探测对流层底部CO2廓线振动拉曼激光雷达定标实验

基于振动拉曼散射原理,研制了可探测对流层底部大气CO₂浓度分布的激光雷达系统,结合三维光学扫描系统的使用,该激光雷达具备了三维扫描功能,能够实现大气CO₂浓度的空间分布监测. 结合该激光雷达能够实现三维扫描的特点,提出了振动拉曼激光雷达新的定标方法,开展了激光雷达定标实验,实现了该雷达系统的准确定标,从而获得了合肥地区CO₂廓线结果. 对提出的定标实验结果的不确定性进行分析,得出该方法的不确定度为1%,证明了该定标实验方法的可靠性. 

Calibration Experiment of Vibrational Raman Lidar for Bottom Troposphere Carbon Dioxide Profile Detecting

Based on the principle of Raman scatting, the lower troposphere CO₂ profile monitoring vibrational Raman lidar system was developed. Combined with the use of three-dimensional optical scanning system, the lidar has the three-dimensional scanning function, which can realize the spatial distribution of atmospheric carbon dioxide profile monitoring. Combined with the lidar characteristic, a new calibration method of vibrational Raman lidar was presented, and the lidar system calibration experiments were carried out to obtain the profile line of carbon dioxide Hefei area. The calibration uncertainty of the experiments was analyzed and obtained the uncertain degree is 1%, the result proves the reliability of the calibration experiment method.