Ice Fabric Characteristics: Siple Dome, A CoreEntry ID: NSIDC-0255
Abstract: 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.
Data Set Citation
Dataset Originator/Creator: Wilen, L.
Dataset Title: Ice Fabric Characteristics: Siple Dome, A Core
Dataset Series Name: NSIDC-0255
Dataset Release Date: 2005-03-02
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Dataset DOI: doi:10.7265/N54B2Z7VOnline Resource: http://nsidc.org/data/NSIDC-0255
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
Distribution Media: FTP
Distribution Size: 1 - 50 KB
Distribution Format: ASCII Text
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.
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Creation and Review Dates
DIF Creation Date: 2005-03-02
Last DIF Revision Date: 2017-01-13