DOI: 10.1002/2016GL070760
论文题名: The Circumglobal North American wave pattern and its relation to cold events in eastern North America
作者: Harnik N. ; Messori G. ; Caballero R. ; Feldstein S.B.
刊名: Geophysical Research Letters
ISSN: 0094-8506
EISSN: 1944-8237
出版年: 2016
卷: 43, 期: 20 起始页码: 11015
结束页码: 11023
语种: 英语
英文关键词: Circumglobal Teleconnection Pattern
; North American extreme cold events
; Rossby waves
Scopus关键词: Atmospheric temperature
; Wave packets
; Circumglobal teleconnection patterns
; Cold temperatures
; Eastern north america
; Meridional winds
; North American
; Rossby wave
; Surface temperature anomalies
; Wave patterns
; Mechanical waves
英文摘要: Extreme large-scale North American cold events are associated with strong undulations in the tropospheric jet stream which bring cold polar air southward over the continent. Here we propose that these jet undulations are associated with the North American part of the Circumglobal Teleconnection Pattern—a pair of zonally oriented waves of zonal wave number 5 which are in zonal quadrature with each other. While the Pacific/North American pattern is associated with the first circumglobal wave pattern, North American extreme cold events are associated with the second pattern. The 300 hPa meridional wind and surface temperature anomalies associated with the Circumglobal North American wave packet are similar to those associated with the strongest eastern U.S. cold events. Both types of events are associated with a wave packet propagating all the way from Asia across the Pacific and across North America, with cold temperature anomalies spreading southeastward from Canada over the continent. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84991823643&doi=10.1002%2f2016GL070760&partnerID=40&md5=454c799eaddec67809a0796c210f3da8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9469
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: Geosciences Department, Tel Aviv University, Tel Aviv, Israel
Recommended Citation:
Harnik N.,Messori G.,Caballero R.,et al. The Circumglobal North American wave pattern and its relation to cold events in eastern North America[J]. Geophysical Research Letters,2016-01-01,43(20).