Ozone and water-vapor measurements by Raman lidar in the planetary boundary layer: error sources and field measurements.
Ozone and water-vapor measurements by Raman lidar in the planetary boundary layer: error sources and field measurements.
复制标题
DOI：
10.1364/ao.40.002985
复制
发表时间：
2013-08
期刊：
影响因子：
1.9
通讯作者：
Benoît Lazzarotto;Max Frioud;G. Larchevêque;V. Mitev;P. Quaglia;V. Simeonov;A. M. Thompson;H. Bergh;B. Calpini
中科院分区：
文献类型：
--
作者：
Benoît Lazzarotto;Max Frioud;G. Larchevêque;V. Mitev;P. Quaglia;V. Simeonov;A. M. Thompson;H. Bergh;B. Calpini
研制了一种用于低空测量对流层臭氧和水汽的激光雷达。激光雷达利用大气中氮、氧和水蒸气的紫外光束的拉曼散射来反演臭氧和水蒸气的垂直剖面。通过数值模拟，我们调查的方法对大气和设备扰动的敏感性。详细研究了大气气溶胶在行星边界层中的光学效应、臭氧对水汽反演的干扰、统计误差、拉曼位移通道间的光学串扰、拉曼位移信号中的弹性后向散射信号与后脉冲效应间的光学串扰。在支持本模型研究的主要结论，臭氧和水蒸气的时间序列在瑞士联邦技术研究所在洛桑和在克里特岛的实地活动。它们进行了比较点监视器和气球探空测量白天和夜间的条件。
A new lidar instrument has been developed to measure tropospheric ozone and water vapor at low altitude. The lidar uses Raman scattering of an UV beam from atmospheric nitrogen, oxygen, and water vapor to retrieve ozone and water-vapor vertical profiles. By numerical simulation we investigate the sensitivity of the method to both atmospheric and device perturbations. The aerosol optical effect in the planetary boundary layer, ozone interference in water-vapor retrieval, statistical error, optical cross talk between Raman-shifted channels, and optical cross talk between an elastically backscattered signal in Raman-shifted signals and an afterpulse effect are studied in detail. In support of the main conclusions of this model study, time series of ozone and water vapor obtained at the Swiss Federal Institute of Technology in Lausanne and during a field campaign in Crete are presented. They are compared with point monitor and balloon sounding measurements for daytime and nighttime conditions.