【作者】 季承荔； 陶宗明； 胡顺星； 车慧正； 于杰； 封彩云； 谢晨波； 刘东； 钟志庆； 苑克娥； 曹开法； 黄见； 周军； 王英俭；

【Author】 JI Cheng-li;TAO Zong-ming;HU Shun-xing;CHE Hui-zheng;YU Jie;FENG Cai-yun;XIE Chen-bo;LIU Dong;ZHONG Zhi-qing;YUAN Ke-e;CAO Kai-fa;HUANG Jian;ZHOU Jun;WANG Ying-jian;Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences;University of Chinese Academy of Sciences;Meteorological Observation Center of CMA;Section of Physics T&R, Department of Basic Sciences, Army Officer Academy;Chinese Academy of Meteorological Sciences;Chengdu University of Information and Technology;State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences;

【机构】 中国科学院安徽光学精密机械研究所中国科学院大气成分与光学重点实验室； 中国科学院大学； 中国气象局气象探测中心； 陆军军官学院基础部物理教研室； 中国气象科学研究院； 成都信息工程大学； 中国气象科学研究院灾害天气国家重点实验室；

【摘要】 卷云对地气辐射收支平衡有重要影响。基于一台米散射激光雷达系统于2012年4月11日~12月31日在北京地区的观测资料,反演得到了卷云的云结构特征、光学厚度和有效激光雷达比。结果表明:北京地区卷云的平均高度在8 km左右,春季较低,秋季较高;卷云平均厚度为0.74km;卷云的光学厚度平均值为0.092,以光学厚度小于0.3的薄卷云为主;卷云有效激光雷达比均值为32.29Sr,夏季较低,冬季较高,与当地气温基本呈反相关关系。更多还原

【Abstract】 Cirrus cloud has an important effect on the radiation balance between the earth’s surface and the atmosphere. This sduty investigated the structure, optical depth and effective lidar ratio of cirrus cloud by used observations obtained from the Mie scattering lidar system in Beijing for the period from April 11 to December 31, 2012. The results show that the cloud height in Beijing is lower in spring and higher in autumn, with a mean value of about 8 km. The mean of cloud thickness is 0.74 km. The mean of cirrus optical depth is 0.092, and most cirrus cloud observed is thin which optical depth is less than 0.3. The cirrus effective lidar ratio is lower in summer and higher in winter, inversely related to local temperature, with a mean value of 32.29 Sr.更多还原