气候变化领域集成服务门户(CCPortal): Modulation of north pacific and north atlantic tropical cyclones by tropical transbasin variability and ENSO during May-October

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DOI	10.1175/JCLI-D-19-0866.1
	Modulation of north pacific and north atlantic tropical cyclones by tropical transbasin variability and ENSO during May-October
	CHEN S.; ZHAO H.; RAGA G.B.; KLOTZBACH P.J.
发表日期	2021
ISSN	08948755
起始页码	2127
结束页码	2144
卷号	34 期号:6
英文摘要	This study highlights the distinct modulation of May-October tropical cyclones (TCs) in the western North Pacific (WNP), eastern North Pacific (ENP), and North Atlantic (NATL) Ocean basins by tropical transbasin variability (TBV) and ENSO. The pureTBV significantly modulates total TC counts in all three basins, with more TCs in theWNPand ENP and fewer TCs in the NATL during warm TBV years and fewer TCs in the WNP and ENP and more TCs in the NATL during cold TBV years. By contrast, the pure ENSO signal shows no impact on total TC count over any of the three basins. These results are consistent with changes in large-scale factors associated with TBV and ENSO. Low-level relative vorticity (VOR) is an important driver of WNP TC genesis frequency, with broad agreement between the observed spatial distribution of TC genesis and TBV/ENSO-associated VOR anomalies. TBV significantly affects ENP TC frequency as a result of changes in basinwide vertical wind shear and sea surface temperatures, whereas the modulation in TC frequency by ENSO is primarily caused by a north-south dipole modulation of large-scale atmospheric and oceanic factors. The pure TBV-related low-level VOR changes appear to be the most important factor modulating NATL TC frequency. Changes in large-scale factors compare well with the budget of synoptic-scale eddy kinetic energy. Possible physical processes associated with pure TBV and pure ENSO that modulate TC frequency are further discussed. This study contributes to the understanding of TC interannual variability and could thus be helpful for seasonal TC forecasting. © 2021 American Meteorological Society. All rights reserved.
英文关键词	Air-sea interaction; Climate variability; ENSO; Tropical cyclones
语种	英语
scopus关键词	Budget control; Hurricanes; Kinetic energy; Kinetics; Oceanography; Storms; Surface waters; Tropics; Eastern north pacific; Interannual variability; Physical process; Relative vorticity; Sea surface temperature (SST); Synoptic-scale eddies; Vertical wind shear; Western North Pacific; Frequency modulation; air-sea interaction; climate variation; El Nino-Southern Oscillation; spatial distribution; tropical cyclone; vorticity; Atlantic Ocean; Atlantic Ocean (North); Pacific Ocean; Pacific Ocean (North)
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178686
作者单位	Key Laboratory of Meteorological Disaster, Ministry of Education, and Joint International Research Laboratory of Climate and Environment Change, and Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disaster, Nanjing University of Information Science and Technology, Nanjing, China; Key Laboratory of Meteorological Disaster, Ministry of Education, and Joint International Research Laboratory of Climate and Environment Change, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disaster, and Pacific Typhoon Research Center, Nanjing University of Information Science and Technology, Nanjing, China; Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de Mexico, Mexico City, Mexico; Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
推荐引用方式 GB/T 7714	CHEN S.,ZHAO H.,RAGA G.B.,et al. Modulation of north pacific and north atlantic tropical cyclones by tropical transbasin variability and ENSO during May-October[J],2021,34(6).
APA	CHEN S.,ZHAO H.,RAGA G.B.,&KLOTZBACH P.J..(2021).Modulation of north pacific and north atlantic tropical cyclones by tropical transbasin variability and ENSO during May-October.Journal of Climate,34(6).
MLA	CHEN S.,et al."Modulation of north pacific and north atlantic tropical cyclones by tropical transbasin variability and ENSO during May-October".Journal of Climate 34.6(2021).