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The Multiscale Structure of Antarctica Part I : Inland Ice

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/45430

Title: The Multiscale Structure of Antarctica Part I : Inland Ice
Authors: Faria, Sérgio H. Browse this author
Kipfstuhl, Sepp Browse this author
Azuma, Nobuhiko Browse this author
Freitag, Johannes Browse this author
Weikusat, Ilka Browse this author
Murshed, M. Mangir Browse this author
Kuhs, Werner F. Browse this author
Keywords: Ice
firn
multiscale modeling
microstructure
recrystallization
stratigraphy
subglacial environment
Issue Date: Dec-2009
Publisher: Institute of Low Temperature Science, Hokkaido University
Citation: Physics of Ice Core Records II : Papers collected after the 2nd International Workshop on Physics of Ice Core Records, held in Sapporo, Japan, 2-6 February 2007. Edited by Takeo Hondoh
Journal Title: 低温科学
Journal Title(alt): Low Temperature Science
Volume: 68
Issue: Supplement
Start Page: 39
End Page: 59
Abstract: The dynamics of polar ice sheets is strongly influenced by a complex coupling of intrinsic structures. Some of these structures are extremely small, like dislocation walls and micro-inclusions; others occur in a wide range of scales, like stratigraphic features; and there are also those collossal structures as large as megadunes and subglacial lakes. Their significance results from their interactions with the ice-sheet flow and the environment through an intricate Structure-Form-Environment Interplay (SFEI). Glaciologists are not unaware of the SFEI issue, as particular details of the problem are well documented in the literature. Nevertheless, many aspects of the SFEI remain unclear and a comprehensive perspective of the problem is missing. Here we present some selected results of a joint investigation of these structures via fieldwork, theoretical modeling, and experiments. The basic strategy is to conceive the Antarctic ice sheet as a heterogeneous system of structured media that interact in a hierarchical fashion via the SFEI. Special emphasis is given to snow and firn structures, interactions between microstructure, stratigraphy and impurities, and the interplay between subglacial structures and the overlaying ice.
Description: I. Microphysical properties, deformation, texture and grain growth
Type: bulletin (article)
URI: http://hdl.handle.net/2115/45430
Appears in Collections:低温科学 = Low Temperature Science > vol. 68, Supplement Issue

Submitter: 低温科学研究所図書室

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