Optical and hygroscopic properties of Asian dust particles based on a horizontal Mie lidar:case study at Hefei,China  

作　　者：伯广宇 徐赤东 李爱悦 王燕飞 陈海燕 姜育强 

机构地区：[1]Institute of Technology Innovation,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China [2]Center of Medical Physics and Technology,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China

出　　处：《Chinese Optics Letters》2017年第2期6-10,共5页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant Nos.41205019 and 41665001

摘　　要：As an extension of the Mie lidar technique to measure the extinction coefficient of the surface particles, a hori- zontally pointing Mie lidar is used for determining the optical properties of Asian dust, which is an approach without knowing the actual lidar ratio. A long lasting dust event is observed based on this approach in May 2014. The ＂no dust,＂ ＂pure dust,＂ and ＂polluted dust＂ stage is observed during this event, and their optical and hygroscopic properties are discussed. Some new optical and hygroscopic features are observed, which benefit from the quantitative, multi-wavelength, and continuous measurement of the extinction related optical properties of dust particles.As an extension of the Mie lidar technique to measure the extinction coefficient of the surface particles, a hori- zontally pointing Mie lidar is used for determining the optical properties of Asian dust, which is an approach without knowing the actual lidar ratio. A long lasting dust event is observed based on this approach in May 2014. The ＂no dust,＂ ＂pure dust,＂ and ＂polluted dust＂ stage is observed during this event, and their optical and hygroscopic properties are discussed. Some new optical and hygroscopic features are observed, which benefit from the quantitative, multi-wavelength, and continuous measurement of the extinction related optical properties of dust particles.

关 键 词：DUST Optical properties 

分 类 号：TN958.98[电子电信—信号与信息处理]