Raindrop characteristics analysis (Oct 25, 2015) of natural rainfall in Zhengzhou city of Yellow River basin

3rd International Conference on Energy Equipment Science and Engineering

Liu, Nana^1 ; Lin, Jing^2 ; Che, Shuhong^3 ; Yang, Xueqin^4 ; Li, Weiwei^5 ; Shen, Zhenzhou^6

Ningxia Agricultural Institute of Survey and Design, Yinchuan, Ningxia

471900, China^1

Fuzhou Entry-Exit Inspection and Quarantine Bureau of P.R.C Fuzhou, Fujian

350015, China^2

Middle Reach Hydrology and Water Resource Bureau of Yellow River Conservancy Commission, Jinzhong

030600, China^3

Henan Institute of Science and Technology, Xinxiang, Henan

453003, China^4

Yellow River Engineering Consulting Co., Ltd, Zhengzhou, Henan

450003, China^5

Key Laboratory of Soil and Water Loss Process and Control on the Loess Plateau of the MWR, Henan

450003, China^6

关键词: Characteristics analysis;    Loess slopes;    Natural rainfalls;    Peak values;    Rainfall intensity;    Terminal velocity;    Yellow River basin;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012147/pdf
DOI  :  10.1088/1755-1315/128/1/012147

来源: IOP

【 摘 要 】

Raindrop characteristics, including speed and size of raindrops, in Zhengzhou city of Yellow River basin were analyzed through a natural rainfall on the loess slope. Results showed that the process of natural rainfall belonged to a parabola and counts, size and terminal velocity would increase with the rainfall intensity rising. Besides, the size and terminal velocity of natural raindrops were relatively scattered; In the process of individual rainfall, the terminal velocity and its peak value were mainly focused between 1∼5m/s and 3.4m/s, respectively. Size of raindrops were mainly consisted of 0.125-1.25mm, among which the terminal velocity of raindrops with a size of 0.125mm, 0.25mm, 0.375mm, 0.5mm, 0.75mm and 1mm were primarily 0.8-2.6m/s, 1-3.4m/s, 1.4-3.4m/s, 1.8-3.4m/s, 3-4.2m/s and 3.4-5m/s, respectively.