DOI: 10.1016/j.atmosres.2017.10.003
Scopus记录号: 2-s2.0-85042179373
论文题名: Evolution of drop size distribution in natural rain
作者: D'Adderio L.P. ; Porcù F. ; Tokay A.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 200 起始页码: 70
结束页码: 76
语种: 英语
英文关键词: Breakup detection algorithm
; Collisional breakup
; Equilibrium drop size distribution
; Radarmeteorology
; Time evolution
Scopus关键词: Drops
; NASA
; Precipitation (meteorology)
; Size distribution
; Collisional breakup
; Detection algorithm
; Equilibrium drop sizes
; Radarmeteorology
; Time evolutions
; Rain
; algorithm
; meteorology
; numerical model
; radar
; raindrop
; rainfall
; size distribution
英文摘要: Both numerical modeling and laboratory experiments document the possibility of a raindrop size distribution (DSD) to evolve to an equilibrium stage (EDSD), where all the principal processes occur at steady rates. The aim of this work is to observe the temporal behavior of the DSD and to directly investigate the conditions favorable to the onset of the EDSD in natural rain. We exploited a large disdrometer dataset collected in the framework of the Ground Validation activities related to the NASA Global Precipitation Measurement mission. More than 200,000 one-minute data of two-dimensional video disdrometer (2DVD) are collected over USA to represent a wide range of precipitation types. The original data are averaged over 2 min and an automatic algorithm is used on a selected subset to identify samples with EDSD. Results show that the EDSD occurs mainly in convective events and lasts for very short time intervals (2 to 4 min). It is more frequent for rain rate between 20 and 40 mm h− 1 and it mostly occurs during sharp increase of precipitation rates. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109012
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Dep. of Physics and Earth Science, University of Ferrara, Italy; Dep. of Physics and Astronomy, University of Bologna, Italy; JCET-University of Maryland Baltimore County and NASA-Goddard Space Flight Center, Greenbelt, MD, United States
Recommended Citation:
D'Adderio L.P.,Porcù F.,Tokay A.. Evolution of drop size distribution in natural rain[J]. Atmospheric Research,2018-01-01,200