[Sensor_Name: Short_Name='SCANNING ELECTRON MICROSCOPES']
Physical Properties of the US ITASE Firn and Ice Cores from South Pole to Taylor DomeEntry ID: meese_0538494
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.
CRYOSPHERE > GLACIERS/ICE SHEETS > ICE SHEETS
CRYOSPHERE > SNOW/ICE > SNOW DENSITY
CRYOSPHERE > SNOW/ICE
PALEOCLIMATE > ICE CORE RECORDS > ICE CORE AIR BUBBLES
PALEOCLIMATE > ICE CORE RECORDS > PARTICULATE MATTER
PALEOCLIMATE > ICE CORE RECORDS
CRYOSPHERE > SNOW/ICE > SNOW STRATIGRAPHY
CRYOSPHERE > SNOW/ICE > SNOW/ICE CHEMISTRY
CRYOSPHERE > GLACIERS/ICE SHEETS
CRYOSPHERE > GLACIERS/ICE SHEETS > FIRN
ISO Topic Category
Data Set Progress
Email: debra.meese at maine.edu
Climate Change Institute University of Maine
Province or State: ME
Postal Code: 04469
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.
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Creation and Review Dates
DIF Creation Date: 2010-06-03
Last DIF Revision Date: 2016-01-27