NDLI: Environmental influences on the intensity change of tropical cyclones in the western North Pacific

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Journal of Meteorological Research : Volume 27, Issue 2, April 2013

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Journal of Meteorological Research : Volume 25

Environmental influences on the intensity change of tropical cyclones in the western North Pacific

Content Provider	Springer Nature Link
Author	Chu, Huiyun Wu, Rongsheng
Copyright Year	2013
Abstract	The atmospheric and oceanic conditions are examined during different stages of the lifecycle of western North Pacific tropical cyclones (TCs), with the intention to understand how the environment affects the intensity change of TCs in this area. It is found that the intensification usually occurs when the underlying sea surface temperature (SST) is higher than 26°C. TCs usually experience a rapid intensification when the SST is higher than 27.5°C while lower than 29.5°C. However, TCs decay or only maintain its intensity when the SST is lower than 26°C. The intensifying TCs usually experience a low-to-moderate vertical wind shear (2–10 m s$^{−1}$). The larger the vertical wind shear, the slower the TCs strengthen. In addition, the convective available potential energy (CAPE) is much smaller in the developing stage than in the formation stage of TCs. For the rapidly intensifying TCs, the changes of SST, CAPE, and vertical wind shear are usually small, indicating that the rapid intensification of TCs occurs when the evolution of the environment is relatively slow.
Starting Page	335
Ending Page	343
Page Count	9
File Format	PDF
ISSN	08940525
Journal	Journal of Meteorological Research
Volume Number	27
Issue Number	3
e-ISSN	21914788
Language	English
Publisher	Springer-Verlag
Publisher Date	2013-06-17
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	tropical cyclone sea surface temperature convective available potential energy vertical wind shear Atmospheric Sciences Meteorology Geophysics and Environmental Physics Atmospheric Protection/Air Quality Control/Air Pollution
Content Type	Text
Resource Type	Article
Subject	Ocean Engineering Atmospheric Science

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