气候变化领域集成服务门户(CCPortal): Distinct Raindrop Size Distributions of Convective Inner- and Outer-Rainband Rain in Typhoon Maria (2018)

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DOI	10.1029/2020JD032482
	Distinct Raindrop Size Distributions of Convective Inner- and Outer-Rainband Rain in Typhoon Maria (2018)
	Bao X.; Wu L.; Zhang S.; Li Q.; Lin L.; Zhao B.; Wu D.; Xia W.; Xu B.
发表日期	2020
ISSN	2169897X
卷号	125 期号:14
英文摘要	Unlike previous studies from a single disdrometer, this study investigates and compares the raindrop size distribution (RSD) characteristics of convective inner-rainband rain (CIR) and convective outer-rainband rain (COR) in Typhoon Maria (2018), simultaneously captured for the first time by a newly established observational network including nine disdrometers in the northeastern Fujian Province of China. It is shown that the radar reflectivity for the CIR increases sharply with decreasing height below the melting layer, whereas it remains nearly unchanged for the COR. This suggests the dominance of collision-coalescence process in the CIR, that is, the collection of small raindrops by larger ones as they fall. Thus, the surface-level CIR generally has far lower concentration of small raindrops and larger mean raindrop diameter than those previously found in the COR. Close to the tropical cyclone (TC) eyewall, it is found for the first time that although the raindrops are relatively large, the raindrop concentration is too low to yield a high rain rate. In contrast, high rain rates are concentrated at a distance of about 1.5–2.5 times the radius of maximum wind from the TC center, where there are appropriate normalized concentrations (log10Nw) and corresponding raindrop diameters. In addition, this study demonstrates differences between the CIR and COR in terms of the RSD evolution with increasing rain rate and the radar reflectivity–rain rate (Z-R) and shape-slope (μ-Λ) relationships, confirming the existence of different rain microphysics in various rain regions of a TC. ©2020. The Authors.
英文关键词	radial rain rate; rain microphysical characteristics; raindrop size distribution; Typhoon Maria
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/185909
作者单位	Key Laboratory of Numerical Modeling for Tropical Cyclones and Shanghai Typhoon Institute, China Meteorological Administration, Shanghai, China; Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences, Fudan University, Shanghai, China; Pacific Typhoon Research Center, Key Laboratory of Meteorological Disaster of the Ministry of Education, Nanjing University of Information Science and Technology, Nanjing, China; Shanghai Meteorological Bureau, China Meteorological Administration, Shanghai, China; National Meteorological Information Center, China Meteorological Administration, Beijing, China
推荐引用方式 GB/T 7714	Bao X.,Wu L.,Zhang S.,et al. Distinct Raindrop Size Distributions of Convective Inner- and Outer-Rainband Rain in Typhoon Maria (2018)[J],2020,125(14).
APA	Bao X..,Wu L..,Zhang S..,Li Q..,Lin L..,...&Xu B..(2020).Distinct Raindrop Size Distributions of Convective Inner- and Outer-Rainband Rain in Typhoon Maria (2018).Journal of Geophysical Research: Atmospheres,125(14).
MLA	Bao X.,et al."Distinct Raindrop Size Distributions of Convective Inner- and Outer-Rainband Rain in Typhoon Maria (2018)".Journal of Geophysical Research: Atmospheres 125.14(2020).