DOI: 10.1002/2014GL061782
论文题名: Low melt rates with seasonal variability at the base of Fimbul Ice Shelf, East Antarctica, revealed by in situ interferometric radar measurements
作者: Langley K. ; Kohler J. ; Sinisalo A. ; Øyan M.J. ; Hamran S.E. ; Hattermann T. ; Matsuoka K. ; Nøst O.A. ; Isaksson E.
刊名: Geophysical Research Letters
ISSN: 0094-9577
EISSN: 1944-9308
出版年: 2014
卷: 41, 期: 22 起始页码: 8138
结束页码: 8146
语种: 英语
英文关键词: basal melting
; ice shelves
; interferometric radar
Scopus关键词: Catchments
; Interferometry
; Radar
; Radar measurement
; Basal melting
; Continental shelves
; Current estimates
; Ground-based interferometric radars
; Ice shelves
; Interferometric radars
; Satellite observations
; Seasonal variability
; Ice
; catchment
; continental shelf
; glacial environment
; ice sheet
; ice shelf
; measurement method
; melting
; radar
; seasonal variation
; shelf break
; stabilization
; Antarctica
; East Antarctica
; Fimbul Ice Shelf
英文摘要: Basal melt is a major cause of ice shelf thinning affecting the stability of the ice shelf and reducing its buttressing effect on the inland ice. The Fimbul ice shelf (FIS) in Dronning Maud Land (DML), East Antarctica, is fed by the fast-flowing Jutulstraumen glacier, responsible for 10% of ice discharge from the DML sector of the ice sheet. Current estimates of the basal melt rates of the FIS come from regional ocean models, autosub measurements, and satellite observations, which vary considerably. This discrepancy hampers evaluation of the stability of the Jutulstraumen catchment. Here, we present estimates of basal melt rates of the FIS using ground-based interferometric radar. We find a low average basal melt rate on the order of 1 m/yr, with the highest rates located at the ice shelf front, which extends beyond the continental shelf break. Furthermore, our results provide evidence for a significant seasonal variability. studies © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923374592&doi=10.1002%2f2014GL061782&partnerID=40&md5=9c020bf0a807f72db773b26346c31cee
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6841
Appears in Collections: 气候减缓与适应
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作者单位: Department of Geosciences, University of Oslo, Oslo, Norway
Recommended Citation:
Langley K.,Kohler J.,Sinisalo A.,et al. Low melt rates with seasonal variability at the base of Fimbul Ice Shelf, East Antarctica, revealed by in situ interferometric radar measurements[J]. Geophysical Research Letters,2014-01-01,41(22).