The preliminary analysis of the lightning characteristics and the relationship between lightning and intensity of tropical cyclone in northwest Pacific

LEI Xiao-tu; ZHANG Yi-jun; MA Ming

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LEI Xiao-tu, ZHANG Yi-jun, MA Ming. The preliminary analysis of the lightning characteristics and the relationship between lightning and intensity of tropical cyclone in northwest Pacific[J]. Haiyang Xuebao, 2009, 31(4): 29-38.

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The preliminary analysis of the lightning characteristics and the relationship between lightning and intensity of tropical cyclone in northwest Pacific

1.
Shanghai Typhoon Institute/CMA, Shanghai 200030;State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081
2.
State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081

Received Date: 2008-07-12
Rev Recd Date: 2009-01-30

Abstract

Abstract

Based on the lightning data explored by the lightning imaging sensor carrying on TRMM during 1998-2005,combined with the characteristics of tropical cyclone(TC),a method to identify the TC's lightning has established.On this basis,this study separated and obtained the lightning information of TC in the northwest Pacific during 1998-2005,and the characteristics of TC's lightning were analyzed.The results show that(1) in Northwest Pacific,the lightning phenomenon are widespread in the TC's out side rain bands(away from TC center about 130-610 km),inside rain bands(away from TC center about 60-100 km) and near the eye wall(away from TC center about 30-50 km).The TC's lightning can occurred in each month,but more frequent in July to August.(2) Two regions are most prone to the TC's lightning occurred,one is the Taiwan Island-the Taiwan Strait-the coastal areas of Fijian Province,and other is the coastal area of the Zhujiang River Delta.And the vastsea area south-east erly of Japanese Island,while less TC's lightning occurred.(3) In addition,TC's lightning and its intensity have a certain relationship,and based on the relationship between lightning and intensity,the information of lightning occurring in different regions of TC can using to estimate the TC's intensity and its change.The error is closed with the current operational.
- tropical cyclone,
- lightning,
- identify,
- intensity

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References(14)

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