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

Pritchard, Hamish D.
[1]; 
Fretwell, Peter T.
[1]; 
Fremand, Alice C.
[1]; 
Bodart, Julien A.
[2]; 
Kirkham, James D.
[1]; 
Aitken, Alan
[3]; 
Bamber, Jonathan
[4]; 
Bell, Robin
[5]; 
Bianchi, Cesidio
[6]; 
Bingham, Robert G.
[7]; 
Blankenship, Donald D.
[8]; 
Casassa, Gino
[9]; 
Christianson, Knut
[10]; 
Conway, Howard
[10]; 
Corr, Hugh F. J.
[1]; 
Cui, Xiangbin
[11]; 
Damaske, Detlef
[12]; 
Damm, Volkmar
[12]; 
Dorschel, Boris
[13]; 
Drews, Reinhard
[14]; 
Eagles, Graeme
[13]; 
Eisen, Olaf
[13]; 
Eisermann, Hannes
[13]; 
Ferraccioli, Fausto
[1]; 
Field, Elena
[1]; 
Forsberg, Rene
[15]; 
Franke, Steven
[14]; 
Goel, Vikram
[16]; 
Gogineni, Siva Prasad
[17]; 
Greenbaum, Jamin
[8]; 
Hills, Benjamin
[18]; 
Hindmarsh, Richard C. A.
[1]; 
Hoffman, Andrew O.
[5]; 
Holschuh, Nicholas
[19]; 
Holt, John W.
[20]; 
Humbert, Angelika
[13]; 
Jacobel, Robert W.
[21]; 
Jansen, Daniela
[13]; 
Jenkins, Adrian
[22]; 
Jokat, Wilfried
[13]; 
Jong, Lenneke
[23]; 
Jordan, Tom A.
[1]; 
King, Edward C.
[1]; 
Kohler, Jack
[24]; 
Krabill, William
[25]; 
Maton, Josephine
[24]; 
Gillespie, Mette Kusk
[26]; 
Langley, Kirsty
[27]; 
Lee, Joohan
[28]; 
Leitchenkov, German
[29]; 
Leuschen, Cartlon
[30]; 
Luyendyk, Bruce
[31]; 
Macgregor, Joseph A.
[25]; 
Mackie, Emma
[32]; 
Moholdt, Geir
[24]; 
Matsuoka, Kenichi
[24]; 
Morlighem, Mathieu
[33]; 
Mouginot, Jeremie
[31]; 
Nitsche, Frank O.
[5]; 
Nost, Ole A.
[34]; 
Paden, John
[30]; 
Pattyn, Frank
[35]; 
Popov, Sergey
[36]; 
Rignot, Eric
[31]; 
Rippin, David M.
[37]; 
Rivera, Andres
[38]; 
Roberts, Jason L.
[23]; 
Ross, Neil
[39]; 
Ruppel, Antonia
[12]; 
Schroeder, Dustin M.
[40]; 
Siegert, Martin J.
[41]; 
Smith, Andrew M.
[1]; 
Steinhage, Daniel
[13]; 
Studinger, Michael
[25]; 
Sun, Bo
[11]; 
Tabacco, Ignazio
[6]; 
Tinto, Kirsty J.
[5]; 
Urbini, Stefano
[6]; 
Vaughan, David G.
[1]; 
Wilson, Douglas S.
[31]; 
Young, Duncan A.
[8]; 
Zirizzotti, Achille
[6]
  • 1
    UK Research & Innovation (UKRI)
  • 2
    University of Bern
  • 3
    University of Western Australia
  • 4
    University of Bristol
  • 5
    Columbia University
  • 6
    Istituto Nazionale Geofisica e Vulcanologia (INGV)
  • 7
    University of Edinburgh
  • 8
    University of Texas System
  • 9
    Universidad de Magallanes  
  • 10
    University of Washington
  • 11
    Polar Research Institute of China
  • 12
    Fed Inst Geosci & Nat Resources
  • 13
    Helmholtz Association
  • 14
    Eberhard Karls University of Tubingen
  • 15
    Technical University of Denmark
  • 16
    Ministry of Earth Sciences (MoES) - India
  • 17
    University of Alabama System
  • 18
    Colorado School of Mines
  • 19
    Amherst College
  • 20
    University of Arizona
  • 21
    Saint Olaf College
  • 22
    Northumbria University
  • 23
    Australian Antarctic Division
  • 24
    Norwegian Polar Institute
  • 25
    National Aeronautics & Space Administration (NASA)
  • 26
    Western Norway University of Applied Sciences
  • 27
    Asiaq
  • 28
    Korea Polar Research Institute (KOPRI)
  • 29
    Inst Geol & Mineral Resources World Ocean
  • 30
    University of Kansas
  • 31
    University of California System
  • 32
    State University System of Florida
  • 33
    Dartmouth College
  • 34
    Oceanbox Io
  • 35
    Universite Libre de Bruxelles
  • 36
    Polar Marine Geosurvey Expedit
  • 37
    University of York - UK
  • 38
    Universidad de Chile
  • 39
    Newcastle University - UK
  • 40
    Stanford University
  • 41
    University of Exeter
DOI
Date Issued
2025-03-10
Type
Artículo
Journal
Scientific data
ISSN
2052-4463
Open Access
gold
Volume
12
Links
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 degrees 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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