2012-2013 Science Planning Summaries
U.S. Antarctic Program - Science Support Section United States Antarctic Program United States Antarctic Program Logo National Science Foundation Logo
Continuation of the LARISSA continuous GPS network in view of observed dynamic response to Antarctic Peninsula mass balance and required geologic constraints

Program Manager:
Dr. Paul Cutler

NSF/PLR Award 1143981

ASC POC/Implementer:
Addie Coyac / Robert Kluckhohn

Dr. Eugene Domack (Principal Investigator)

University of South Florida
College of Marine Science
St. Petersburg, Florida

Supporting Stations:  Special Project, ARSV Laurence M. Gould
Research Locations:  Antarctic Peninsula

Project Description:
This interdisciplinary field program addresses the rapid, system-level changes now taking place in the Larsen B Embayment, Weddell Sea region of the Antarctic Peninsula, where the ice shelf underwent a spectacular collapse in 2002. Ice core scientists, glaciologists, oceanographers, marine geologists and biologists are collaborating to characterize the effects of the collapse on the marine ecosystem as well as on glacial dynamics and interactions between the ocean, ice, geology and biology. The project aims to place these changes in the context of past changes in the region occurring on timescales ranging from decadal to the penultimate interglacial (125,000 years before present) when it is thought to have been warmer, and the sea level higher, than today.

Field Season Overview:
Six participants will deploy onboard LMG12-11 for five science days of ship time aboard the ARSV Laurence M. Gould. Their tasking includes installing new cGPS stations and upgrading existing ones, obtain sediment cores (Kasten and jumbo pisten) along the southern Gerlache Grounding Line, and deploy the yoyo digital bottom camera in Brialmont Cove (near Spring Point). Throughout much of the work they will also collect water samples using pumps or CTDs.

Deploying Team Members:

  • Eugene Domack (PI)
  • Deanna Nappi
  • Brad Rosenheim
  • Amelia Shevenell
  • Catherine Smith

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Curator: Esther L. Hill PhD, Antarctic Support Contract   |   NSF Official: Alexandra Isern, Office of Polar Programs