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DOI10.1016/j.dynatmoce.2020.101186
Atmospheric driving mechanisms of extreme precipitation events in July of 2017 and 2018 in western Japan
Nayak S.; Takemi T.
发表日期2021
ISSN03770265
卷号93
英文摘要The occurrence of extreme precipitation events is now a serious concern in recent years in Japan. This study explores the atmospheric driving mechanisms of two extreme precipitation events occurred during 5–6 July 2017 and 5–8 July 2018 over western Japan. We identified that the atmospheric transport of large amounts of moisture and wind streams with wind speed of minimum 15 m s−1 from south of Japan towards north on the days before these torrential precipitation events are mainly responsible for the July 2017 and July 2018 floods over western Japan. However, the contributions from the moisture advections (both vertical and horizontal) to the atmospheric water budget plays key roles to intensify the precipitations during the said torrential events. We also find that the prominent moisture flux convergence and well-developed moist conditions mainly maintain these heavy precipitation events over the downpour affected area. Our overall analysis suggests that the atmospheric factors driving to all these two heavy precipitation events are qualitatively robust and vital to explain the mechanism of extreme precipitations. © 2020 The Author(s)
英文关键词Equivalent potential temperature; Extreme precipitation event; Moisture advection; Moisture flux convergence; Moisture transport
语种英语
scopus关键词Budget control; Moisture; Wind; Atmospheric factors; Atmospheric transport; Extreme precipitation; Extreme precipitation events; Heavy precipitation; Moisture advection; Moisture flux convergences; Precipitation events; Precipitation (meteorology); advection; atmospheric moisture; atmospheric transport; extreme event; moisture flux; moisture transfer; potential temperature; precipitation (climatology); precipitation assessment; Japan
来源期刊Dynamics of Atmospheres and Oceans
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/178280
作者单位Disaster Prevention Research Institute, Kyoto University, Kyoto, 6110011, Japan
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Nayak S.,Takemi T.. Atmospheric driving mechanisms of extreme precipitation events in July of 2017 and 2018 in western Japan[J],2021,93.
APA Nayak S.,&Takemi T..(2021).Atmospheric driving mechanisms of extreme precipitation events in July of 2017 and 2018 in western Japan.Dynamics of Atmospheres and Oceans,93.
MLA Nayak S.,et al."Atmospheric driving mechanisms of extreme precipitation events in July of 2017 and 2018 in western Japan".Dynamics of Atmospheres and Oceans 93(2021).
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