J4 ›› 2013, Vol. 30 ›› Issue (1): 46-51.

• 激光雷达专辑 • 上一篇    下一篇

基于多普勒激光雷达的2011年春季北京地区气溶胶探测实验分析

靳磊1 吴松华1 陈玉宝2 闫宝东1 宋小全1 刘秉义1 刘智深1   

  1. 1 中国海洋大学海洋遥感研究所 山东 青岛266003; 
    2 中国气象局气象探测中心 北京 100081
  • 出版日期:2013-01-28 发布日期:2013-01-11
  • 通讯作者: 吴松华(1976-)山西省大同市,博士,教授,主要从事大气海洋激光遥感研究。 E-mail:wush@ouc.edu.cn
  • 作者简介:靳磊(1987-)河南省郑州市,硕士,主要从事激光雷达研究。Email:hnxz_jl@yahoo.cn
  • 基金资助:

    国家自然科学基金青年基金资助(40905005)

Doppler lidar observations of aerosols over Beijing during spring 2011

JIN lei 1 , WU Song-hua 1, CHEN Yu-bao 2, YAN Bao-dong 1, SONG Xiao-quan 1, LIU Bing-yi1   

  1. 1 Ocean Remote Sensing Institute, Ocean University of China, Qingdao 266003, China; 
    2 CMA Meteorological Observation Centre, Beijing 100081, China
  • Published:2013-01-28 Online:2013-01-11

摘要:

介绍多普勒激光雷达于2011年3月21日至4月19日期间在北京南郊进行的观测实验,利用Fernald方法对气溶胶消光系数进行了反演和重点分析。结合同一时段探空气球得到的数据,分析大气结构及其变化。观测数据表明:在晴朗无云并且大气较为清洁的条件下,气溶胶消光系数从低空向高空平缓递减;遇到多云天气,气溶胶消光系数会在云层处增大;另外,低空的气溶胶消光系数有较明显的日变化特征,早上相较于晚上要低些。实验期间,地面至10km的气溶胶平均光学厚度在0.52。

关键词: 大气光学, 激光雷达, 气溶胶, Fernald法, 光学厚度

Abstract:

It describes the Doppler lidar observations carried out in the southern suburbs of Beijing on March 21, 2011 to April 19, focusing on the analysis of the aerosol extinction coefficient retrieved by the Fernald method. Combined with data obtained by the radiosonde at the same period, the paper illustrates the characteristics and changes of aerosols in the boundary layer and lower stratosphere. Observational data indicates that in the cloudless and clear day, aerosol extinction coefficient descends gradually from low to high altitude. In cloudy weather, aerosol extinction coefficient increases at the cloud layer. In addition, the low-altitude aerosol extinction coefficient has apparent diurnal variation characteristics that aerosol extinction coefficient in the morning is lower than that of evening. During the experiment, the mean optical thickness from the ground to 10km is 0.52.

Key words: atmospheric optics, lidar, aerosol, Fernald method, optical thickness