DOI: 10.1002/2014GL060881
论文题名: The role of atmospheric rivers in anomalous snow accumulation in East Antarctica
作者: Gorodetskaya I.V. ; Tsukernik M. ; Claes K. ; Ralph M.F. ; Neff W.D. ; Van Lipzig N.P.M.
刊名: Geophysical Research Letters
ISSN: 0094-9813
EISSN: 1944-9544
出版年: 2014
卷: 41, 期: 17 起始页码: 6199
结束页码: 6206
语种: 英语
Scopus关键词: Glacial geology
; Snow
; Antarctic coasts
; Antarctic ice sheets
; East antarctica
; European centre for medium-range weather forecasts
; Integrated water vapors
; Moisture transport
; Snow accumulation
; Subtropical latitudes
; Weather forecasting
; escarpment
; latitude
; measurement method
; snow accumulation
; water vapor
; weather forecasting
; Antarctica
; East Antarctica
; Princess Elizabeth Land
英文摘要: Recent, heavy snow accumulation events over Dronning Maud Land (DML), East Antarctica, contributed significantly to the Antarctic ice sheet surface mass balance (SMB). Here we combine in situ accumulation measurements and radar-derived snowfall rates from Princess Elisabeth station (PE), located in the DML escarpment zone, along with the European Centre for Medium-range Weather Forecasts Interim reanalysis to investigate moisture transport patterns responsible for these events. In particular, two high-accumulation events in May 2009 and February 2011 showed an atmospheric river (AR) signature with enhanced integrated water vapor (IWV), concentrated in narrow long bands stretching from subtropical latitudes to the East Antarctic coast. Adapting IWV-based AR threshold criteria for Antarctica (by accounting for the much colder and drier environment), we find that it was four and five ARs reaching the coastal DML that contributed 74-80% of the outstanding SMB during 2009 and 2011 at PE. Therefore, accounting for ARs is crucial for understanding East Antarctic SMB. © 2014. American Geophysical Union. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84907930173&doi=10.1002%2f2014GL060881&partnerID=40&md5=d6af177954f3154da3c1c8f1c7d3d4a5
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7077
Appears in Collections: 气候减缓与适应
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作者单位: Department of Earth and Environmental Sciences, KU Leuven - University of Leuven, Leuven, Belgium
Recommended Citation:
Gorodetskaya I.V.,Tsukernik M.,Claes K.,et al. The role of atmospheric rivers in anomalous snow accumulation in East Antarctica[J]. Geophysical Research Letters,2014-01-01,41(17).