气候变化领域集成服务门户(CCPortal): Diurnal Variation of Meiyu Rainfall in the Yangtze Plain During Atypical Meiyu Years

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DOI	10.1029/2019JD031742
	Diurnal Variation of Meiyu Rainfall in the Yangtze Plain During Atypical Meiyu Years
	Zhang A.Q.; Chen Y.L.; Zhou S.N.; Cui C.G.; Wan R.; Fu Y.F.
发表日期	2020
ISSN	2169897X
卷号	125 期号:1
英文摘要	The diurnal variation of precipitation reflects the influence of atmospheric heat and dynamic processes on the water cycle. Using multiple data sets, we carried out case studies and statistical analysis of the diurnal variation in Meiyu rainfall in atypical Meiyu years. Our results show that the morning precipitation was induced by strong southwesterly moisture transport and was mainly composed of stratiform pixels, whereas the precipitation occurring in the afternoon was mainly composed of convective pixels affected by updrafts. The diurnal variation in precipitation in the atypical Meiyu years appeared as a bimodal structure with peaks in early morning (06:30 LST) and afternoon (16:00 LST), which was different from the single morning peak (09:30 LST) in the normal Meiyu years and reported previously. Further research indicated that the morning peak is related to the low-level water vapor flux, whereas the afternoon peak is related to the local solar heating. In addition, the water vapor flux in the Yangtze Plain was characterized by strong morning and weak afternoon fluxes during both normal and atypical Meiyu periods. The diurnal variation in the low-level water vapor flux is thought to be influenced by the intensity of, and distance from, the subtropical high. ©2020. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186239
作者单位	School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China; School of Atmospheric Science, Sun Yat-sen University, Zhuhai, China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China; Anhui Meteorological Observatory, Hefei, China; Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research, Institute of Heavy Rain, China Meteorological Administration, Wuhan, China
推荐引用方式 GB/T 7714	Zhang A.Q.,Chen Y.L.,Zhou S.N.,et al. Diurnal Variation of Meiyu Rainfall in the Yangtze Plain During Atypical Meiyu Years[J],2020,125(1).
APA	Zhang A.Q.,Chen Y.L.,Zhou S.N.,Cui C.G.,Wan R.,&Fu Y.F..(2020).Diurnal Variation of Meiyu Rainfall in the Yangtze Plain During Atypical Meiyu Years.Journal of Geophysical Research: Atmospheres,125(1).
MLA	Zhang A.Q.,et al."Diurnal Variation of Meiyu Rainfall in the Yangtze Plain During Atypical Meiyu Years".Journal of Geophysical Research: Atmospheres 125.1(2020).