Earth  ID: 11274

Antarctica Exposed

Our understanding of what lies beneath the world's biggest ice sheet has taken another leap forward. Thanks to work led by the British Antarctic Survey, scientists have a new 3D map of Antarctica’s ice and bedrock. The map, called Bedmap2, incorporates millions of new measurements, including data collected by NASA's ICESat satellite and airborne Operation IceBridge mission. The result is a virtual reconstruction of the continent’s bedrock topography and ice layers captured in never-before-seen detail. Antarctica plays a large role in the global climate system. The melting and emptying of its ice into the sea influences ocean currents and the rate of sea level rise. By having a precise map of Antarctica’s mountains, ridges, slopes and valleys—all of which affect how fast the continent's ice travels across the ice sheet—scientists can better predict future rates of ice flow. Watch the video to learn more.
 

Related Story


For More Information

NASA.gov


Story Credits

Visualizers/Animators:
Cindy Starr (GST)
Greg Shirah (NASA/GSFC)
Horace Mitchell (NASA/GSFC)

Video Editors:
Cindy Starr (GST)
Jefferson Beck (USRA)

Narration:
Jefferson Beck (USRA)

Narrator:
Jefferson Beck (USRA)

Producer:
Jefferson Beck (USRA)

Lead Scientists:
William Krabill (NASA/GSFC Wallops)
Eric J. Rignot (NASA/JPL CalTech)
Peter Fretwell (British Antarctic Survey)
H. D. Pritchard (British Antarctic Survey)
D. G. Vaughan (British Antarctic Survey)
J. L. Bamber (School of Geographical Sciences, University of Bristol, UK)
N. E. Barrand (British Antarctic Survey)
R. Bell (Lamont-Doherty Earth Observatory of Columbia University)
C. Bianchi (Istituto Nazionale di Geofisica e Vulcanologia)
R. G. Bingham (School of Geosciences, University of Aberdeen)
Donald D. Blankenship (Institute for Geophysics, University of Texas at Austin)
G. Casassa (Centro de Estudios Cientificos)
G. Catania (Institute for Geophysics, University of Texas at Austin)
D. Callens (Laboratoire de Glaciologie, Universit)
H. Conway (Earth and Space Sciences, University of Washington)
A. J. Cook (Department of Geography, Swansea University)
H. F. J. Corr (British Antarctic Survey)
V. Damm (Federal Institute for Geosciences and Natural Resources)
R. Forsberg (National Space Institute, Technical University of Denmark)
Y. Gim (NASA/JPL CalTech)
P. Gogineni (Electrical Engineering and Computer Science, University of Kansas)
J. A. Griggs (School of Geographical Sciences, University of Bristol)
R. C. A. Hindmarsh (British Antarctic Survey)
P. Holmlund (Stockholm University)
J. W. Holt (Institute for Geophysics, University of Texas at Austin)
R. W. Jacobel (St. Olaf College)
A. Jenkins (British Antarctic Survey)
Wilfried Jokat (Alfred Wegener Institute)
T. Jordan (British Antarctic Survey)
E. C. King (British Antarctic Survey)
J. Kohler (Norwegian Polar Institute, Fram Centre)
M. Riger-Kusk (College of Science, University of Canterbury)
K. A. Langley (Department of Geosciences, University of Oslo)
G. Leitchenkov (Institute for Geology and Mineral Resources of the World Ocean)
C. Leuschen (Electrical Engineering and Computer Science, University of Kansas)
B. P. Luyendyk (Earth Research Institute, University of California, Santa Barbara)
Kenichi Matsuoka (Norwegian Polar Institute)
Jeremie Mouginot (University of California, Irvine)
F. O. Nitsche (Lamont-Doherty Earth Observatory of Columbia University)
Y. Nogi (National Institute of Polar Research)
O. A. Nost (Norwegian Polar Institute)
S. V. Popov (Polar Marine Geosurvey Expedition)
D. M. Rippin (Environment Department, University of York)
A. Rivera (Centro de Estudios Cientificos)
J. Roberts (Department of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division)
N. Ross (School of Geography, Politics and Sociology, Newcastle University)
M. J. Siegert (School of Geographical Sciences, University of Bristol)
A. M. Smith (British Antarctic Survey)
Daniel Steinhage (Alfred Wegener Institute)
Michael Studinger (NASA/GSFC)
Bo Sun (Polar Research Institute of China)
B. K. Tinto (Lamont-Doherty Earth Observatory of Columbia University)
B. C. Welch (Alfred Wegener Institute)
D. Wilson (Instituite for Crustal Studies, University of California)
Duncan A. Young (Institute for Geophysics, University of Texas)
C. Xiangbin (Polar Research Institute of China)
A. Zirizzotti (Istituto Nazionale di Geofisica e Vulcanologia)

Lead Writer:
Jefferson Beck (USRA)

Please give credit for this item to:
NASA's Goddard Space Flight Center

Short URL to share this page:
https://svs.gsfc.nasa.gov/11274

Keywords:
DLESE >> Narrated
SVS >> App
NASA Science >> Earth