Changes in Tropical Cyclone Number in the Western North Pacific in a Warming Environment as Implied by Classical Thermodynamics
Xiaogang Zhou, Chongjian Liu, Ying Liu, Hui Xu, Xiuming Wang
DOI: 10.4236/ijg.2011.21003   PDF   HTML     4,984 Downloads   9,206 Views   Citations


Observational analyses show that the equatorial trough in the western North Pacific (WNP) is a well-known origin for tropical cyclones (TC) which have tended to weaken in intensity and decrease in number during the last several decades under global warming. A scientific problem then arises as to why higher sea surface temperatures (SSTs), one of the necessary conditions for typhoon genesis, can cause a weakened equatorial trough and a decreased TC number. In this paper, the WNP is taken as an example to illustrate a possible mechanism for the above-mentioned seemingly counterintuitive phenomena and explain the causality between the unusually heterogeneous pattern of SSTs in a warming environment and TC number in the WNP. This mechanism is based substantially on the second law of thermodynamics.

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X. Zhou, C. Liu, Y. Liu, H. Xu and X. Wang, "Changes in Tropical Cyclone Number in the Western North Pacific in a Warming Environment as Implied by Classical Thermodynamics," International Journal of Geosciences, Vol. 2 No. 1, 2011, pp. 29-35. doi: 10.4236/ijg.2011.21003.

Conflicts of Interest

The authors declare no conflicts of interest.


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