75787240-20b2-444e-a20a-50067879edcb eng utf8 Mapping and Geographic Information Centre, British Antarctic Survey +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom magic@bas.ac.uk https://www.bas.ac.uk/teams/magic Mapping and Geographic Information Centre (MAGIC) - BAS public website General information about the BAS Mapping and Geographic Information Centre (MAGIC) from the British Antarctic Survey (BAS) public website. information pointOfContact 2026-04-06 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Bedmap3 - Bed topography of Antarctica 2024-08-02 creation 2024-09-02 publication 2024-09-02 released 1 75787240-20b2-444e-a20a-50067879edcb lantern.data.bas.ac.uk maps/bedmap3 alias.lantern.data.bas.ac.uk 978-0-85665-236-3 (Flat) isbn 978-0-85665-235-6 (Folded) isbn BAS Thematic Map 1 British Antarctic Survey, 2024. Bedmap3 - Bed topography of Antarctica, 1:10,000,000 scale maps. BAS Thematic Map Series, Sheets 3A and 3B, Edition 1. Cambridge, British Antarctic Survey. These maps showcase Bedmap3, the latest suite of gridded products describing the surface elevation, ice-thickness and the seafloor and subglacial bed elevation of Antarctica south of 60°S. Bedmap3 incorporates and adds to all of the post-1950s datasets previously used for Bedmap1 and Bedmap2, including 84 new aerogeophysical surveys by 15 data providers that represent an additional 52 million data points and 1.9 million line kilometres of measurement. The two sides of this map show the bed elevation in different colour schemes to highlight different features. Side 1 displays a cartographic colour scheme, highlighting the elevation of the bed beneath the ice and which parts of subglacial Antarctica rest beneath sea level. Side 2 shows ice catchments, subglacial lakes beneath the ice and the drainage network of rivers and hydrology that drains meltwater from the interior of the continent to the ocean. The lakes are a mixture of active and permanent lakes identified from surface features and radio echo sounding. The catchments and hydraulic potential flow lines are modelled from Bedmap3 data. Note that not all water accumulations in the modelled data will be true lakes. These maps showcase Bedmap3, the latest suite of gridded products describing the surface elevation, ice-thickness and the seafloor and subglacial bed elevation of Antarctica south of 60°S. Fretwell, Peter British Antarctic Survey +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom https://orcid.org/0000-0002-1988-5844 ORCID record 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. information author Mapping and Geographic Information Centre, British Antarctic Survey +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom magic@bas.ac.uk https://www.bas.ac.uk/teams/magic Mapping and Geographic Information Centre (MAGIC) - BAS public website General information about the BAS Mapping and Geographic Information Centre (MAGIC) from the British Antarctic Survey (BAS) public website. information author Mapping and Geographic Information Centre, British Antarctic Survey +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom magic@bas.ac.uk https://www.bas.ac.uk/teams/magic Mapping and Geographic Information Centre (MAGIC) - BAS public website General information about the BAS Mapping and Geographic Information Centre (MAGIC) from the British Antarctic Survey (BAS) public website. information pointOfContact Mapping and Geographic Information Centre, British Antarctic Survey +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom magic@bas.ac.uk https://www.bas.ac.uk/teams/magic Mapping and Geographic Information Centre (MAGIC) - BAS public website General information about the BAS Mapping and Geographic Information Centre (MAGIC) from the British Antarctic Survey (BAS) public website. information publisher UK Research and Innovation Polaris House Swindon SN2 1FL United Kingdom https://www.ukri.org UKRI - UK Research and Innovation Corporate website for UK Research and Innovation (UKRI). information rightsHolder asNeeded completed https://cdn.web.bas.ac.uk/add-catalogue/0.0.0/img/items/75787240-20b2-444e-a20a-50067879edcb/bedmap3-cover-thumbnail.jpg General overview of resource image/jpeg unrestricted Open Access (Anonymous) license 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/. 6f5102ae-dfae-4d72-ad07-6ce4c85f5db8 lantern.data.bas.ac.uk largerWorkCitation collection da90b22b-5eec-4521-8a6f-980c86906813 lantern.data.bas.ac.uk isComposedOf 0e23a159-4ae5-4a46-9ca8-e9e49ae6f7fc lantern.data.bas.ac.uk isComposedOf 2aa0c708-3a55-42ca-97ae-6f7a5a7afebf lantern.data.bas.ac.uk crossReference eng utf8 -180.0 180.0 -90.0 -60.0 {"physical_size_width_mm": 840, "physical_size_height_mm": 890, "sheet_number": "3A and 3B"} British Antarctic Survey (BAS) Mapping and Geographic Information Centre (MAGIC) Discovery Metadata Profile 2025-11-24 publication 2 Mapping and Geographic Information Centre, British Antarctic Survey +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom magic@bas.ac.uk https://www.bas.ac.uk/teams/magic Mapping and Geographic Information Centre (MAGIC) - BAS public website General information about the BAS Mapping and Geographic Information Centre (MAGIC) from the British Antarctic Survey (BAS) public website. information publisher Resource within scope of the British Antarctic Survey (BAS) Mapping and Geographic Information Centre (MAGIC) Discovery Metadata Profile. true This map was created in CorelDraw. The map was printed on Opera Matt paper by Dennis Maps. Full details of data sources and references can be found on the map. Further relevant resources include the final [Bedmap3 gridded products](https://doi.org/10.5285/2d0e4791-8e20-46a3-80e4-f5f6716025d2) and the [published paper](https://doi.org/10.1038/s41597-025-04672-y). unrestricted Open Access (Anonymous) license 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/ asNeeded completed