Lamont Doherty Earth Observatory
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ICE Bridge

airborne geophysics image
PI(s): 
Robin E. Bell
PI(s): 
James R. Cochran

 The Ice Sheets at both poles are changing - shrinking at increasing rates - rates that are faster than was ever expected by scientists.

Website: 
ICE Bridge - Bridging the Gap: Measuring the Changing Poles

AGAP: Exploring the Gamburtsev Subglacial Mountains in Antarctica during the International Polar Year

PI(s): 
Robin E. Bell

Scientists from several nations are working together to launch a flagship program to explore a major mountain range buried by a large continental ice sheet and bounded by numerous subglacial lakes.

Website: 
AGAP: Antarctica's Gamburtsev Province

GAMBIT: Gamburtsev Aerogeophysical Mapping of Bedrock and Ice Targets

PI(s): 
Robin E. Bell

Using geophysical instruments, GAMBIT will peal back more than 600 meters of ice to explore the last hidden mountain range on Earth.

Website: 
GAMBIT - Antarctic Research: Peering Through the Ice

Paleoecology Laboratory

PI(s): 
Dorothy M. Peteet

Describes global research using vegetation shifts to reconstruct local and regional changes in the landscape due to climate and/or anthropogenic influence.

Website: 
Paleoecology Laboratory

Lake Vostok

PI(s): 
Robin E. Bell

Lake Vostok: A Curiosity or a Focus for Interdisciplinary Study?   A workshop sponsored by  U.S. National Science Foundation. 

Website: 
Lake Vostok

Location

United States
78° 27' 0" S, 106° 47' 60" W
See map: Google Maps

Lamont-Doherty Core Repository

PI(s): 
Maureen Raymo

The Lamont-Doherty Core Repository is both an archive of sediment (some terrestrial), rocks and coral from beneath the ocean floor, and an archive of the digital data pertaining to the material. They are used for research in climate, environment, many other studies, and for education.

Please click below to be taken directly to the Repository site.

Website: 
Lamont-Doherty Core Repository

Antarctic and Southern Ocean Data Portal

PI(s): 
Suzanne M. Carbotte

The Antarctic and Southern Ocean Data Portal provides access to geoscience data, primarily marine, from the Antarctic region.

Website: 
Antarctic and Southern Ocean Data Portal

Location

United States
81° 20' 5.4384" S, 97° 12' 25.3116" W
See map: Google Maps
 

Name Title Fields of interest
Gordon Bromley Postdoctoral Research Fellow Glacial geomorphology, palaeoclimate of the tropics and Antarctica, tropical glaciers and hydrology
Dorothy M. Peteet Adjunct Senior Research Scientist Paleoclimate, paleoecology, climate modeling, wetland carbon storage, palynology.
Michael Kaplan Lamont Assistant Research Professor Quaternary and glacial geology, geomorphology, geochronology, paleoclimatology, ice sheet dynamics, limnogeology, cosmogenic surface exposure dating
 

  • Scientists Predict Faster Retreat for Antarctica’s Thwaites Glacier
    October 26, 2011

    The retreat of Antarctica’s fast-flowing Thwaites Glacier is expected to speed up within 20 years, once the glacier detaches from an underwater ridge that is currently holding it back, says a new study in Geophysical Research Letters.

    Thwaites Glacier, which drains into west Antarctica’s Amundsen Sea, is being closely watched for its potential to raise global sea levels as the planet warms. Neighboring glaciers in the Amundsen region are also thinning rapidly, including Pine Island Glacier and the much larger Getz Ice Shelf. The study is the latest to confirm the importance of seafloor topography in predicting how these glaciers will behave in the near future.


  • Ocean Currents Speed Melting Of Antarctic Ice
    PIG-upwell350.jpg
    June 24, 2011

    Stronger ocean currents beneath West Antarctica’s Pine Island Glacier Ice Shelf are eroding the ice from below, speeding the melting of the glacier as a whole, according to a new study in Nature Geoscience. A growing cavity beneath the ice shelf has allowed more warm water to melt the ice, the researchers say—a process that feeds back into the ongoing rise in global sea levels. The glacier is currently sliding into the sea at a clip of four kilometers (2.5 miles) a year, while its ice shelf is melting at about 80 cubic kilometers a year - 50 percent faster than it was in the early 1990s - the paper estimates.

  • No Longer Anchored, Antarctic Ice Stream Surges to Sea
    June 21, 2010

    Satellite tracking has shown that the Pine Island Glacier, one of Antarctica's largest ice streams, is accelerating and thus contributing a growing share of the melt water raising sea levels worldwide. A team of scientists visiting the region last year discovered one reason for the speed-up...

  • Ice Age Ocean Circulation Reacted to, did not cause, Climate Change at Glacial Boundaries
    conveyor_belt.gif
    April 07, 2005

    Scientists from the Lamont Doherty Earth Observatory (LDEO) have provided new evidence that ocean circulation changes lagged behind, and were not the cause of, major climate changes at the beginning and end of the last ice age (short intervals known as glacial boundaries), according to a study published in the March 2005 issue of Science magazine.

 
alibraryofmud.jpg A Library of Mud NPR Science Friday, Jan. 31, 2009
 
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