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Lookup NU author(s): Professor Neil RossORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
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.
Author(s): Pritchard HD, Fretwell P, Fremand AC, Bodart JA, Kirkham JD, Aitken A, Bamber J, Bell R, Bianchi C, Bingham RG, Blankenship DD, Casassa G, Christianson K, Conway H, Corr HFJ, Xiangbin C, Damaske D, Damn V, Dorschel B, Drews R, Eagles G, Eisen O, Eisermann H, Ferraccioli F, Field E, Forsberg R, Franke S, Goel V, Gogineni SP, Greenbaum J, Hills B, Hindmarsh RCA, Hoffman AO, Holschuh N, Holt JW, Humbert A, Jacobel RW, Jansen D, Jenkins A, Jokat W, Jong L, Jordan TA, King EC, Kohler J, Krabill W, Maton J, Kusk Gillespie M, Langley K, Lee J, Leitchenkov G, Leuschen C, Luyendyk B, MacGregor J, MacKie E, Moholdt G, Matsuoka K, Morlighem M, Mouginot J, Nitsche FO, Nost OA, Paden J, Pattyn F, Popov S, Rignot E, Rippin DM, Rivera A, Roberts JL, Ross N, Ruppel A, Schroeder DM, Siegert MJ, Smith AM, Steinhage D, Studinger M, Sun B, Tabacco I, Tinto KJ, Urbini S, Vaughan DG, Wilson DS, Young DA, Zirizzotti A
Publication type: Article
Publication status: Published
Journal: Scientific Data
Year: 2025
Volume: 12
Print publication date: 10/03/2025
Online publication date: 10/03/2025
Acceptance date: 18/02/2025
Date deposited: 11/03/2025
ISSN (electronic): 2052-4463
Publisher: Springer Nature
URL: https://doi.org/10.1038/s41597-025-04672-y
DOI: 10.1038/s41597-025-04672-y
Data Access Statement: Data underpinning the article are available at https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01615
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