Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-018-4477-8 |
Recent decrease in genesis productivity of tropical cloud clusters over the Western North Pacific | |
Zhao, Haikun1; Chen, Shaohua2; Raga, G. B.3; Klotzbach, Philip J.4; Wu, Liguang5 | |
2019-05-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 52页码:5819-5831 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Mexico; USA |
英文摘要 | Tropical cloud clusters (TCCs) play a critical role in sustaining tropical large-scale systems and are traditionally viewed as precursors for tropical cyclone (TC) genesis. This study focuses on the decadal changes in genesis productivity (GP), e.g. the efficiency of TCCs developing into TCs, and shows a significant decrease in GP over the western North Pacific (WNP) basin since 1998, when a climate regime change occurred. The significant decrease in TC frequency and the significant increase in TCCs, especially over the eastern region of the WNP basin, have combined to result in a reduced GP since 1998. These changes are dependent on the combined changes in large-scale atmospheric-oceanic conditions over the WNP basin. A decadal change in vertical wind shear, especially over the eastern portion of the WNP basin, appears to be the most important contributor to the recent decrease in GP. Increased vertical wind shear suppresses TC genesis but enhances the frequency of TCCs. Secondary positive contributions to the recent decrease in GP are from local sea surface temperatures (SSTs) and low-level relative vorticity. These positive contributions to the recent decrease in GP are partly cancelled out by a negative contribution from enhanced mid-relative moisture. Changes in these large-scale conditions associated with the recent decrease in GP over the WNP basin since 1998 are closely related to the weakening monsoon circulation and the westward shift of the tropical upper-tropospheric trough over the WNP. This is likely related to the changes observed in tropical SST anomalies around the globe. |
英文关键词 | Tropical cloud cluster Genesis productivity Tropical cyclones Western North Pacific Pacific climate regime shift |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000465441400041 |
WOS关键词 | CYCLONE ACTIVITY ; INDIAN-OCEAN ; NONDEVELOPING DISTURBANCES ; ATLANTIC SST ; VARIABILITY ; ENSO ; INTENSITY ; IMPACT ; OSCILLATION ; FREQUENCY |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/182617 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Joint Int Res Lab Climate & Environm Change ILCEC, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Pacific Typhoon Res Ctr,Earth Syst Modeling Ctr,K, Nanjing 210044, Jiangsu, Peoples R China; 2.Nanjing Univ Informat Sci & Technol, Minist Educ, Key Lab Meteorol Disaster, Nanjing, Jiangsu, Peoples R China; 3.Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Mexico City, DF, Mexico; 4.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA; 5.Nanjing Univ Informat Sci & Technol, Pacific Typhoon Res Ctr, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Zhao, Haikun,Chen, Shaohua,Raga, G. B.,et al. Recent decrease in genesis productivity of tropical cloud clusters over the Western North Pacific[J]. CLIMATE DYNAMICS,2019,52:5819-5831. |
APA | Zhao, Haikun,Chen, Shaohua,Raga, G. B.,Klotzbach, Philip J.,&Wu, Liguang.(2019).Recent decrease in genesis productivity of tropical cloud clusters over the Western North Pacific.CLIMATE DYNAMICS,52,5819-5831. |
MLA | Zhao, Haikun,et al."Recent decrease in genesis productivity of tropical cloud clusters over the Western North Pacific".CLIMATE DYNAMICS 52(2019):5819-5831. |
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