Simultaneous measurement of atmospheric temperature, humidity, and aerosol extinction and backscatter coefficients by a combined vibrational–pure-rotational Raman lidar
Simultaneous measurement of atmospheric temperature, humidity, and aerosol extinction and backscatter coefficients by a combined vibrational–pure-rotational Raman lidar
复制标题
DOI：
10.1007/s00340-004-1631-2
复制
发表时间：
2004-09
期刊：
影响因子：
--
通讯作者：
I. Balin;I. Serikov;S. Bobrovnikov;V. Simeonov;B. Calpini;Y. Arshinov;H. E. van den Bergh
中科院分区：
文献类型：
--
作者：
I. Balin;I. Serikov;S. Bobrovnikov;V. Simeonov;B. Calpini;Y. Arshinov;H. E. van den Bergh
报道了一种用于同时测量大气温度、湿度、气溶胶消光系数和后向散射系数的纯旋转拉曼(PRR)激光雷达方法。PRR光谱的两个波长域的分离和弹性散射光的抑制是由双光栅多色仪实现的。来自致密云和固体目标的弹性后向散射实验证实了在所选的两个PRR区域的相应获取通道中对弹性光的高水平抑制。温度通道的校准是通过与实验验证的大气温度模型轮廓进行比较以及通过与无线电探空仪进行相互比较来完成的。获得了高垂直分辨率的夜间温度廓线，直到平流层下部。PRR温度分布与由振动拉曼通道获得的水蒸气混合比相结合被用来估计相对湿度。
Implementation of the pure-rotational Raman (PRR) lidar method for simultaneous measurement of atmospheric temperature, humidity, and aerosol extinction and backscatter coefficients is reported. The isolation of two wavelength domains of the PRR spectrum and the suppression of the elastically scattered light is carried out by a double-grating polychromator. Experiments involving elastic backscatter from dense clouds and a solid target confirm the high level of suppression of the elastic light in the corresponding acquisition channels of the two selected PRR domains. Calibration of the temperature channel was done both by comparison with an experimentally verified atmospheric temperature model profile and by inter-comparison with radiosondes. Night-time temperature profiles with high vertical resolution were obtained up to the lower stratosphere. The PRR temperature profile combined with the water vapor mixing ratio obtained from the ro-vibrational Raman channel is used to estimate the relative humidity.