介绍了多普勒激光雷达于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10 km的气溶胶平均光学厚度在0.52.
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