DOI: 10.1175/JCLI-D-11-00449.1
Scopus记录号: 2-s2.0-84859351358
论文题名: The role of barents sea ice in the wintertime cyclone track and emergence of a warm-Arctic cold-Siberian anomaly
作者: Inoue J. ; Hori M.E. ; Takaya K.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 7 起始页码: 2561
结束页码: 2569
语种: 英语
Scopus关键词: Anticyclonic anomalies
; Arctic
; Atmospheric circulation
; Atmospheric response
; Barents sea
; Baroclinicity
; Composite analysis
; Cyclogenesis
; Cyclone activity
; Cyclone tracks
; East Asia
; Eastern Siberia
; Nordic seas
; Sea surface temperature (SST)
; Warm advection
; Climate change
; Sea ice
; Storms
; anticyclone
; atmospheric circulation
; baroclinic motion
; climate change
; cyclogenesis
; sea ice
; synoptic meteorology
; winter
; Arctic Ocean
; Barents Sea
; Norwegian Sea
英文摘要: Sea ice variability over the Barents Sea with its resultant atmospheric response has been considered one of the triggers of unexpected downstream climate change. For example, East Asia has experienced several major cold events while the underlying temperature over the Arctic has risen steadily. To understand the influence of sea ice in the Barents Sea on atmospheric circulation during winter from a synoptic perspective, this study evaluated the downstream response in cyclone activities with respect to the underlying sea ice variability. The composite analysis, including all cyclone events over the Nordic seas, revealed that an anticyclonic anomaly prevailed along the Siberian coast during light ice years over the Barents Sea. This likely caused anomalous warm advection over the Barents Sea and cold advection over eastern Siberia. The difference in cyclone paths between heavy and light ice years was expressed as a warm-Arctic cold-Siberian (WACS) anomaly. The lower baroclinicity over the Barents Sea during the light ice years, which resulted from a weak gradient in sea surface temperature, prevented cyclones from traveling eastward. This could lead to fewer cyclones and hence to an anticyclonic anomaly over the Siberian coast. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52473
Appears in Collections: 气候变化事实与影响
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作者单位: Research Institute for Global Change, JAMSTEC, Yokosuka, Japan
Recommended Citation:
Inoue J.,Hori M.E.,Takaya K.. The role of barents sea ice in the wintertime cyclone track and emergence of a warm-Arctic cold-Siberian anomaly[J]. Journal of Climate,2012-01-01,25(7)