气候变化领域集成服务门户(CCPortal): Basin dependence of the MJO modulating tropical cyclone genesis

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DOI	10.1007/s00382-018-4502-y
	Basin dependence of the MJO modulating tropical cyclone genesis
	Zhao C.; Li T.
发表日期	2019
ISSN	0930-7575
起始页码	6081
结束页码	6096
卷号	52 期号:2020-09-10
英文摘要	The modulation of tropical cyclone (TC) genesis over the western North Pacific (WNP) and the tropical North Atlantic (ATL) by the Madden–Julian Oscillation (MJO) is investigated based on observational analysis and numerical simulations. A genesis potential index (GPI) is used to investigate relative contributions of environmental parameters associated with the MJO to TC genesis. It is found that relative humidity plays the most important role in modulating TC genesis in the WNP, the Gulf of Mexico and the western Caribbean Sea (GOM), while vertical wind shear associated with the MJO has the most significant impact on TC activities in the eastern Atlantic (EAT). To further understand the relative importance of the MJO dynamic and thermodynamic impact on TC activities, idealized numerical model experiments are conducted using the Advanced Research version of the Weather Research and Forecasting model (WRF-ARW). The results are consistent with that of observational analysis, indicating that TC activities in the WNP, the GOM and the EAT are modulated by the MJO. Specific humidity anomalies related to the MJO exert the strongest impact on TC development in the WNP and the GOM, while the vertical wind shear is the most critical factor in the EAT. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Genesis potential index; Madden–Julian oscillation; Moisture; Tropical cyclone genesis; Vertical wind shear
语种	英语
scopus关键词	atmospheric moisture; Madden-Julian oscillation; numerical model; relative humidity; tropical cyclone; weather forecasting; wind shear; Atlantic Ocean; Caribbean Sea; Gulf of Mexico; Pacific Ocean; Pacific Ocean (North)
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146313
作者单位	Key Laboratory of Meteorological Disaster, Ministry of Education/Joint International Research Laboratory of Climate and Environmental Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, Jiangsu, China; International Pacific Research Center and Department of Atmospheric Sciences, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, 1680 East West Road, POST Bldg. 401, Honolulu, HI 96822, United States
推荐引用方式 GB/T 7714	Zhao C.,Li T.. Basin dependence of the MJO modulating tropical cyclone genesis[J],2019,52(2020-09-10).
APA	Zhao C.,&Li T..(2019).Basin dependence of the MJO modulating tropical cyclone genesis.Climate Dynamics,52(2020-09-10).
MLA	Zhao C.,et al."Basin dependence of the MJO modulating tropical cyclone genesis".Climate Dynamics 52.2020-09-10(2019).