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Physical Properties of the US ITASE Firn and Ice Cores from South Pole to Taylor Dome Entry ID: meese_0538494 |
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Summary
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Abstract:
This award supports a project for physical properties research on snow pits and firn/ice cores with specific objectives that include stratigraphic analysis including determination of accumulation rates, annual layers, depth hoar, ice and wind crusts and rates of grain growth with depth. Studies of firn densification rates and how these parameters relate to the meteorology and climatology over the last 200 years of snow accumulation in Antarctica will also be investigated. The project will also determine the seasonality of accumulation by co-registration of stratigraphy and chemistry and determination of chemical species at the grain boundaries, how these may change with depth/densification (and therefore temperature), precipitation, and may affect grain growth. Fabric analyses will be made, including variation with depth, location on undulations and if any variation exists with climate/chemistry. The large spatial coverage of the US ITASE program offers the opportunity to determine how these parameters are affected by a large range of temperature, precipitation and topographic effects.
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Related URL
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Link:
VIEW PROFESSIONAL HOME PAGE
Link: VIEW RELATED INFORMATION Description: NSF Award #0538494 Abstract Link: VIEW RELATED INFORMATION Description: Microstructural Location and Composition of Impurities in Polar Ice Cores |
Location Keywords
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CONTINENT
> ANTARCTICA
GEOGRAPHIC REGION > POLAR |
Science Keywords
| CRYOSPHERE >GLACIERS/ICE SHEETS >ICE SHEETS [Definition] |
| CRYOSPHERE >SNOW/ICE >SNOW DENSITY [Definition] |
| CRYOSPHERE >SNOW/ICE [Definition] |
| PALEOCLIMATE >ICE CORE RECORDS >ICE CORE AIR BUBBLES [Definition] |
| PALEOCLIMATE >ICE CORE RECORDS >PARTICULATE MATTER [Definition] |
| PALEOCLIMATE >ICE CORE RECORDS [Definition] |
| CRYOSPHERE >SNOW/ICE >SNOW STRATIGRAPHY [Definition] |
| CRYOSPHERE >SNOW/ICE >SNOW/ICE CHEMISTRY [Definition] |
| CRYOSPHERE >GLACIERS/ICE SHEETS [Definition] |
| CRYOSPHERE >GLACIERS/ICE SHEETS >FIRN [Definition] |
ISO Topic Category
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CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
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Platform
| FIELD SURVEYS [Information] |
| LABORATORY [Information] |
| FIELD INVESTIGATION [Information] |
Instrument
| MICROSCOPES [Information] |
| SCANNING ELECTRON MICROSCOPES [Information] |
Project
| NSF/OPP >Office of Polar Programs, National Science Foundation [Information] |
| ITASE >INTERNATIONAL TRANS ANTARCTIC SCIENTIFIC EXPEDITION [Information] |
Keywords
| U.S. ITASE |
| snow pits |
| firn core |
| firn |
| ice core |
| chemistry |
| stratigraphic analysis |
| firn densification |
| accumulation rates |
| annual layers |
| depth hoar |
| grain growth |
Data Set Progress
| IN WORK |
Originating Center
| Climate Change Institute, University of Maine, Orono |
Data Center
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National Snow and Ice Data Center
[Information]
Data Center URL: http://nsidc.org
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NSIDC Antarctic Glaciological Data Center
[Information]
Data Center URL: http://nsidc.org/agdc/
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Personnel
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DEBRA
MEESE Role: INVESTIGATOR Email: debra.meese at maine.edu Contact Address: Climate Change Institute University of Maine City: Orono Province or State: ME Postal Code: 04469 Country: USA |
Publications/References
Spaulding, N, D.A. Meese, I. Baker, P.A. Mayewski, G.S. Hamilton, A new technique for firn grain-size measurement using SEM image analysis, Journal of Glaciology, 55(195):12-19.
Baker, I., K. Sieg, N. Spaulding and D. Meese. "Advanced Electron Microscopy Techniques for Studying Ice and Firn Cores," Proceedings of the 10th International Symposium on Antarctic Earth Sciences, 2007.
Baker, I., R.W. Obbard, D. Iliescu and D. Meese. "Microstructural Characterization of Firn," Proceedings of the 63rd Eastern Snow Conference, 2006.
Baker, I., R.W. Obbard, D. Iliescu and D. Meese. "Microstructural Characterization of Firn," Hydrological Processes, v.21, 2007, p. 1624.
Baker, I., K. Sieg, N. Spaulding and D. Meese. "Advanced Electron Microscopy Techniques for Studying Ice and Firn Cores," Proceedings of the 10th International Symposium on Antarctic Earth Sciences, 2007.
Baker, I., R.W. Obbard, D. Iliescu and D. Meese. "Microstructural Characterization of Firn," Proceedings of the 63rd Eastern Snow Conference, 2006.
Baker, I., R.W. Obbard, D. Iliescu and D. Meese. "Microstructural Characterization of Firn," Hydrological Processes, v.21, 2007, p. 1624.
Creation and Review Dates
DIF Creation Date:
2010-06-03
Last DIF Revision Date:
2010-07-20
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