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Yu, Fan; Zhang, Tao; Li, Pei; Li, Xiangjun. |
Using typhoon data over the Northwestern Pacific (NWP) in 60 years (1950-2009), the interdecadal variations of typhoon frequency, track and intensity are statistically analyzed. The results showed that the frequency of typhoon over the NWP was high in 1960s and low in 1970s. From the late 1990s, the frequency is low again. The track of typhoon was mainly shifting, and the average track was at the southern NWP in 1960s and 1970s, but in recent 10 years, the track was at the northern NWP. The intensity of typhoon was strong in 1950s and 1960s, but becomes weak in recent 25 years. In high frequency periods of typhoon, the subtropical high of NWP was weak and its position appears easternly. The distribution of Sea Surface Temperature (SST) shows... |
Tipo: Journal Contribution |
Palavras-chave: Typhoons; Frequency; Tracking. |
Ano: 2012 |
URL: http://hdl.handle.net/1834/5843 |
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Zhang,Jianhai; Chen, Hongmei; Zhu, Xiaoming. |
The landfall process of typhoon Haitang which affected East China seriously was simulated by using the MM5 model and the track, intensity, precipitation and structure of typhoon were successfully reproduced. Then through the sensitive test, the effects of terrain were analyzed.Results show that the irregular track during the period of typhoon passing through Taiwan and later landfalling at Fujian was in relation to the occurring and developing of orthographic impressed depression. The amount of rainfall was enhanced more than one time and the strength of typhoon was weakened 4 to 5 hPa. It is found that the effect of terrain on the structure of typhoon is limited at low level and is backward in space compared with the one at high level. In addition, the... |
Tipo: Journal Contribution |
Palavras-chave: Typhoons. |
Ano: 2007 |
URL: http://hdl.handle.net/1834/5833 |
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