气候变化领域集成服务门户(CCPortal): Regional variability of summertime raindrop size distribution from a network of disdrometers in Beijing

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DOI	10.1016/j.atmosres.2021.105591
	Regional variability of summertime raindrop size distribution from a network of disdrometers in Beijing
	Han Y.; Guo J.; Yun Y.; Li J.; Guo X.; Lv Y.; Wang D.; Li L.; Zhang Y.
发表日期	2021
ISSN	0169-8095
卷号	257
英文摘要	Regional raindrop size distribution (DSD) features are poorly understood due to the lack of observations. Here we investigate the regional variability of summertime DSD in Beijing, using the DSD observations from ten disdrometer sites from April to September 2017. The characteristics of DSD are analyzed for both convective and stratiform precipitation, mainly classified by rain rate (R). The shape (μ) and slope (λ) parameters follow a second-degree polynomial regression relationship for both stratiform and convective precipitation. On average, stratiform precipitation is found to have larger values of μ and λ than convective precipitation, whereas convective precipitation has a larger mass-weighted mean diameter (Dm) and a generalized intercept parameter (Nw). Interestingly, the north of Beijing has larger values of μ and λ, as opposed to Dm and Nw that exhibit greater values in the south, which could probably be attributed to terrain differences. The rain rate dependence on DSD is analyzed as well. In general, the Dm-R and Nw-R relationships follow a power-law distribution, and both Dm and Nw increase significantly with R. As the rain rate increases, Dm keeps increasing to around 1.5 mm until an equilibrium state is reached. The findings obtained here could provide useful reference for better estimations of rainfall using the remote sensing techniques. © 2021 Elsevier B.V.
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/236756
作者单位	State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, 100081, China; Meteorological Observation Center, Beijing Meteorological Bureau, Beijing, 100089, China; Meteorological Observation Centre, Chinese Meteorological Administration, Beijing, 100081, China
推荐引用方式 GB/T 7714	Han Y.,Guo J.,Yun Y.,et al. Regional variability of summertime raindrop size distribution from a network of disdrometers in Beijing[J],2021,257.
APA	Han Y..,Guo J..,Yun Y..,Li J..,Guo X..,...&Zhang Y..(2021).Regional variability of summertime raindrop size distribution from a network of disdrometers in Beijing.Atmospheric Research,257.
MLA	Han Y.,et al."Regional variability of summertime raindrop size distribution from a network of disdrometers in Beijing".Atmospheric Research 257(2021).