Bedmap3 updated ice bed, surface and thickness gridded datasets for Antarctica
Pritchard, Hamish D. ORCID: https://orcid.org/0000-0003-2936-1734; Fretwell, Peter T.
ORCID: https://orcid.org/0000-0002-1988-5844; Fremand, Alice C.
ORCID: https://orcid.org/0000-0001-8272-0981; Bodart, Julien A.
ORCID: https://orcid.org/0000-0002-8237-0675; Kirkham, James D.
ORCID: https://orcid.org/0000-0002-0506-1625; Aitken, Alan; Bamber, Jonathan; Bell, Robin; Bianchi, Cesidio; Bingham, Robert G.
ORCID: https://orcid.org/0000-0002-0630-2021; Blankenship, Donald D.; Casassa, Gino; Christianson, Knut; Conway, Howard; Corr, Hugh F.J.; Cui, Xiangbin; Damaske, Detlef; Damm, Volkmar; Dorschel, Boris
ORCID: https://orcid.org/0000-0002-3495-5927; Drews, Reinhard
ORCID: https://orcid.org/0000-0002-2328-294X; Eagles, Graeme; Eisen, Olaf
ORCID: https://orcid.org/0000-0002-6380-962X; Eisermann, Hannes; Ferraccioli, Fausto
ORCID: https://orcid.org/0000-0002-9347-4736; Field, Elena
ORCID: https://orcid.org/0000-0003-0586-7626; Forsberg, René; Franke, Steven
ORCID: https://orcid.org/0000-0001-8462-4379; Goel, Vikram
ORCID: https://orcid.org/0000-0002-8393-0195; Gogineni, Siva Prasad; Greenbaum, Jamin
ORCID: https://orcid.org/0000-0002-0745-7113; Hills, Benjamin; Hindmarsh, Richard C.A.
ORCID: https://orcid.org/0000-0003-1633-2416; Hoffman, Andrew O.; Holschuh, Nicholas; Holt, John W.; Humbert, Angelika
ORCID: https://orcid.org/0000-0002-0244-8760; Jacobel, Robert W.; Jansen, Daniela; Jenkins, Adrian; Jokat, Wilfried; Jong, Lenneke
ORCID: https://orcid.org/0000-0001-6707-570X; Jordan, Tom A.
ORCID: https://orcid.org/0000-0003-2780-1986; King, Edward C.
ORCID: https://orcid.org/0000-0003-3793-3915; Kohler, Jack; Krabill, William; Maton, Joséphine; Gillespie, Mette Kusk; Langley, Kirsty; Lee, Joohan
ORCID: https://orcid.org/0000-0003-2382-7054; Leitchenkov, German; Leuschen, Cartlon; Luyendyk, Bruce
ORCID: https://orcid.org/0000-0002-8722-2807; MacGregor, Joseph A.
ORCID: https://orcid.org/0000-0002-5517-2235; MacKie, Emma; Moholdt, Geir; Matsuoka, Kenichi
ORCID: https://orcid.org/0000-0002-3587-3405; Morlighem, Mathieu
ORCID: https://orcid.org/0000-0001-5219-1310; Mouginot, Jérémie
ORCID: https://orcid.org/0000-0001-9155-5455; Nitsche, Frank O.
ORCID: https://orcid.org/0000-0002-4137-547X; Nost, Ole A.; Paden, John
ORCID: https://orcid.org/0000-0003-0775-6284; Pattyn, Frank; Popov, Sergey; Rignot, Eric
ORCID: https://orcid.org/0000-0002-3366-0481; Rippin, David M.
ORCID: https://orcid.org/0000-0001-7757-9880; Rivera, Andrés
ORCID: https://orcid.org/0000-0002-2779-4192; Roberts, Jason L.
ORCID: https://orcid.org/0000-0002-3477-4069; Ross, Neil
ORCID: https://orcid.org/0000-0002-8338-4905; Ruppel, Antonia; Schroeder, Dustin M.; Siegert, Martin J.
ORCID: https://orcid.org/0000-0002-0090-4806; Smith, Andrew
ORCID: https://orcid.org/0000-0001-8577-482X; Steinhage, Daniel; Studinger, Michael
ORCID: https://orcid.org/0000-0003-1265-4741; Sun, Bo; Tabacco, Ignazio; Tinto, Kirsty J.
ORCID: https://orcid.org/0000-0003-2558-2310; Urbini, Stefano; Vaughan, David G.
ORCID: https://orcid.org/0000-0002-9065-0570; Wilson, Douglas S.; Young, Duncan A.; Zirizzotti, Achille.
2025
Bedmap3 updated ice bed, surface and thickness gridded datasets for Antarctica.
Scientific Data, 12, 414.
20, pp.
10.1038/s41597-025-04672-y
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© The Author(s) 2025. s41597-025-04672-y.pdf - Published Version Available under License Creative Commons Attribution 4.0. Download (5MB) | Preview |
Abstract/Summary
We present Bedmap3, the latest suite of gridded products describing surface elevation, ice-thickness and the seafloor and subglacial bed elevation of the Antarctic south of 60 °S. Bedmap3 incorporates and adds to all post-1950s datasets previously used for Bedmap2, including 84 new aero-geophysical surveys by 15 data providers, an additional 52 million data points and 1.9 million line-kilometres of measurement. These efforts have filled notable gaps including in major mountain ranges and the deep interior of East Antarctica, along West Antarctic coastlines and on the Antarctic Peninsula. Our new Bedmap3/RINGS grounding line similarly consolidates multiple recent mappings into a single, spatially coherent feature. Combined with updated maps of surface topography, ice shelf thickness, rock outcrops and bathymetry, Bedmap3 reveals in much greater detail the subglacial landscape and distribution of Antarctica’s ice, providing new opportunities to interpret continental-scale landscape evolution and to model the past and future evolution of the Antarctic ice sheets.
Item Type: | Publication - Article |
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Digital Object Identifier (DOI): | 10.1038/s41597-025-04672-y |
ISSN: | 2052-4463 |
Date made live: | 10 Mar 2025 15:47 +0 (UTC) |
URI: | https://nora.nerc.ac.uk/id/eprint/539065 |
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