| DOI: | 10.1016/j.gloplacha.2014.05.002
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| 论文题名: | Small-scale modeling of ice flow perturbations induced by sudden ice shelf breakup |
| 作者: | Corti G.; Zeoli A.; Iandelli I.
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| ISSN: | 0921-8495
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| 出版年: | 2014
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| 卷: | 119 | | 起始页码: | 51
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| 结束页码: | 55
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| 语种: | 英语
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| 英文关键词: | Analogue modeling
; Buttressing effect
; Flow perturbation
; Ice flow
; Ice shelf breakup
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| Scopus关键词: | Glaciers
; Analogue modeling
; Buttressing effect
; Flow perturbations
; Ice flow
; Ice shelves
; Ice
; glacial environment
; ice flow
; ice sheet
; ice shelf
; numerical model
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| 英文摘要: | The sudden breakup of ice shelves is expected to result in significant acceleration of inland glaciers, a process related to the removal of the buttressing effect exerted by the ice shelf on the tributary glaciers. In this paper, this process is analyzed by means of scaled analogue experiments reproducing the flow of a valley glacier draining an ice sheet grounded above sea level into an ice shelf, and analyzing the dynamic perturbations resulting from ice shelf disintegration and removal of buttressing effect. Models show a significant increase in glacier velocity close to its outlet following ice shelf breakup, a transient effect that does not significantly propagate upstream towards the ice sheet and rapidly decays with time. Basal lubrication and variations in ice thickness do not significantly influence the process that thus leaves the ice sheet almost unaffected by flow perturbations. © 2014 Elsevier B.V. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84902331615&doi=10.1016%2fj.gloplacha.2014.05.002&partnerID=40&md5=032d77c04128dff79bf50d07f446bafb
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/11401
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| Appears in Collections: | 全球变化的国际研究计划
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作者单位: | Consiglio Nazionale delle Ricerche, Istituto di Geoscienze e Georisorse, Unità Operativa di Firenze, via G. La Pira, 4, 50121 Firenze, Italy
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| Recommended Citation: | |
Corti G.,Zeoli A.,Iandelli I.. Small-scale modeling of ice flow perturbations induced by sudden ice shelf breakup[J],2014-01-01,119.
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