山东6次台风暴雨雨滴谱统计特征及区域差异  

Statistical Characteristics and Regional Differences of Raindrop Size Distribution During 6 Typhoon Rainstorms in Shandong

作　　者：王俊 郑丽娜[3] 王洪 刘畅 Wang Jun;Zheng Lina;Wang Hong;Liu Chang(Key Laboratory for Meteorological Disaster Prevention and Mitigation of Shandong,Jinan 250031;Shandong Weather Modification Office,Jinan 250031;Jinan Meteorological Bureau of Shandong,Jinan 250102;Shandong Meteorological Observatory,Jinan 250031)

机构地区：[1]山东省气象防灾减灾重点实验室,济南250031 [2]山东省人民政府人工影响天气办公室,济南250031 [3]山东省济南市气象局,济南250102 [4]山东省气象台,济南250031

出　　处：《应用气象学报》2023年第4期475-488,共14页Journal of Applied Meteorological Science

基　　金：山东省自然科学基金项目(ZR2021MD012);华东区域气象科技协同创新基金项目(QYHZ201812);山东省气象局课题(2018sdqxm12)。

摘　　要：利用多普勒天气雷达产品、降水天气现象仪观测资料和热带气象最佳路径数据集,针对2018—2021年6次影响山东的台风暴雨过程的降水特征,分析台风影响代表站暴雨雨滴谱和积分参数的变化特征。结果表明:不同台风进入山东之初的微物理特征不同,台风安比(1810)、台风温比亚(1818)、台风巴威(2008)和台风烟花(2106)偏海洋性,台风摩羯(1814)和台风利奇马(1909)偏大陆性。经过不同距离、受不同环境影响后,台风暴雨的微物理特征出现变化。参数间的统计关系显示,大陆性和海洋性对流云降水存在差异,如μ-λ统计关系等。Z-R关系较复杂,大陆性和海洋性对流云降水过程,Z-R关系无明显差异。平衡雨滴谱占比为0.8%~29.3%,较高占比(大于7.0%)平衡雨滴谱既可出现在海洋性对流云降水过程,也可以出现在大陆性对流云降水过程;过渡雨滴谱占比为22.8%~77.8%,高比例(大于50.0%)过渡谱主要出现在大陆性对流云降水过程。Based on disdrometers,Doppler radar products and conventional meteorological observation,precipitation characteristics of typhoon rainstorms affecting Shandong from 2018 to 2021 are explored,and evolution characteristics of raindrop size distribution and integral parameters of typhoon raindrops are analyzed.lgNw-Dm distribution shows that microphysical characteristics of different typhoons are different when entering Shandong.Ampil(1810),Rumbia(1818),Bavi(2008)and In-Fa(2106)are more maritime-like,while Yagi(1814)and Lekima(1909)are more continental-like.Microphysical characteristics of these typhoons are quite different after passing different distance and affected by the environment.Microphysical characteristics of Ampil and Bavi at two observation sites in north and south Shandong are similar,and rain drop size distribution(DSD)characteristics of their convective precipitation are maritime.Microphysical characteristics of Yagi are more continental when it enters Shandong.After moving northward,its DSD changes into a typical continental convective precipitation in northwest Shandong.DSD characteristics of Rumbia convective precipitation in Feicheng,Shandong Province are maritime,and change to continental near Guangrao under the influence of cold air,and then changes to maritime type over Laiyang after moving eastward.Microphysical characteristics of convective precipitation change several times.DSD characteristics of convective precipitation before Lekima denaturation are continental type(Lanling and Gaotang),while the spectral characteristics of convective precipitation DSD change to maritime(Linqu and Zhangqiu)during and after denaturation.In the process of In-Fa moving northward,the precipitation weakens obviously,and the microphysical characteristics of convective precipitation change significantly,from maritime in the south to continental in the north.The statistical relationships of various parameters between continental and maritime convective precipitation are different.Theμ-λstatistical relation of t

关 键 词：台风暴雨 雨滴谱 平衡雨滴谱 

分 类 号：P468[天文地球—大气科学及气象学]