| 扫描式气溶胶激光雷达研制与观测研究 |
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| 引用本文： | 陈超,王章军,宋小全,张涛,杜立彬,孟祥谦,刘兴涛,李先欣,李辉,庄全风,王秀芬. 扫描式气溶胶激光雷达研制与观测研究[J]. 红外与激光工程, 2018, 47(12): 1230009-1230009(7). DOI: 10.3788/IRLA201847.1230009 |
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| 作者姓名： | 陈超 王章军 宋小全 张涛 杜立彬 孟祥谦 刘兴涛 李先欣 李辉 庄全风 王秀芬 |
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| 作者单位： | 1.齐鲁工业大学(山东省科学院) 山东省科学院海洋仪器仪表研究所,山东 青岛 266100; |
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| 基金项目： | 国家自然科学基金（41405023）;国家重点研发计划（2016YFC1400300）;海洋公益性行业科研专项（201505031）;山东省自主创新及成果转化专项（2014ZZCX06103）;山东省自然科学基金（ZR2017QD009，ZR2015PD002，ZR2015PD007） |
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| 摘 要： | 气溶胶在大气光学、大气辐射、大气化学、大气污染和云物理学等领域具有重要研究意义，是大气监测的重要要素。为了更好地研究大气气溶胶光学特性及其时空变化特征，山东省科学院海洋仪器仪表研究所研制了基于532 nm波长、单脉冲能量60J、可进行三维扫描测量的气溶胶激光雷达。主要介绍了激光雷达的结构设计、技术指标、探测原理、探测模式、观测实验与数据分析。通过激光雷达在青岛小麦岛海洋环境监测站的观测实验数据，分析了不同天气条件下的大气水平能见度，验证了时间-高度显示、距离-高度显示与平面-位置显示测量模式的有效性。通过多种观测模式的数据，利用Fernald方法反演了不同时刻的气溶胶消光系数，并分析了气溶胶与云光学特性的时空变化特征。探测结果表明:扫描式气溶胶激光雷达可以有效测量大气水平能见度，通过扫描系统可以获取不同方向的气溶胶性质分布特征从而扩展了其探测范围。多种探测模式相结合可以获取云、气溶胶和边界层时空变化特征。
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| 关 键 词： | 激光雷达 扫描式 气溶胶 能见度 边界层 |
| 收稿时间： | 2018-07-05 |
Development and observational studies of scanning aerosol lidar |
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| Abstract: | Aerosol plays an important role in atmospheric optics, atmospheric radiation, atmospheric chemistry, atmospheric pollution and cloud microphysics, which has been an important factor of atmospheric monitoring. To better study temporal and spatial variation of optical characteristics of atmospheric aerosol, a scanning aerosol lidar employing a pulsed laser with single laser energy of 60 J at 532 nm was developed by Institute of Oceanographic Instrumentation, Qilu University of Technology,Shandong Academy of Sciences. The structure, technical parameters, detection principle and modes were introduced; some experiments were performed and analyzed. Through the measurements in Wheat Island marine environment monitoring station, the horizontal visibility under different weather conditions was analyzed. It was proved that the developed lidar can provide detection modes of time height indication(THI), range height indication(RHI) and plane position indication(PPI). The temporal and spatial variation of aerosol and cloud properties were analyzed through the data of different detection modes and extinction coefficient of aerosol in different moments retrieved by the Fernald method. The observational results show that the lidar can effectively acquire horizontal visibility, the distribution of aerosol in different directions, the temporal and spatial variation of aerosol, cloud and the structure of boundary layer. |
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