DOI: 10.1175/JCLI-D-14-00642.1
Scopus记录号: 2-s2.0-84942926258
论文题名: Winter extreme flux events in the Kuroshio and Gulf Stream extension regions and relationship with modes of north pacific and Atlantic variability
作者: Ma X. ; Chang P. ; Saravanan R. ; Wu D. ; Lin X. ; Wu L. ; Wan X.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 12 起始页码: 4950
结束页码: 4970
语种: 英语
Scopus关键词: Atmospheric temperature
; Oceanography
; Storms
; Surface waters
; Eastern north pacific
; Extratropical cyclones
; Gulf stream extensions
; Gulf Stream region
; Kuroshio Extension
; North American
; North-Western Atlantic
; Sea surface temperature anomalies
; Ocean currents
; cyclone
; extratropical environment
; extreme event
; sea surface temperature
; synoptic meteorology
; temperature anomaly
; winter
; Atlantic Ocean
; Atlantic Ocean (North)
; Gulf Stream
; Kuroshio Extension
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: Boreal winter (November-March) extreme flux events in the Kuroshio Extension region (KER) of the northwestern Pacific and the Gulf Stream region (GSR) of the northwestern Atlantic are analyzed and compared, based on NCEP Climate Forecast System Reanalysis (CFSR), NCEP-NCAR reanalysis, and NOAA Twentieth Century Reanalysis data, as well as the observationally derived OAFlux dataset. These extreme flux events, most of which last less than 3 days, are characterized by cold air outbreaks (CAOs) with an anomalous northerly wind that brings cold and dry air from the Eurasian and North American continents to the KER and GSR, respectively. A close relationship between the extreme flux events over KER (GSR) and the Aleutian low pattern (ALP) [east Atlantic pattern (EAP)] is found with more frequent occurrence of the extreme flux events during a positive ALP (EAP) phase and vice versa. A further lag-composite analysis suggests that the ALP (EAP) is associated with accumulated effects of the synoptic winter storms accompanied by the extreme flux events and shows that the event-day storms tend to have a preferred southeastward propagation path over the North Pacific (Atlantic), potentially contributing to the southward shift of the storm track over the eastern North Pacific (Atlantic) basin during the ALP (EAP) positive phase. Finally, lagregression analyses indicate a potential positive influence of sea surface temperature (SST) anomalies along the KER (GSR) on the development of the extreme flux events in the North Pacific (Atlantic). © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50808
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Oceanography, Texas A and M University, College Station, TX, United States; Ocean University of China, Qingdao Collaborative Innovation Center of Marine Science and Technology, Qingdao, China; Department of Atmospheric Sciences, Texas A and M University, College Station, TX, United States
Recommended Citation:
Ma X.,Chang P.,Saravanan R.,et al. Winter extreme flux events in the Kuroshio and Gulf Stream extension regions and relationship with modes of north pacific and Atlantic variability[J]. Journal of Climate,2015-01-01,28(12)