DOI: 10.1175/JCLI-D-11-00555.1
Scopus记录号: 2-s2.0-84867664989
论文题名: Is Pacific storm-track activity correlated with the strength of upstream wave seeding?
作者: Chang E.K.M. ; Guo Y.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 17 起始页码: 5768
结束页码: 5776
语种: 英语
Scopus关键词: Feature-tracking
; Interannual variability
; Interannual variation
; North Pacific
; Pacific ocean
; Seasonal cycle
; Storm track
; Upstream seeding
; Upstream waves
; Climate control
; Climatology
; Mathematical models
; Statistics
; Storms
; annual variation
; seasonality
; statistical analysis
; storm track
; Asia
; Pacific Ocean
英文摘要: In this paper, the relationship between upstream seeding over north Asia and downstream storm-track activity over the North Pacific in midwinter and spring/fall has been analyzed using 45 years of variance and feature-tracking statistics. It is shown that for each season, interannual variations in upstream seeding and downstream storm-track activity are largely uncorrelated. Moreover, during midwinter months in which the upstream seeding from north Asia is about as strong as that during a typical spring/fall month, the downstream storm track in central Pacific is still significantly weaker during midwinter than that during spring/fall. In addition, during cool seasons in which the midwinter suppression is more pronounced in the upstream seeding region, the suppression is not significantly enhanced in the downstream Pacific storm track. A recent study suggested that reduced upstream seeding from north Asia is the main "source"of the midwinter suppression of the Pacific storm track. Results presented in this study suggest that it is unlikely that the weakness in upstream seeding is the primary cause of the midwinter suppression. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52276
Appears in Collections: 气候变化事实与影响
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作者单位: School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY, United States; Joint Institute for Regional Earth System Science and Engineering, University of California, Los Angeles, Los Angeles, CA, United States
Recommended Citation:
Chang E.K.M.,Guo Y.. Is Pacific storm-track activity correlated with the strength of upstream wave seeding?[J]. Journal of Climate,2012-01-01,25(17)