摘要
为有效地控制温室效应和气候剧变,准确可靠地监测CO2气体的变化就变得十分重要。拉曼雷达测量大气中CO2气体含量是一种技术先进的可靠方法。介绍了利用气体的拉曼散射效应来测量CO2含量分布的拉曼激光雷达,分析了拉曼雷达的基本原理,设计了具体的实验检测系统,介绍了实验系统各工作件参数情况。对拉曼雷达的回波信号的反演方法进行了具体阐述,初步取得了大气中CO2气体含量分布规律,合肥地区的二氧化碳气体含量大约在350-400 ppmv范围内波动。
Detecting the trace gas CO2 reliably is becoming more and more important due to greenhouse effect and climate changing. Using the Raman lidar for monitoring the atmospheric CO2 concentration is an advanced technique. The Raman lidar system based on stimulated Raman scattering （SRS） process is presented, and the basic theory for Raman lidar is introduced. Moreover, the experimental detecting system and its specifications are presented. The retrievable method of Raman lidar backscattered signal is expounded and the law of CO2 density profile is obtained. The concentration for atmospheric CO2 varies about between 350 ppmv and 400 ppmv.
出处
《量子电子学报》
CAS
CSCD
北大核心
2006年第3期355-359,共5页
Chinese Journal of Quantum Electronics
基金
国家863计划13主题2002AA135030项目资助
