Numerical simulation on how the inner core and outer size of tropical cyclones influence the intensity

Wu Lianyao; Lei Xiaotu; Tang Jie

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Wu Lianyao, Lei Xiaotu, Tang Jie. Numerical simulation on how the inner core and outer size of tropical cyclones influence the intensity[J]. Haiyang Xuebao, 2015, 37(9): 29-38.

Citation:

Wu Lianyao, Lei Xiaotu, Tang Jie. Numerical simulation on how the inner core and outer size of tropical cyclones influence the intensity[J]. Haiyang Xuebao, 2015, 37(9): 29-38.

Wu Lianyao, Lei Xiaotu, Tang Jie. Numerical simulation on how the inner core and outer size of tropical cyclones influence the intensity[J]. Haiyang Xuebao, 2015, 37(9): 29-38.

Citation:

Wu Lianyao, Lei Xiaotu, Tang Jie. Numerical simulation on how the inner core and outer size of tropical cyclones influence the intensity[J]. Haiyang Xuebao, 2015, 37(9): 29-38.

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Numerical simulation on how the inner core and outer size of tropical cyclones influence the intensity

1.
Zhejiang Meteorological Observatory, Hangzhou 310017, China
2.
Shanghai Typhoon Institute Of China Meteorological Administration, Shanghai 200030, China

Received Date: 2014-08-20
Rev Recd Date: 2015-06-05

Abstract

Abstract

Via WRF numerical simulation experiments,this paper discusses the relationship between tropical cyclone(TC) size and intensity,and diagnose the possible mechanism of how TC inner core and outer size influence TC intensity. Results show that: (1) while TC has large inner core,the balance of angular momentum explains that why changing of inner core will course TC intensifying or weakening. (2) While TC has small inner core,the reason why zoom out(zoom in)of inner core leads to TC weakening (intensifying) might be the damage of secondary circulation. (3) the changing of humidity supply and convergence area in low level may be the mechanism for that outer size increment(decrease) helps TC intensifying(weakening).
- tropical cyclone,
- size,
- intensity,
- numerical simulation

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References(12)

References

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