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DOI	10.1016/j.atmosres.2020.105292
	Characterization of raindrop size distributions and its response to cloud microphysical properties
	Thomas A.; Kanawade V.P.; Chakravarty K.; Srivastava A.K.
发表日期	2021
ISSN	0169-8095
卷号	249
英文摘要	Cloud feedbacks continue to alter with climate change, which remains the largest source of uncertainty in global climate. Raindrop size distribution (DSD) is a fundamental characteristic of cloud microphysical and dynamical processes. This study characterizes the DSD and its response to cloud microphysical properties during the Indian Summer Monsoon season (June-October 2013–2015). The derived rain rate varied from 0.50 to 395.4 mm/h, which was segregated into stratiform rain (mean and standard deviation of 2.12 ± 1.24 mm/h) and convective rain (13.10 ± 14.45 mm/h). We found that as the convective DSD mode diameter gradually shifts to a larger drop size with increasing rain rate, the number concentration of small-sized rain drops decreased by about three orders of magnitude. While the mass-weighted mean diameter and normalized DSD scaling parameter were significantly higher for convective rain than stratiform rain, the normalized DSD scaling parameter was lowest for both convective and stratiform rain compared to previous studies over this region. The stratiform DSD was more skewed towards large raindrop size at a high cloud effective radius compared to a low cloud effective radius. However, the opposite response of the DSD for convective rain suggests the predominance of small-sized cloud/ice hydrometeors. This finding was further corroborated by the presence of narrower DSD at high cloud droplet number concentration compared to a low cloud droplet number concentration for the convective rain. The low wind shear and high convective available potential energy for convective rain further substantiated the persistent convective cores during monsoon accompanied by the formation of large size raindrops in the convective systems. Such a distinct response of DSD to different rain regimes could help in the short-term prediction of extreme rainfall events. © 2020 Elsevier B.V.
英文关键词	Cloud microphysics; Rain rate; Raindrop size distribution; Stratiform and convective rainfall
语种	英语
scopus关键词	Atmospheric thermodynamics; Climate change; Drops; Potential energy; Size distribution; Cloud droplet number concentrations; Cloud effective radius; Cloud microphysical properties; Convective available potential energies; Fundamental characteristics; Mean and standard deviations; Raindrop size distribution; Three orders of magnitude; Rain; cloud cover; cloud microphysics; convective system; monsoon; potential energy; precipitation intensity; raindrop; size distribution; stratiform cloud; summer; wind shear
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141660
作者单位	Centre for Earth, Ocean and Atmospheric Sciences, University of Hyderabad, 500046, Hyderabad, Telangana, India; Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, India
推荐引用方式 GB/T 7714	Thomas A.,Kanawade V.P.,Chakravarty K.,et al. Characterization of raindrop size distributions and its response to cloud microphysical properties[J],2021,249.
APA	Thomas A.,Kanawade V.P.,Chakravarty K.,&Srivastava A.K..(2021).Characterization of raindrop size distributions and its response to cloud microphysical properties.Atmospheric Research,249.
MLA	Thomas A.,et al."Characterization of raindrop size distributions and its response to cloud microphysical properties".Atmospheric Research 249(2021).