globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-016-3181-9
Scopus记录号: 2-s2.0-84970951893
论文题名:
Unusual growth in intense typhoon occurrences over the Philippine Sea in September after the mid-2000s
作者: He H.; Yang J.; Wu L.; Gong D.; Wang B.; Gao M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 48, 期:2017-05-06
起始页码: 1893
结束页码: 1910
语种: 英语
英文关键词: Intense typhoon ; The Philippine Sea ; Tropical Indo-Pacific sea surface temperature ; Unusual growth
英文摘要: During the global warming hiatus period (1998–present), a pronounced increase in the number of intense typhoon occurrences was identified over the Philippine Sea (PS: 5°–25°N, 125°–140°E) in September after the mid-2000s. Comparing two periods before and after the mid-2000s indicates that intense typhoons rarely occurred over the PS in September before the mid-2000s, with a frequency of fewer than 0.4 per year, but reached up to nearly 1.5 per year after the mid-2000s. The abrupt increase in intense typhoon occurrences over the PS was primarily attributed to increased tropical cyclone (TC) genesis and favorable large-scale conditions for TC intensification. The increase in TC genesis number over the PS was caused by contributory dynamical conditions, including positive low-level relative vorticity anomalies and anomalous ascents, which corresponded to a southwestward shift and strengthening of the monsoon trough. In addition, among the favorable large-scale conditions, the increased relative humidity that resulted from intensified moisture flux convergence exerted essential effect on the TC intensification. These changes in atmospheric environmental conditions favoring intense typhoon occurrences over the PS were primarily associated with the change in the tropical Indo-Pacific sea surface temperature (SST) around the mid-2000s. Besides that, the positive feedback TCs exerted on the circulation was also conducive to the unusual growth in intense typhoon occurrences over the PS. And note that the role of SST anomalies in the air–sea interaction is the key to interpret why the unique phenomenon only occurred in September. © 2016, Springer-Verlag Berlin Heidelberg.
资助项目: NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53316
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作者单位: State Key Laboratory of Earth Surface Processes and Resource Ecology (ESPRE), Beijing Normal University, Beijing, China; Academy of Disaster Reduction and Emergency Management, Ministry of Civil Affairs and Ministry of Education, Beijing Normal University, Beijing, China; Key Laboratory of Meteorological Disaster of Ministry of Education, and Pacific Typhoon Research Center, Nanjing University of Information Science and Technology, Nanjing, China; Department of Atmospheric Sciences, and International Pacific Research Center, University of Hawaii at Manoa, Honolulu, HI, United States; Earth System Modeling Center, Nanjing University of Information Science and Technology, Nanjing, China

Recommended Citation:
He H.,Yang J.,Wu L.,et al. Unusual growth in intense typhoon occurrences over the Philippine Sea in September after the mid-2000s[J]. Climate Dynamics,2017-01-01,48(2017-05-06)
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