Siple Dome A (SDMA) Grain Orientation 640 - 790 Meters View Catalog Page Entry ID
NSIDC-0526
Summary
This data set characterizes the microstructure in ice cores, in particular the microstructural locations of impurities, grain orientations, and strain gradients. The fabric of polycrystalline ice is typically described using only the c-axis orientation, but this is insufficient for a full description of grain orientations in this hexagonal material. Thus, both the a-axis and c-axis are used in this data set showing pole figures for five depths of the Siple Dome (SDMA) core between 640 m and 790 m and misorientation angle distribution for the same grains.
Geographic Coverage
Spatial Coordinates: N: -81.66°
S: -81.66°
E: -148.82°
W: -148.82°
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Data Set Citation
Dataset Creator: Baker, I., R. Obbard, and K. Sieg. Dataset Title: Siple Dome A (SDMA) Grain Orientation 640 - 790 Meters Dataset Release Date: 2012-11-26 Dataset Release Place: Boulder, Colorado USA Dataset Publisher: NSIDC: National Snow and Ice Data Center Online Resource: http://nsidc.org/data/nsidc-0526.html Dataset DOI: http://dx.doi.org/10.7265/N53T9F5X
Temporal Coverage
Start Date: 2009-01-15 Stop Date: 2009-06-15
Paleo Temporal Coverage
Paleo Start Date: 12.92 kyrBP Paleo Stop Date: 33.39kyrBP
Location Keywords
- CONTINENT
ANTARCTICA
Science Keywords
- Cryosphere
Glaciers/Ice Sheets Glaciers
Ancillary Keywords
- Electron Backscatter Diffraction
- FEI XL30 Environmental Scanning Electron Microscope - Field Emission Gun (ESEM - FEG)
- Climatology/Meteorology/Atmosphere
Platform
Instrument
- SCANNING ELECTRON MICROSCOPES
Project
- NSF/OPP
Office of Polar Programs, National Science Foundation
Data Set Progress
complete
Originating Center
DARTMOUTH/THAYER
Data Center
National Snow and Ice Data Center Data Center URL: http://nsidc.org
Data Center Personnel
Name: NSIDC User Services Phone: 1 303 492-6199 Fax: 1 303 492-2468 Email: nsidc@nsidc.org Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA
NSIDC Antarctic Glaciological Data Center Data Center URL: http://nsidc.org/agdc/
Data Center Personnel
Name: NSIDC AGDC User Services Phone: 1 303 492-6199 Fax: 1 303 492-2468 Email: nsidc@nsidc.org Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder Province or State: CO Postal Code: 80309-0449 Country: USA
Distribution
Distribution Media: FTP Distribution Size: 329 KB Distribution Format: Microsoft Excel
Distribution Media: FTP Distribution Size: 138 KB Distribution Format: Microsoft Word
Personnel
Ian Baker Role: INVESTIGATOR Email: Ian.Baker@Dartmouth.edu Contact Address:
- Dartmouth University
- Thayer School of Engineering
- 8000 Cummings Hall
City: Hanover Province or State: NH Postal Code: 03755 Country: USA
Rachel Obbard Role: INVESTIGATOR Phone: 1 603 646-9613 x Email: Rachel.W.Obbard@Dartmouth.EDU Contact Address:
- Dartmouth University
- Thayer School of Engineering
- 8000 Cummings Hall
City: Hanover Province or State: NH Postal Code: 03755 Country: USA
Katherine Sieg Role: INVESTIGATOR Contact Address:
- Dartmouth University
- Thayer School of Engineering
- 14 Engineering Dr.
City: Hanover Province or State: NH Postal Code: 03755 Country: USA
Reference
Iliescu, D., I. Baker, and H. Chang. 2004. Determining the Orientations of Ice Crystals Using Electron Backscatter Patterns. Microsc. Res. Techn., 63(4), 183 - 187.
Obbard, R., I. Baker, and K. Sieg. 2006b. Using Electron Backscatter Diffraction Patterns to Examine Recrystallization in Polar Ice Sheets. Journal of Glaciology, 52(179), 546 - 557.
Rasband, W .S., Retzlaff, R. and C. R. Bentley. Image J Program. 2006. Bethesda, MA, National Institutes of Health.
R. W. Obbard, K. E. Sieg, I. Baker, D. Meese. 2011. Microstructural Evolution in the Fine-graine Region of the Siple Dome Ice Core. Journal of Glaciology, 57(206):1046-1056.
Metadata Name and Version
Metadata Name: CEOS IDN DIF Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2012-11-26 Last DIF Revision Date: 2013-05-02
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