Bedmap3 updated ice bed, surface and thickness gridded datasets for Antarctica

Hamish D. Pritchard; Peter T. Fretwell; Alice C. Fremand; Julien A. Bodart; James D. Kirkham; Alan Aitken; Jonathan Bamber; Robin Bell; Cesidio Bianchi; Robert G. Bingham; Donald D. Blankenship; Gino Casassa; Knut Christianson; Howard Conway; Hugh F. J. Corr; Xiangbin Cui; Detlef Damaske; Volkmar Damm; Boris Dorschel; Reinhard Drews; Graeme Eagles; Olaf Eisen; Hannes Eisermann; Fausto Ferraccioli; Elena Field; René Forsberg; Steven Franke; Vikram Goel; Siva Prasad Gogineni; Jamin Greenbaum; Benjamin Hills; Richard C. A. Hindmarsh; Andrew O. Hoffman; Nicholas Holschuh; John W. Holt; Angelika Humbert; Robert W. Jacobel; Daniela Jansen; Adrian Jenkins; Wilfried Jokat; Lenneke Jong; Tom A. Jordan; Edward C. King; Jack Kohler; William Krabill; Joséphine Maton; Mette Kusk Gillespie; Kirsty Langley; Joohan Lee; German Leitchenkov; Cartlon Leuschen; Bruce Luyendyk; Joseph A. MacGregor; Emma MacKie; Geir Moholdt; Kenichi Matsuoka; Mathieu Morlighem; Jérémie Mouginot; Frank O. Nitsche; Ole A. Nost; John Paden; Frank Pattyn; Sergey Popov; Eric Rignot; David M. Rippin; Andrés Rivera; Jason L. Roberts; Neil Ross; Antonia Ruppel; Dustin M. Schroeder; Martin J. Siegert; Andrew M. Smith; Daniel Steinhage; Michael Studinger; Bo Sun; Ignazio Tabacco; Kirsty J. Tinto; Stefano Urbini; David G. Vaughan; Douglas S. Wilson; Duncan A. Young; Achille Zirizzotti

doi:10.1038/s41597-025-04672-y

Bedmap3 updated ice bed, surface and thickness gridded datasets for Antarctica

Hamish D. Pritchard^*, Peter T. Fretwell^*, Alice C. Fremand, Julien A. Bodart, James D. Kirkham, Alan Aitken, Jonathan Bamber, Robin Bell, Cesidio Bianchi, Robert G. Bingham, Donald D. Blankenship, Gino Casassa, Knut Christianson, Howard Conway, Hugh F. J. Corr, Xiangbin Cui, Detlef Damaske, Volkmar Damm, Boris Dorschel, Reinhard DrewsGraeme Eagles, Olaf Eisen, Hannes Eisermann, Fausto Ferraccioli, Elena Field, René Forsberg, Steven Franke, Vikram Goel, Siva Prasad Gogineni, Jamin Greenbaum, Benjamin Hills, Richard C. A. Hindmarsh, Andrew O. Hoffman, Nicholas Holschuh, John W. Holt, Angelika Humbert, Robert W. Jacobel, Daniela Jansen, Adrian Jenkins, Wilfried Jokat, Lenneke Jong, Tom A. Jordan, Edward C. King, Jack Kohler, William Krabill, Joséphine Maton, Mette Kusk Gillespie, Kirsty Langley, Joohan Lee, German Leitchenkov, Cartlon Leuschen, Bruce Luyendyk, Joseph A. MacGregor, Emma MacKie, Geir Moholdt, Kenichi Matsuoka, Mathieu Morlighem, Jérémie Mouginot, Frank O. Nitsche, Ole A. Nost, John Paden, Frank Pattyn, Sergey Popov, Eric Rignot, David M. Rippin, Andrés Rivera, Jason L. Roberts, Neil Ross, Antonia Ruppel, Dustin M. Schroeder, Martin J. Siegert, Andrew M. Smith, Daniel Steinhage, Michael Studinger, Bo Sun, Ignazio Tabacco, Kirsty J. Tinto, Stefano Urbini, David G. Vaughan, Douglas S. Wilson, Duncan A. Young, Achille Zirizzotti

^*Corresponding author for this work

Geography and Environmental Sciences Department

Research output: Contribution to journal › Article › peer-review

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Abstract

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.

Original language	English
Article number	414
Pages (from-to)	1-20
Number of pages	20
Journal	Scientific data
Volume	12
Issue number	1
DOIs	https://doi.org/10.1038/s41597-025-04672-y
Publication status	Published - 10 Mar 2025

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Pritchard, H. D., Fretwell, P. T., Fremand, A. C., Bodart, J. A., Kirkham, J. D., Aitken, A., Bamber, J., Bell, R., Bianchi, C., Bingham, R. G., Blankenship, D. D., Casassa, G., Christianson, K., Conway, H., Corr, H. F. J., Cui, X., Damaske, D., Damm, V., Dorschel, B., ... Zirizzotti, A. (2025). Bedmap3 updated ice bed, surface and thickness gridded datasets for Antarctica. Scientific data, 12(1), 1-20. Article 414. https://doi.org/10.1038/s41597-025-04672-y

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abstract = "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{\textquoteright}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 = "Pritchard, {Hamish D.} and Fretwell, {Peter T.} and Fremand, {Alice C.} and Bodart, {Julien A.} and Kirkham, {James D.} and Alan Aitken and Jonathan Bamber and Robin Bell and Cesidio Bianchi and Bingham, {Robert G.} and Blankenship, {Donald D.} and Gino Casassa and Knut Christianson and Howard Conway and Corr, {Hugh F. J.} and Xiangbin Cui and Detlef Damaske and Volkmar Damm and Boris Dorschel and Reinhard Drews and Graeme Eagles and Olaf Eisen and Hannes Eisermann and Fausto Ferraccioli and Elena Field and Ren{\'e} Forsberg and Steven Franke and Vikram Goel and Gogineni, {Siva Prasad} and Jamin Greenbaum and Benjamin Hills and Hindmarsh, {Richard C. A.} and Hoffman, {Andrew O.} and Nicholas Holschuh and Holt, {John W.} and Angelika Humbert and Jacobel, {Robert W.} and Daniela Jansen and Adrian Jenkins and Wilfried Jokat and Lenneke Jong and Jordan, {Tom A.} and King, {Edward C.} and Jack Kohler and William Krabill and Jos{\'e}phine Maton and Gillespie, {Mette Kusk} and Kirsty Langley and Joohan Lee and German Leitchenkov and Cartlon Leuschen and Bruce Luyendyk and MacGregor, {Joseph A.} and Emma MacKie and Geir Moholdt and Kenichi Matsuoka and Mathieu Morlighem and J{\'e}r{\'e}mie Mouginot and Nitsche, {Frank O.} and Nost, {Ole A.} and John Paden and Frank Pattyn and Sergey Popov and Eric Rignot and Rippin, {David M.} and Andr{\'e}s Rivera and Roberts, {Jason L.} and Neil Ross and Antonia Ruppel and Schroeder, {Dustin M.} and Siegert, {Martin J.} and Smith, {Andrew M.} and Daniel Steinhage and Michael Studinger and Bo Sun and Ignazio Tabacco and Tinto, {Kirsty J.} and Stefano Urbini and Vaughan, {David G.} and Wilson, {Douglas S.} and Young, {Duncan A.} and Achille Zirizzotti",

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doi = "10.1038/s41597-025-04672-y",

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Pritchard, HD, Fretwell, PT, 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, Cui, X, Damaske, D, Damm, 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, Gillespie, MK, Langley, K, Lee, J, Leitchenkov, G, Leuschen, C, Luyendyk, B, MacGregor, JA, 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 2025, 'Bedmap3 updated ice bed, surface and thickness gridded datasets for Antarctica', Scientific data, vol. 12, no. 1, 414, pp. 1-20. https://doi.org/10.1038/s41597-025-04672-y

TY - JOUR

T1 - Bedmap3 updated ice bed, surface and thickness gridded datasets for Antarctica

AU - Pritchard, Hamish D.

AU - Fretwell, Peter T.

AU - Fremand, Alice C.

AU - Bodart, Julien A.

AU - Kirkham, James D.

AU - Aitken, Alan

AU - Bamber, Jonathan

AU - Bell, Robin

AU - Bianchi, Cesidio

AU - Bingham, Robert G.

AU - Blankenship, Donald D.

AU - Casassa, Gino

AU - Christianson, Knut

AU - Conway, Howard

AU - Corr, Hugh F. J.

AU - Cui, Xiangbin

AU - Damaske, Detlef

AU - Damm, Volkmar

AU - Dorschel, Boris

AU - Drews, Reinhard

AU - Eagles, Graeme

AU - Eisen, Olaf

AU - Eisermann, Hannes

AU - Ferraccioli, Fausto

AU - Field, Elena

AU - Forsberg, René

AU - Franke, Steven

AU - Goel, Vikram

AU - Gogineni, Siva Prasad

AU - Greenbaum, Jamin

AU - Hills, Benjamin

AU - Hindmarsh, Richard C. A.

AU - Hoffman, Andrew O.

AU - Holschuh, Nicholas

AU - Holt, John W.

AU - Humbert, Angelika

AU - Jacobel, Robert W.

AU - Jansen, Daniela

AU - Jenkins, Adrian

AU - Jokat, Wilfried

AU - Jong, Lenneke

AU - Jordan, Tom A.

AU - King, Edward C.

AU - Kohler, Jack

AU - Krabill, William

AU - Maton, Joséphine

AU - Gillespie, Mette Kusk

AU - Langley, Kirsty

AU - Lee, Joohan

AU - Leitchenkov, German

AU - Leuschen, Cartlon

AU - Luyendyk, Bruce

AU - MacGregor, Joseph A.

AU - MacKie, Emma

AU - Moholdt, Geir

AU - Matsuoka, Kenichi

AU - Morlighem, Mathieu

AU - Mouginot, Jérémie

AU - Nitsche, Frank O.

AU - Nost, Ole A.

AU - Paden, John

AU - Pattyn, Frank

AU - Popov, Sergey

AU - Rignot, Eric

AU - Rippin, David M.

AU - Rivera, Andrés

AU - Roberts, Jason L.

AU - Ross, Neil

AU - Ruppel, Antonia

AU - Schroeder, Dustin M.

AU - Siegert, Martin J.

AU - Smith, Andrew M.

AU - Steinhage, Daniel

AU - Studinger, Michael

AU - Sun, Bo

AU - Tabacco, Ignazio

AU - Tinto, Kirsty J.

AU - Urbini, Stefano

AU - Vaughan, David G.

AU - Wilson, Douglas S.

AU - Young, Duncan A.

AU - Zirizzotti, Achille

PY - 2025/3/10

Y1 - 2025/3/10

N2 - 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.

AB - 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.

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U2 - 10.1038/s41597-025-04672-y

DO - 10.1038/s41597-025-04672-y

M3 - Article

SN - 2052-4463

VL - 12

SP - 1

EP - 20

JO - Scientific data

JF - Scientific data

IS - 1

M1 - 414

ER -

Bedmap3 updated ice bed, surface and thickness gridded datasets for Antarctica

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