物理学报Issue(24)：1-9,9.DOI:10.7498/aps.63.244206
多波长激光雷达探测多种天气气溶胶光学特性与分析∗
Detections and analyses of aerosol optical prop erties under different weather conditions using multi-wavelength Mie lidar
摘要
Abstract
A multi-wavelength Mie-scattering lidar is designed and established for detecting the aerosol profiles under different weather conditions. And inversion algorithm about multi-wavelength lidar signal is studied. The atmosphere observations are carried out in Xi’an city in the winter of 2013 by using the multi-wavelength lidar. The mixed-layer depth, aerosol particle size characteristics, and atmosphere extinction are studied and analyzed on haze, cloudy and sunny days. The mixed layer depth is lower on haze day and is just about 0.4 km, while it can reach 0.5–0.8 km on sunny day. The aerosol particle characteristics are discussed under different weather conditions by using two Ångström exponents, one for the short-wavelength range (355 nm/532 nm) and other for long-wavelength range (532 nm/1064 nm). The long-wavelength Ångström exponent is less than the short-wavelength Ångström exponent on haze day, and it is contrary on sunny day. The results show that there are more coase particles on pollution day. The Ångström exponents significantly decrease, and even become negative in the clouds, showing that cloud particles are relatively large.关键词
多波长激光雷达/气溶胶/Ångström指数/混合层高度Key words
multi-wavelength lidar/aerosol/Ångström exponent/mixed-layer depth引用本文复制引用
狄慧鸽,侯晓龙,赵虎,阎蕾洁,卫鑫,赵欢,华灯鑫..多波长激光雷达探测多种天气气溶胶光学特性与分析∗[J].物理学报,2014,(24):1-9,9.基金项目
国家自然科学基金(批准号:61308107)、高等学校博士学科点专项科研基金(批准号:20126118120003)和陕西省自然科学基金(批准号:2012JQ5002)资助的课题.@@@@* Project supported by the National Natural Science Foundation of China (Grant No.61308107), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No.20126118120003), and the Natural Science Foundation of Shanxi Province, China (Grant No.2012JQ5002) （批准号:61308107）
