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Siple Dome A (SDMA) Grain Orientation 640 - 790 Meters

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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°    

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)

ISO Topic Category (View Definitions)

  • Climatology/Meteorology/Atmosphere

Platform

  • LABORATORY

Instrument

  • SCANNING ELECTRON MICROSCOPES

Project

  • NSF/OPP Division of Polar Programs, Antarctic Research, Glaciology

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

Antarctic Glaciological Data Center
Data Center URL: http://nsidc.org/agdc/

Data Center Personnel

Name: AGDC User Services
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
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

Metadata Views

DIF Text-Only

Directory Interchange Format (DIF) in plain text

DIF XML

Directory Interchange Format (DIF) in Extensible Markup Language (XML)

FGDC HTML

U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)

ISO HTML

International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata

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