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DOI10.1175/JCLI-D-17-0085.1
Modulation of Tropical Cyclogenesis Location and Frequency over the Indo-Western North Pacific by the Intraseasonal Indo-Western Pacific Convection Oscillation during the Boreal Extended Summer
Wang, Qiuyun1; Li, Jianping1,2,3; Li, Yanjie4; Zhang, Jingwen5; Zheng, Jiayu6
2018-02-01
发表期刊JOURNAL OF CLIMATE
ISSN0894-8755
EISSN1520-0442
出版年2018
卷号31期号:4页码:1435-1450
文章类型Article
语种英语
国家Peoples R China
英文摘要

The influence of the intraseasonal Indo-western Pacific convection oscillation (IPCO) on tropical cyclone (TC) genesis location and frequency over the Indo-western North Pacific (WNP) during the boreal extended summer (May-October) is explored. Observational analysis shows that the impacts of the intraseasonal IPCO on TCs over the Indo-WNP include an evident "phase lock of TC genesis location'' and distinct differences in TC frequency. In the WNP, in the positive intraseasonal IPCO phase, the atmosphere gains heat through the release of latent heat in cumulus convective condensation, and the anomalous cyclonic circulation weakens the western Pacific subtropical high (WPSH) and enhances TC genesis, thereby tending to produce many more TCs. Moreover, the diminished WPSH and the westward shift of the centers of anomalous cyclonic circulations lock TC genesis locations to the west WNP and lower latitudes (around 5 degrees-20 degrees N), especially in the South China Sea. The almost opposite situation occurs in a negative phase. In the north Indian Ocean, the total TC genesis frequencies in the two intraseasonal IPCO phases are approximate. However, in the positive intraseasonal IPCO phase, the environmental conditions to the north of 13 degrees N are similar to those in the WNP except without the WPSH control, whereas south of 13 degrees N the situation is reversed, leading to a northward shift of the TC genesis location (around 13 degrees-20 degrees N). The negative phase reflects an opposite situation.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000425166600008
WOS关键词MADDEN-JULIAN OSCILLATION ; CYCLONE GENESIS FREQUENCY ; EAST-INDIAN OCEAN ; OUTGOING LONGWAVE RADIATION ; INTERDECADAL VARIABILITY ; INTERANNUAL VARIABILITY ; HURRICANE ACTIVITY ; POTENTIAL INDEX ; WARM POOL ; EL-NINO
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/19783
专题气候变化
作者单位1.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing, Peoples R China;
2.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China;
3.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Peoples R China;
4.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China;
5.Chengdu Meteorol Bur, Chengdu, Sichuan, Peoples R China;
6.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
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GB/T 7714
Wang, Qiuyun,Li, Jianping,Li, Yanjie,et al. Modulation of Tropical Cyclogenesis Location and Frequency over the Indo-Western North Pacific by the Intraseasonal Indo-Western Pacific Convection Oscillation during the Boreal Extended Summer[J]. JOURNAL OF CLIMATE,2018,31(4):1435-1450.
APA Wang, Qiuyun,Li, Jianping,Li, Yanjie,Zhang, Jingwen,&Zheng, Jiayu.(2018).Modulation of Tropical Cyclogenesis Location and Frequency over the Indo-Western North Pacific by the Intraseasonal Indo-Western Pacific Convection Oscillation during the Boreal Extended Summer.JOURNAL OF CLIMATE,31(4),1435-1450.
MLA Wang, Qiuyun,et al."Modulation of Tropical Cyclogenesis Location and Frequency over the Indo-Western North Pacific by the Intraseasonal Indo-Western Pacific Convection Oscillation during the Boreal Extended Summer".JOURNAL OF CLIMATE 31.4(2018):1435-1450.
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