Collaborative With: McPhee 0732804, Holland 0732869, Truffer 0732730, Stanton 0732926, Anandakrishnan 0732844 Title: Collaborative Research: IPY: Ocean-Ice Interaction in the Amundsen Sea Sector of West Antarctica The Office of Polar Programs, Antarctic Integrated and System Science Program has made this award to support an interdisciplinary study of the effects of the ocean on the stability of glacial ice in the most dynamic region the West Antarctic Ice Sheet, namely the Pine Island Glacier in the Amundsen Sea Embayment. The collaborative project builds on the knowledge gained by the highly successful West Antarctic Ice Sheet program and is being jointly sponsored with NASA. Recent observations indicate a significant ice loss, equivalent to 10% of the ongoing increase in sea-level rise, in this region. These changes are largest along the coast and propagate rapidly inland, indicating the critical impact of the ocean on ice sheet stability in the region. While a broad range of remote sensing and ground-based instrumentation is available to characterize changes of the ice surface and internal structure (deformation, ice motion, melt) and the shape of the underlying sediment and rock bed, instrumentation has yet to be successfully deployed for observing boundary layer processes of the ocean cavity which underlies the floating ice shelf and where rapid melting is apparently occurring. Innovative, mini ocean sensors that can be lowered through boreholes in the ice shelf (about 500 m thick) will be developed and deployed to automatically provide ocean profiling information over at least three years. Their data will be transmitted through a conducting cable frozen in the borehole to the surface where it will be further transmitted via satellite to a laboratory in the US. Geophysical and remote sensing methods (seismic, GPS, altimetry, stereo imaging, radar profiling) will be applied to map the geometry of the ice shelf, the shape of the sub ice-shelf cavity, the ice surface geometry and deformations within the glacial ice. To integrate the seismic, glaciological and oceanographic observations, a new 3-dimensional coupled ice-ocean model is being developed which will be the first of its kind. NASA is supporting satellite based research and the deployment of a robotic-camera system to explore the environment in the ocean cavity underlying the ice shelf and NSF is supporting all other aspects of this study.
Science Keywords: |
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Spatial Extent: | Bounding Rectangle: N: -75.0427 S: -75.0427 E: -100.728 W: -100.728 |
Data Format(s): | n/a |
Temporal Extent: | Platform(s): | Not provided, COMPUTERS, FIELD INVESTIGATION, FIELD SURVEYS, LABORATORY, Aircraft, SATELLITES, LANDSAT-8, AUVS | |
Data Center(s): | NSIDC_AGDC, NSIDC | Instrument(s): | RADAR, SEISMIC REFLECTION PROFILERS |
Version: | Not provided |
Not provided
Active
Project Short Name | Campaigns | Project Dates |
---|---|---|
IPY | No campaigns listed. | No dates provided. |
AMUNDSEN SEA EMBAYMENT PLAN | No campaigns listed. | No dates provided. |
NSF/PLR | No campaigns listed. | No dates provided. |
Coverage Type | Zone Identifier | Geometry | Granule Representation |
---|---|---|---|
HORIZONTAL | CARTESIAN | NO_SPATIAL |
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
NASA
Goddard Space Flight Center
Mailstop 614.0
Greenbelt,
MD
20771
Jet Propulsion Laboratory
This contact does not have any contact mechanisms listed.
NASA Goddard Space Flight Center
8800 Greenbelt Road,
Greenbelt,
MD
20771
McPhee Research Company
450 Clover Springs Road
Naches,
WA
98937
509 658 2575
Center for Atmosphere Ocean Science
Courant Institute of Mathematical Sciences
New York University
New York,
NY
10012
Physics Department
University of Alaska Fairbanks
P.O. Box 755920, 401 ELV
Fairbanks,
AK
99775
Naval Postgraduate School
Oceanography Department
833 Dyer Road
Monterey,
CA
93943
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder,
CO
80309-0449
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder,
CO
80309-0449
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
Boulder,
CO
80309-0449
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