Variations of Raindrop Size Distribution and Radar Retrieval in Outer Rainbands of Typhoon Mangkhut(2018)

作     者：Jingjing LYU Huiwen XIAO Yuchun DU Lina SHA Yuqing DENG Weikai JIA Shengjie NIU Yue ZHOU Guqian PANG Jingjing LYU;Huiwen XIAO;Yuchun DU;Lina SHA;Yuqing DENG;Weikai JIA;Shengjie NIU;Yue ZHOU;Guqian PANG

作者机构：Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD)Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological AdministrationNanjing University of Information Science&TechnologyNanjing 210044 Hubei Key Laboratory for Heavy Rain Monitoring and Warning ResearchInstitute of Heavy RainChina Meteorological AdministrationWuhan 430205 Climate Center of Guangdong ProvinceGuangzhou 510080 College of Earth and Planetary SciencesUniversity of Chinese Academy of SciencesBeijing 100049 

出 版 物：《Journal of Meteorological Research》 (气象学报（英文版）)

年 卷 期：2022年第36卷第3期

页      面：500-519页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：Supported by the National Key Research and Development Program of China (2018YFC1507905) National Natural Science Foundation of China (41675136 and 41875170) National Undergraduate Innovation and Entrepreneurship Training Program (201910300040Z) Opening Project of Key Laboratory for Aerosol–Cloud–Precipitation of China Meteorological Administration (KDW1405) Natural Science Foundation of Guangdong Province of China-Major Basic Research and Cultivation Projects (2015A030308014) Guangxi Key Research and Development Program (AB20159013) 

主　　题：typhoon two-dimensional video disdrometer drop size distribution axis ratio quantitative precipitation estimation 

摘      要：The evolution of the microphysical properties of raindrops from Typhoon Mangkhut’s outer rainbands as the storm made landfall in South China in September 2018 was *** observations by three two-dimensional video disdrometers deployed in central Guangdong Province were analyzed *** was found that the radial distribution of the median volume diameter(D_(0))and normalized intercept parameter(N_(w))varied in different stages,and that raindrops smaller than 3.0 mm contributed more than 99%of the total *** the characteristics of precipitation in the typhoon outer rainband,a modified stratiform rain(SR)-convective rain(CR)separator line is proposed based on D_(0) and N_(w) ***,an“S-C likelihood indexis introduced,which was used to classify three rain types(SR,CR,and mixed rain).The CR results were highly consistent with those of the improved typhoon precipitation classification method based on rain *** calculating effectively the radar reflectivity factor(Ze)in the Ku and Ka bands,D0-Ze and N_(w)-D_(0) empirical relations were thereby derived for improving the accuracy of rainfall *** the four quantitative precipitation estimators using S-band dual-polarimetric radar parameters simulated by the T-matrix method,the estimator that adopted the specific differential phase and differential reflectivity was found to be the most effective for both SR and CR.