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Ice Fabric Characteristics: Siple Dome, A Core

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Entry ID

NSIDC-0255

Summary

This data set contains measurements of the orientation and deformation of the crystal c-axes (fabric) of ice core samples collected from the Siple Dome Ice Core A, Antarctica (81°S, 148°W) between 22.764 m and 992.385 m in depth. The instrument used for the measurements consists of a fiber-optic white light source, one fixed black-and-white video camera, and four rotation stages. The data are in ASCII tab-delimited text format and are available via FTP.

Geographic Coverage

 

Spatial Coordinates:
N: 81°     S: 81°     E: 148°     W: 148°     Min Depth: 22.764 meters     Max Depth: 992.385 meters

Data Set Citation

Dataset Creator: Larry Wilen
Dataset Title: Ice Fabric Characteristics: Siple Dome, A Core
Dataset Release Date: 2005-03-02
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0255.html
Dataset DOI: http://dx.doi.org/10.7265/N54B2Z7V

Location Keywords

  • CONTINENT ANTARCTICA

Science Keywords

  • Cryosphere Snow/Ice Ice Fabric
  • Paleoclimate Ice Core Records
  • Terrestrial Hydrosphere Snow/Ice Ice Fabric

Ancillary Keywords

  • AGDC
  • Ice Core
  • Ice Core Data
  • ice fabric
  • NSIDC
  • NSIDC-0255
  • Siple Dome

ISO Topic Category (View Definitions)

  • Geoscientific Information

Platform

  • GROUND-BASED OBSERVATIONS

Project

  • WAISCORES West Antarctic Ice Sheet Cores

Quality

Many of the vertical sections were not mounted vertically in the instrument for various technical reasons; therefore, the pattern of c-axes is actually rotated from the vertical. The mount orientation of the samples is given in a separate file titled 'sample orientation.doc.' This file contains a list of all the samples specified by depth, followed by the tipping angle.

To rotate the c-axes to 'vertical,' the following procedure must be used: Convert the two Euler angles to unit vectors, and rotate the vectors by the tipping angle about the z-axis.

To rotate the c-axes to 'horizontal,' rotate the vectors about the x-axis by 90°.

Most of the data were taken from the Siple Dome A core. The core hole for each thin section is listed in the 'sample orientation.doc' file.

Data Set Progress

in work

Originating Center

AGDC

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: 1 - 50 KB
Distribution Format: ASCII Text (.txt)

Personnel

Larry Wilen
Role: INVESTIGATOR
Contact Address:

  • Dept. of Physics and Astronomy

City: Athens
Province or State: OH
Postal Code: 45701
Country: USA

Related URL

VIEW PROJECT HOME PAGE
WAISCORES : Deep Ice Coring in West Antarctica

Reference

DiPrinzio, C.L., , L.A. Wilen, R.B. Alley, J.J. Fitzpatrick and M.K. Spencer. 'Fabric and Texture at Siple Dome,' to be submitted to Journal of Glaciology.

Gow, A.J. and D.A. Meese. 2002. WAISCORES: Deep Ice Coring in West Antarctica, Major Findings, The Physical and Structural Properties of the Siple Dome Ice Cores. National Snow and Ice Data Center/Antarctic Glaciological Data Center. http://nsidc.org/data/waiscores/findings/meese_gow_findings.html

Gow, A.J. and H. Engelhardt. 2000. Preliminary analysis of ice cores from Siple Dome, West Antarctica, in Physics of Ice Core Records, Ed. T. Hondoh, Hokkaido University Press, Sapporo, pp. 63-82.

Gow, A.J. and D.A. Meese. 2002. 'WAISCORES: Deep Ice Coring in West Antarctica, Major Findings, The Physical and Structural Properties of the Siple Dome Ice Cores'. National Snow and Ice Data Center/Antarctic Glaciological Data Center http://nsidc.org/data/waiscores/findings/meese_gow_findings.html

Hansen D. and L.A. Wilen. 2002. 'Performance and applications of an automated ice fabric analyzer', J. Glaciol., 48, 159-170.

Wilen, L.A., C.L. DiPrinzio, R.B. Alley, and N. Azuma. 2003. 'Development, Principles, and Applications of Automated Ice Fabric Analyzers', Microsp. Res. Tech., 62, 2-18.

Wilen, L.A. 2000. 'A new technique for ice fabric analysis', J. Glaciol., 46, 129-139.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2005-03-02
Last DIF Revision Date: 2014-03-14

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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