摘要
基于Mie散射理论在532nm的激光雷达波段下,对3种典型的卷云冰晶光学参数进行仿真,分析不同数浓度对光学参数的影响.分析结果表明:对于消光系数和光学厚度,二者均与数浓度呈线性递增关系,其中卷云冰晶1的递增速度最大、卷云冰晶2的最小;激光雷达比与数浓度没有直接关系,卷云冰晶1的激光雷达比最大、卷云冰晶3的最小.
Based on Mie scattering theory,three kinds of classic cirrus ice crystals were studied in the 532 nm lidar band.The results showed that above cirrus ice crystals had the linear relation between extinction coefficient or optical thickness and group fraction concentration,while the increasing growth rate of extinction coefficient or optical thickness of cirrus ice crystal 1 was the largest and that of cirrus ice crystal 2 was the smallest.The lidar ratio was not related to the number concentration of ice crystals,while the lidar ratio of cirrus ice crystal 1 was the largest and that of cirrus ice crystal 3 was the smallest.
作者
王金虎
蔡嘉晗
张炎
金子琪
谢槟泽
WANG Jinhu;CAI Jiahan;ZHANG Yan;JIN Ziqi;XIE Binze(Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science and Technology,Nanjing 210044,China;National Demonstration Center for Experimental Atmospheric Science and Environmental Meteorology Education,Nanjing University of Information Science & Technology,Nanjing 210044,China;Key Laboratory of Middle Atmosphere and Global Environment Observation,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China)
出处
《安徽大学学报（自然科学版）》
CAS
北大核心
2019年第5期47-51,共5页
Journal of Anhui University(Natural Science Edition)
基金
国家自然科学基金资助项目(41905026)
江苏省自然科学基金资助项目(BK20170945)
中国博士后科学基金第63批面上资助项目(2018M631554)
大气科学与环境气象实验实习教材建设项目(SXJC2017B03,SXJC2018B03)
江苏省级大学生实践创新训练计划项目(Z201710300008,201810300105T,201910300152E)
中国气象局气溶胶与云降水重点开放实验室开放课题(KDW1703)
关键词
消光系数
光学厚度
激光雷达比
OPAC软件包
冰晶
extinction coefficient
optical thickness
lidar ratio
OPAC software package
ice crystals
