兰州台榆中站中高层风温激光雷达技术与初步观测结果  

Lidar Technology and Preliminary Observation Results of Wind Temperature in the Middle and Upper Atmosphere at Lanzhou Yuzhong Station

作　　者：汪为 程学武 刘林美 夏媛 王积勤 黄忠伟[3] 史晋森[3] 李发泉 WANG Wei;CHENG Xue-wu;LIU Lin-mei;XIA Yuan;WANG Ji-qin;HUANG Zhong-wei;SHI Jin-sen;LI Fa-quan(State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430071;Nanjing Xiaozhuang University,Nanjing 211171;Lanzhou University,Lanzhou 730030;University of Chinese Academy of Sciences,Beijing 100049)

机构地区：[1]中国科学院精密测量科学与技术创新研究院波谱与原子分子物理国家重点实验室,武汉430071 [2]南京晓庄学院,南京211171 [3]兰州大学,兰州730030 [4]中国科学院大学,北京100049

出　　处：《导航与控制》2022年第5期250-257,249,共9页Navigation and Control

基　　金：科技部重点研发计划(编号:2022YFC2807201);国家重大科研仪器研制项目(编号:41827801);国家重大科技基础设施。

摘　　要：为提升我国中高层大气的三维监测能力,在子午工程二期“井”字形重要节点——兰州台榆中站,完成了中高层风温激光雷达的建设。本激光雷达融合了瑞利散射和钠层共振荧光两种工作机制,并采用了原子饱和吸收激光频率锁定、超窄带原子滤光、激光三频率自动切换等技术,实现了兰州上空25km~80km中层大气密度、80km~110km钠层原子数密度、温度和风场的同时探测。To further improve the three-dimensional monitoring capability of our country’s middle and upper atmosphere,the construction and observation of a lidar platform is conducted for the first time at an important node(E104.13°,N35.95°,Yuzhong,Lanzhou)of the“well”shape for the second phase of the Meridian project in China.Two detection mechanisms,Rayleigh scattering and Na layer fluorescence scattering are integrated in the lidar platform.In addition,these techniques such as atomic saturation absorption laser frequency locking,ultra-narrowband atomic filtering,laser three-frequency switching and other technologies are employed,and simultaneous detection of 25km~80km middle atmosphere density,80km~110km Na layer atomic number density,temperature and wind field above Lanzhou has been realized.

关 键 词：激光雷达 中高层大气 风场 温度 大气观测 

分 类 号：P412.25[天文地球—大气科学及气象学]