiles External link, opens in a new window. .
- Service Endpoint
-
https://tiles.arcgis.com/tiles/tPxy1hrFDhJfZ0Mf/arcgis/rest/services/Antarctica_and_the_Southern_Ocean/MapServer
This is a licence summary, see the Formal Licence External link, opens in a new window. for more information.
Bounding Coordinates
- South-West Corner (min x/y)
- South: -90.0, West: -180.0
- North-East Corner (max x/y)
- North: -50.0, East: 180.0
Lineage Statement
Basemap was created using ArcGIS Pro v3.5 and published to ArcGIS Online as an Esri Tile Service.
A hillshade of the topography was generated using the 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 coastline polygon dataset, to ensure the extent exactly matched the coastline.
A 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.
Finally, the coastlines were styled and added to the top of the layers list above the DEM and the bathymetry layers before publishing as a tile layer to ArcGIS Online.
Data sources:
- 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
- Land hillshading: 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.
- Coastline (Antarctica): Gerrish, L., Ireland, L., Fretwell, P., Cooper, P., & Skachkova, A. (2025). High resolution vector polylines of the Antarctic coastline (Version 7.11) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/cc0b73c0-3b53-40fb-ae84-b5dce4ac163a
- 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
Part of these collections
A collection of geospatial datasets and basemaps of Antarctica published by the British Antarctic Survey's Mapping and Geographic Information Centre (MAGIC).
Item Information
- Item ID
- e5d4c722-a8c1-49a9-a4dd-1fd1868e5083
- Item Type
- PRODUCT (MAP)
- Aliases
- Item created
- Item published
- Item released
- Item Status
- Item is a draft and should not yet be used
- Item Update Frequency
- Item may be updated if needed
Metadata Information
- Last updated
- Metadata Standard
- ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
- Metadata Standard Version
- ISO 19115-2:2009(E)
- Metadata Profiles
-
- British Antarctic Survey (BAS) Mapping and Geographic Information Centre (MAGIC) Discovery Metadata Profile (v2) External link, opens in a new window.
- British Antarctic Survey (BAS) Mapping and Geographic Information Centre (MAGIC) Administration Metadata Profile (v1) External link, opens in a new window.
- Metadata Licence
- Creative Commons Attribution-NoDerivatives 4.0 International External link, opens in a new window.
- Metadata Links
- Item page build time
Alternative contact methods
By post
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CB3 0ET
United Kingdom
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