Relative-humidity profiling in the troposphere with a Raman lidar.
Relative-humidity profiling in the troposphere with a Raman lidar.
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DOI：
10.1364/ao.41.006451
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发表时间：
2002-10
期刊：
影响因子：
1.9
通讯作者：
I. Mattis;A. Ansmann;D. Althausen;Volker Jaenisch;U. Wandinger;D. Müller;Y. Arshinov;S. Bobrovnikov;I. Serikov
中科院分区：
文献类型：
--
作者：
I. Mattis;A. Ansmann;D. Althausen;Volker Jaenisch;U. Wandinger;D. Müller;Y. Arshinov;S. Bobrovnikov;I. Serikov
我们描述了一种基于拉曼激光雷达的方法来获取空气相对湿度的轮廓。为此，我们在一台仪器中结合了拉曼激光雷达技术，用于分析水蒸气和温度。这种方法使我们能够获得，第一次我们的知识，通过整个对流层的相对湿度垂直廓线完全从拉曼激光雷达数据。介绍了水汽混合比、温度和相对湿度的测定方法，以及由系统误差和信号噪声引起的不确定度。激光雷达导出的配置文件进行了比较与无线电探空仪测量的配置文件。无线电探空仪观测也被用来校准的拉曼激光雷达。激光雷达测量的相对湿度廓线与无线电探空仪测量的相对湿度廓线的接近一致性表明了这种新方法的潜力。
We describe a Raman-lidar-based approach to acquiring profiles of the relative humidity of air. For this purpose we combined in one instrument the Raman-lidar techniques that are used for the profiling of water vapor and temperature. This approach enabled us to acquire, for the first time to our knowledge, vertical profiles of relative humidity through the entire troposphere exclusively from Raman-lidar data. The methods applied to determining the water-vapor mixing ratio, temperature, and relative humidity and the corresponding uncertainties caused by systematic errors and signal noise are presented. The lidar-derived profiles are compared with profiles measured with radiosondes. Radiosonde observations are also used to calibrate the Raman lidar. Close agreement of the profiles of relative humidity measured with lidar and those measured with radiosonde demonstrates the potential of this novel approach.