气候变化领域集成服务门户(CCPortal): Enhanced Meiyu-Baiu Rainfall in Early Summer 2020: Aftermath of the 2019 Super IOD Event

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DOI	10.1029/2020GL090671
	Enhanced Meiyu-Baiu Rainfall in Early Summer 2020: Aftermath of the 2019 Super IOD Event
	Takaya Y.; Ishikawa I.; Kobayashi C.; Endo H.; Ose T.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	In early summer 2020, the Meiyu-Baiu rainfall was markedly enhanced, triggering devastating floods in Japan and central China. We examined the underlying processes using a climate model and analysis. The enhanced Meiyu-Baiu rainfall was reasonably predicted by the climate model initialized at the end of April. The sensitivity experiment indicated that Indian Ocean (IO) warming enhanced the Meiyu-Baiu rainfall. Moreover, we found that the warm IO condition can be traced back to the super Indian Ocean Dipole (IOD) in 2019. The IO warmth was influenced by successive processes: record strong downwelling Rossby waves excited by the IOD and tripole sea surface temperature anomalies in the tropical IO-western Pacific, their arrival to the southwestern IO in spring, and associated modulation of monsoon flow. The results suggest that the seasonal predictability of the Meiyu-Baiu rainfall in 2020 originated from the super IOD. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Mechanical waves; Oceanography; Rain; Surface waters; Central chinas; Down-welling; Indian ocean; Indian ocean dipoles; Model and analysis; Rossby wave; Sea surface temperature anomalies; Western Pacific; Climate models; air-sea interaction; climate modeling; Indian Ocean Dipole; monsoon; rainfall; sea surface temperature; spatiotemporal analysis; summer; temperature anomaly; Indian Ocean; Pacific Ocean; Pacific Ocean (West)
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169421
作者单位	Meteorological Research Institute, Japan Meteorological Agency, Ibaraki, Japan
推荐引用方式 GB/T 7714	Takaya Y.,Ishikawa I.,Kobayashi C.,et al. Enhanced Meiyu-Baiu Rainfall in Early Summer 2020: Aftermath of the 2019 Super IOD Event[J],2020,47(22).
APA	Takaya Y.,Ishikawa I.,Kobayashi C.,Endo H.,&Ose T..(2020).Enhanced Meiyu-Baiu Rainfall in Early Summer 2020: Aftermath of the 2019 Super IOD Event.Geophysical Research Letters,47(22).
MLA	Takaya Y.,et al."Enhanced Meiyu-Baiu Rainfall in Early Summer 2020: Aftermath of the 2019 Super IOD Event".Geophysical Research Letters 47.22(2020).