DOI: 10.1002/grl.50105
论文题名: Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors
作者: Dacre H.F. ; Gray S.L.
刊名: Geophysical Research Letters
ISSN: 0094-9030
EISSN: 1944-8761
出版年: 2013
卷: 40, 期: 10 起始页码: 2322
结束页码: 2327
语种: 英语
英文关键词: cyclone tracking
; latent heat release
; potential vorticity
; warm conveyor belt
Scopus关键词: Atlantic cyclones
; Cyclone development
; Cyclone tracking
; Extratropical cyclones
; Latent heat release
; Potential vorticity
; Upper-level trough
; Warm conveyor belts
; Belt conveyors
; Latent heat
; Regression analysis
; Vorticity
; Storms
; belt
; climatology
; cyclone
; extratropical environment
; heat balance
; magnitude
; potential vorticity
; regression analysis
; trough
; Atlantic Ocean
英文摘要: We introduce a novel technique in which linear regression analysis is applied to clusters of tracked cyclones to statistically assess the factors controlling cyclone development. We illustrate this technique by evaluating the differences between cyclones forming in the west and east North Atlantic (herein termed west and east Atlantic cyclones). Enhanced cyclone intensity 2 days after genesis is found to be associated with deeper upper-level troughs upstream of the cyclone center at the genesis time in both west and east Atlantic cyclones. However, whilst west Atlantic cyclones are also enhanced by the presence of strong fronts, east Atlantic cyclones are not. Instead, east Atlantic cyclones exhibit an enhancement when diabatically generated midlevel potential vorticity is present (with the enhancement being of approximately equal magnitude to that associated with the potential vorticity in the upper-level trough). This is consistent with the paradigm of latent heat release in the warm conveyor belt region playing an important role in the development of east Atlantic cyclones. ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879948606&doi=10.1002%2fgrl.50105&partnerID=40&md5=9dc1adc49c8201b1915c6afb227b686d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6294
Appears in Collections: 气候减缓与适应
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作者单位: Department of Meteorology, University of Reading, Earley Gate, Reading, RG6 6BB, United Kingdom
Recommended Citation:
Dacre H.F.,Gray S.L.. Quantifying the climatological relationship between extratropical cyclone intensity and atmospheric precursors[J]. Geophysical Research Letters,2013-01-01,40(10).