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The Microstructural Location and Effects of Impurities in Polar Ice Cores
Entry ID: baker_0440523

Abstract: This award supports a project to fully characterize the microstructure in ice cores, in particular the microstructural locations of impurities, defect structures and strain gradients. This work will complement the optical observations, electrical conductivity measurements, and precise, detailed measurements of the soluble ion and gas contents that are performed by others. The project will use both ... View entire text
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Description: NSF Award #0440523 Abstract
Geographic Coverage
Spatial coordinates   
  N: 72.6   S: 72.6   E: -38.5   W: -38.5
Min Altitude: 3230 Max Altitude: 3230
Min Depth: 94/0.094 Max Depth: 2850/2.85
  N: -78.5   S: -78.5   E: 106.8   W: 106.8
Min Altitude: 3488 Max Altitude: 3488
Min Depth: 97/.0.097 Max Depth: 3416.56/3.416
  N: -81.7   S: -81.7   E: -148.82   W: -148.82
Min Altitude: 100/.01 Max Altitude: 100/.01
Min Depth: 640.123/0.6401 Max Depth: 790.35/0.7935
  N: 72.6   S: 72.6   E: -38.5   W: -38.5
Min Altitude: 3200/3.2 Max Altitude: 3200/3.2
Min Depth: 90/0.09 Max Depth: 90/0.09

Temporal Coverage
Start Date: 2002-01-01
Stop Date: 2006-05-30
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LABORATORY Ancillary Description
Data Set Progress
Originating Center
Data Center
NSIDC Antarctic Glaciological Data Center Supplemental Info
Data Center URL:

Data Center Personnel
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
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Phone: 603-646-2184
Fax: 603-646-9024
Email: Ian.Baker at
Contact Address:
Thayer School of Engineering
Dartmouth College
8000 Cummings Hall
City: Hanover
Province or State: NH
Postal Code: 03755-8000
Country: USA
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R. Obbard, I. Baker and D. Iliescu (2006) "Grain Boundary Grooving in Ice in a Scanning Electron Microscope", Journal of Glaciology, vol. 52, no. 176, p. 169

R. Obbard, I. Baker and K. Sieg (2007) "Using Electron Backscatter Diffraction Patterns to Examine Recrystallization in Polar Ice Sheets", Journal of
Glaciology, vol. 52, no. 179, p. 546

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Creation and Review Dates
DIF Creation Date: 2009-09-01
Last DIF Revision Date: 2017-08-24