globalchange  > 影响、适应和脆弱性
DOI: 10.5194/tc-11-117-2017
Scopus记录号: 2-s2.0-85010411574
论文题名:
Semi-brittle rheology and ice dynamics in DynEarthSol3D
作者: Logan L; C; , Lavier L; L; , Choi E; , Tan E; , Catania G; A
刊名: Cryosphere
ISSN: 19940416
出版年: 2017
卷: 11, 期:1
起始页码: 117
结束页码: 132
语种: 英语
英文关键词: brittle deformation ; constitutive equation ; crevasse ; finite element method ; floating ice ; flow pattern ; glacier dynamics ; ice mechanics ; ice sheet ; numerical model ; rheology
英文摘要: We present a semi-brittle rheology and explore its potential for simulating glacier and ice sheet deformation using a numerical model, DynEarthSol3D (DES), in simple, idealized experiments. DES is a finite-element solver for the dynamic and quasi-static simulation of continuous media. The experiments within demonstrate the potential for DES to simulate ice failure and deformation in dynamic regions of glaciers, especially at quickly changing boundaries like glacier termini in contact with the ocean. We explore the effect that different rheological assumptions have on the pattern of flow and failure. We find that the use of a semi-brittle constitutive law is a sufficient material condition to form the characteristic pattern of basal crevasse-aided pinch-and-swell geometry, which is observed globally in floating portions of ice and can often aid in eroding the ice sheet margins in direct contact with oceans. © Author(s) 2017.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75620
Appears in Collections:影响、适应和脆弱性
气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Institute for Computational and Engineering Science, University of Texas, Austin, United States; Department of Geological Science, University of Texas, Austin, United States; Institute for Geophysics, University of Texas, Austin, United States; Center for Earthquake Research and Information, University of Memphis, Memphis, United States; Institute of Earth Sciences, Academia Sinica, No. 128, Section 2, Taipei, Taiwan

Recommended Citation:
Logan L,C,, Lavier L,et al. Semi-brittle rheology and ice dynamics in DynEarthSol3D[J]. Cryosphere,2017-01-01,11(1)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Logan L]'s Articles
[C]'s Articles
[, Lavier L]'s Articles
百度学术
Similar articles in Baidu Scholar
[Logan L]'s Articles
[C]'s Articles
[, Lavier L]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Logan L]‘s Articles
[C]‘s Articles
[, Lavier L]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.