| DOI: | 10.1002/2014GL062446
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| 论文题名: | Climate-driven vertical acceleration of Icelandic crust measured by continuous GPS geodesy |
| 作者: | Compton K.; Bennett R.A.; Hreinsdõttir S.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8999
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| EISSN: | 1944-8730
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| 出版年: | 2015
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| 卷: | 42, 期:3 | | 起始页码: | 743
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| 结束页码: | 750
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| 语种: | 英语
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| 英文关键词: | climate change
; glacial isostatic adjustment
; GPS geodesy
; Iceland
; uplift
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| Scopus关键词: | Earth (planet)
; Geodesy
; Geodetic satellites
; Geometry
; Glacial geology
; Global positioning system
; Ice
; Unloading
; Glacial Isostatic Adjustments
; Icelandic crusts
; Icelands
; uplift
; Upward velocities
; Vertical accelerations
; Vertical positions
; Visco elastic half spaces
; Climate change
; acceleration
; climate change
; geodesy
; glacier flow
; glacier mass balance
; glacioisostasy
; GPS
; uplift
; Iceland
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| 英文摘要: | Earth's present-day response to enhanced glacial melting resulting from climate change can be measured using Global Positioning System (GPS) technology. We present data from 62 continuously operating GPS instruments in Iceland. Statistically significant upward velocity and accelerations are recorded at 27 GPS stations, predominantly located in the Central Highlands region of Iceland, where present-day thinning of the Iceland ice caps results in velocities of more than 30mm/yr and uplift accelerations of 1-2mm/yr2. We use our acceleration estimates to back calculate to a time of zero velocity, which coincides with the initiation of ice loss in Iceland from ice mass balance calculations and Arctic warming trends. We show, through a simple inversion, a direct relationship between ice mass balance measurements and vertical position and show that accelerated unloading is required to reproduce uplift observations for a simple elastic layer over viscoelastic half-space model. © 2015 The Authors. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84924933347&doi=10.1002%2f2014GL062446&partnerID=40&md5=c32ed52f04c1d1bf96b3c6c6cb1d840c
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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/8615
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Geosciences, University of Arizona, Tucson, AZ, United States
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| Recommended Citation: | |
Compton K.,Bennett R.A.,Hreinsdõttir S.. Climate-driven vertical acceleration of Icelandic crust measured by continuous GPS geodesy[J]. Geophysical Research Letters,2015-01-01,42(3).
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