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Record Search Query:
Collaborative Research: Characterization of Upstream Ice and Firn Dynamics affecting the South Pole Ice Core
Entry ID: USAP-1443471_1

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Summary
Abstract:

Ice-core records are critical to understanding past climate variations. An Antarctic ice core currently being drilled at the South Pole will allow detailed investigation of atmospheric gases and fill an important gap in understanding the pattern of climate variability across Antarctica. Critical to the interpretation of any ice core are: 1) accurate chronologies for both the ice and the trapped ...


Ice-core records of stable isotopes, aerosol-born particles, and atmospheric gases are critical to understanding past climate variations. The proposed research will improve the ice and gas chronologies in the South Pole ice core by making in situ measurements of firn compaction in the upstream catchment to constrain models of the gas-age ice-age difference. The firn measurements will be a key data set needed to form a constitutive relationship for firn, and will drive better understanding and prediction of transient firn evolution. The research team will measure the modern gradients in accumulation rate, surface temperature, and water stable isotopes in the upstream catchment to separate spatial (advection) variations from temporal (climate) variations in the ice-core records. The ice-flow measurements will define the flowline upstream of the drill site, assess spatial gradients in accumulation, and infer histories of accumulation from radar-observed internal layers. Results will directly enhance interpretation of South Pole ice-core records, and also advance understanding of firn densification and drive next-generation firn models.


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Description: NSF Award Abstract
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Data Set Citation
Version: 1
Temporal Coverage
Start Date: 2015-09-01T00:00:00.000Z
Stop Date: 2020-08-31T23:59:59.999Z
Location Keywords
Instrument
Not applicable
Ancillary Keywords
Data Set Progress
COMPLETE
Data Center
United States Antarctic Program Data Center
Data Center URL: http://www.usap-dc.org/

Data Center Personnel
Name: Data Manager
Email: info at usap-dc.org
Contact Address:
Lamont-Doherty Earth Observatory
61 Route 9W
City: Palisades
Province or State: NY
Postal Code: 10964
Country: USA
Personnel
Michelle Koutnik
Role: INVESTIGATOR
Email: mkoutnik at uw.edu
Contact Address:
University of Washington
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2018-06-14
Last DIF Revision Date: 2018-10-23