DOI: 10.1029/2017JD027950
Scopus记录号: 2-s2.0-85049841021
论文题名: Drop Size Distribution Characteristics of Seven Typhoons in China
作者: Wen L. ; Zhao K. ; Chen G. ; Wang M. ; Zhou B. ; Huang H. ; Hu D. ; Lee W.-C. ; Hu H.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 12 起始页码: 6529
结束页码: 6548
语种: 英语
英文关键词: China
; drop size distribution
; microphysical characteristics
; precipitation
; typhoon
Scopus关键词: atmospheric convection
; cloud droplet
; cloud microphysics
; instrumentation
; parameter estimation
; precipitation (climatology)
; radar
; raindrop
; size distribution
; typhoon
; vertical distribution
; Atlantic City
; China
; Guangdong
; Jiangsu
; New Jersey
; Pacific County
; Taiwan
; United States
; Washington [United States]
英文摘要: This study is the first attempt to investigate the characteristics of the drop size distribution (DSD) and drop shape relation (DSR) of seven typhoons after making landfall in China. Four typhoons were sampled by a C-band polarimetric radar (CPOL) and a two-dimensional video disdrometer (2DVD) in Jiangsu Province (East China) while three typhoons were sampled by two 2DVDs in Guangdong Province (south China). Although the DSD and DSR are different in individual typhoons, the computed DSD parameters in these two groups of typhoons possess similar characteristics. The DSR is more spherical, and the shape-slope (μ-Λ) relation has a significantly lower value of μ for a given Λ than that in typhoons in the Taiwan area, indicating different microphysical processes of typhoons between continental China and other regions (western Pacific and Atlantic). The convective precipitation of typhoons contains higher raindrop concentration and lower raindrop diameter than that of the maritime convection. A Z (reflectivity factor)-R (rain rate) relationship, Z = 147.28R1.38, is derived for typhoons over land in China. The contoured frequency by altitude diagrams of CPOL polarimeteric parameters and the vertical distributions of hydrometeors and retrieved DSD parameters are further investigated to better reveal the microphysical processes of two typhoons (Matmo and Soudelor). Despite the differences in DSDs and polarimetric parameters, microphysical characteristics in both typhoons are similar. The CPOL-derived microphysical properties, in conjunction with high freezing level, suggest that warm rain accretion processes dominate typhoon rainfall after landfall in China. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113684
Appears in Collections: 气候减缓与适应
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作者单位: Key Laboratory for Mesoscale Severe Weather/MOE and School of Atmospheric Science, Nanjing University, Nanjing, China; State Key Laboratory of Severe Weather and Joint Center for Atmospheric Radar Research, CMA/NJU, Beijing, China; Xichang Satellite Launch Center, Xichang, China; Guangzhou Central Meteorological Observatory, Guangzhou, China; Earth Observing Laboratory, National Center for Atmospheric Research, Boulder, CO, United States; Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, China
Recommended Citation:
Wen L.,Zhao K.,Chen G.,et al. Drop Size Distribution Characteristics of Seven Typhoons in China[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(12)