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Investigation of the Stratigraphy and Time Scale of the WAIS Divide Ice Core Using Electrical Methods Entry ID: taylor_0440819 |
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Summary
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Abstract:
This award supports a project that is part of the West Antarctic Ice Sheet Divide (WAIS Divide) program; which is a multi-disciplinary multi-institutional program to investigate the causes of natural changes in climate, the influence of the West Antarctic ice sheet on sea level, and the biology of deep ice. The WAIS Divide core will be unique among Antarctic ice cores in that it will have discernable annual layers for the last 40,000 years.
Purpose: A critical element of the program is to determine the age of the ice so that the climate proxies measured on the core can be interpreted in terms of age, not just depth. This project will make electrical measurements that can identify the annual layers. This information will be combined with information from other investigators to develop an annually resolved timescale over the last 40,000 years. This timescale will be the foundation on which the recent climate records are interpreted. Electrical measurements will also be used to produce two-dimensional images of the ice core stratigraphy; allowing sections of the core with abnormal stratigraphy to be identified. |
Related URL
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Link:
VIEW PROJECT HOME PAGE
Description: The U.S research community is conducting a deep ice coring project in West Antarctica for studies of climate, ice sheet history and cryobiology. This project is collecting a deep ice core from the West Antarctic Ice Sheet (WAIS) ice flow divide and integrating approximately 40 separate but synergistic projects to analyze the ice and interpret the records. |
Geographic Coverage
| N: -79.46667 | S: -79.46667 | E: 112.1 | W: 112.1 |
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Location Keywords
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GEOGRAPHIC REGION
> POLAR
CONTINENT > ANTARCTICA |
Science Keywords
| CRYOSPHERE >GLACIERS/ICE SHEETS [Definition] |
| CRYOSPHERE >SNOW/ICE [Definition] |
| PALEOCLIMATE >ICE CORE RECORDS [Definition] |
| PALEOCLIMATE >ICE CORE RECORDS >ELECTRICAL PROPERTIES [Definition] |
| CRYOSPHERE >SNOW/ICE >SNOW STRATIGRAPHY [Definition] |
| CRYOSPHERE >SNOW/ICE >SNOW/ICE TEMPERATURE [Definition] |
ISO Topic Category
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CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
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Platform
| FIELD INVESTIGATION [Information] |
| FIELD SURVEYS [Information] |
| LABORATORY [Information] |
Instrument
| CORING DEVICES [Information] |
Project
| WAISDIVIDE >West Antarctic Ice Sheet Divide Project |
| NSF/OPP >Office of Polar Programs, National Science Foundation [Information] |
Keywords
| Antarctic |
| ice core |
| WAIS |
| Stratigraphy |
| time scale |
| electrical measurements |
| annual layers |
| climate proxies |
| Glaciology |
| paleotemperature |
| ice sheet |
Data Set Progress
| IN WORK |
Originating Center
| University of Nevada Desert Research Institute |
Data Center
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NSIDC Antarctic Glaciological Data Center
[Information]
Data Center URL: http://nsidc.org/agdc/
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National Ice Core Laboratory Science Management Office, Climate Change Research Center, Institute for the Study of Earth, Oceans, and Space, University of New Hampshire
[Information]
Data Center URL: http://www.nicl-smo.sr.unh.edu/index.html
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National Snow and Ice Data Center
[Information]
Data Center URL: http://nsidc.org
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Personnel
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KENDRICK
TAYLOR Role: INVESTIGATOR Email: kendrick.taylor at dri.edu Contact Address: Desert Research Institute Division of Hydrologic Sciences 2215 Raggio Parkway City: Reno Province or State: NV Postal Code: 89512 Country: USA |
Publications/References
Banta, J.R., J.R. McConnell, M.M. Frey, R.C. Bales, and K. Taylor. "Spatial and temporal variability in snow accumulation at the West Antarctic Ice Sheet Divide over recent centuries," JGR, v.113, 2008.
McGwire, K.C., J.R. McConnell, R.B. Alley, J.R. Banta, G.M. Hargreaves, and K.C. Taylor. "Dating Annual Layers of a Shallow Antarctic Ice Core with an Optical Scanner," Jounral of Glaciology, v.5, 2008, p. 831.
Severinghaus, JP; Beaudette, R; Headly, MA; Taylor, K; Brook, EJ. "Oxygen-18 of O-2 Records the Impact of Abrupt Climate Change on the Terrestrial Biosphere," SCIENCE, v.324, 2009, p. 1431-1434.
McGwire, K.C., J.R. McConnell, R.B. Alley, J.R. Banta, G.M. Hargreaves, and K.C. Taylor. "Dating Annual Layers of a Shallow Antarctic Ice Core with an Optical Scanner," Jounral of Glaciology, v.5, 2008, p. 831.
Severinghaus, JP; Beaudette, R; Headly, MA; Taylor, K; Brook, EJ. "Oxygen-18 of O-2 Records the Impact of Abrupt Climate Change on the Terrestrial Biosphere," SCIENCE, v.324, 2009, p. 1431-1434.
Creation and Review Dates
DIF Creation Date:
2012-06-19
Last DIF Revision Date:
2012-07-12
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