DOI: 10.1002/2016GL071485
论文题名: Surface elevation change and mass balance of Icelandic ice caps derived from swath mode CryoSat-2 altimetry
作者: Foresta L. ; Gourmelen N. ; Pálsson F. ; Nienow P. ; Björnsson H. ; Shepherd A.
刊名: Geophysical Research Letters
ISSN: 0094-8324
EISSN: 1944-8055
出版年: 2016
卷: 43, 期: 23 起始页码: 12138
结束页码: 12145
语种: 英语
英文关键词: ice caps
; iceland
; mass balance
; radar altimetry
; swath processing
Scopus关键词: Sea level
; Snow
; Complex surface
; High-resolution mapping
; Ice-caps
; Icelands
; Magmatic process
; Mass balance
; Radar altimetry
; Surface elevation changes
; Ice
英文摘要: We apply swath processing to CryoSat-2 interferometric mode data acquired over the Icelandic ice caps to generate maps of rates of surface elevation change at 0.5 km postings. This high-resolution mapping reveals complex surface elevation changes in the region, related to climate, ice dynamics, and subglacial geothermal and magmatic processes. We estimate rates of volume and mass change independently for the six major Icelandic ice caps, 90% of Iceland's permanent ice cover, for five glaciological years between October 2010 and September 2015. Annual mass balance is highly variable; during the 2014/2015 glaciological year, the Vatnajökull ice cap (~70% of the glaciated area) experienced positive mass balance for the first time since 1992/1993. Our results indicate that between glaciological years 2010/2011and 2014/2015 Icelandic ice caps have lost 5.8 ± 0.7 Gt a−1 on average, ~40% less than the preceding 15 years, contributing 0.016 ± 0.002 mm a−1 to sea level rise. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85007298425&doi=10.1002%2f2016GL071485&partnerID=40&md5=5d4cf65adf9663752b1850905b611420
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9287
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: School of GeoSciences, University of Edinburgh, Edinburgh, United Kingdom
Recommended Citation:
Foresta L.,Gourmelen N.,Pálsson F.,et al. Surface elevation change and mass balance of Icelandic ice caps derived from swath mode CryoSat-2 altimetry[J]. Geophysical Research Letters,2016-01-01,43(23).