气象2017，Vol.43Issue(1)：91-100,10.DOI:10.7519/j.issn.1000-0526.2017.01.010
基于降水微物理特征测量仪的雨滴形状观测与分析
Observation and Analysis of Raindrop Shape Based on the Precipitation Micro-Physical Characteristics Sensor
摘要
Abstract
Anstract:A self-developed precipitation micro-physical characteristics sensor was applied in field experi-ment and a large quantity of raindrop images were obtained.The causing reasons and handling methods for outlet raindrop images were discussed,and a vectorized method based on the Akima interpolation under the polar coordinate was proposed in this paper.Then,the characteristics of average raindrop shape and axis ratio distribution were analyzed.The results show that the small drops (<1 mm in diameter)have sphe-roids shapes,the moderate drops (<1 .0 mm and <3 .0 mm in diameter)have oblate spheroids shapes and the larger drops (>3 .0 mm in diameter)have more bulged tops and flattened bases.The mean axis ratio distribution is in good agreement with the empirical relationships,and the deviation between them is smal-ler than 0 .04 .The raindrops ranging from 3 .4 to 3 .8 mm are more spherical than those from empirical model.关键词
降水微物理特征测量仪(PMCS)/Akima插值/雨滴形状/轴比分布模型Key words
precipitation micro-physical characteristics sensor (PMCS )/Akima interpolation/raindrop shape/axis ratios distribution分类
天文与地球科学引用本文复制引用
舒小健,高太长,刘西川,胡帅,江诗阳..基于降水微物理特征测量仪的雨滴形状观测与分析[J].气象,2017,43(1):91-100,10.基金项目
国家自然科学基金项目（41327003、41475020和41505135）及江苏省自然科学基金青年基金项目（BK20150708）共同资助 （）
