基于O_(2)分子1.27μm气辉反演临近空间温度廓线的新方法  

new method for retrieving the near-space temperature profile based on the 1.27μm O_(2)airglow

作　　者：王道琦 王后茂 胡向瑞 何微微 李发泉 武魁军 WANG Dao-Qi;WANG Hou-Mao;HU Xiang-Rui;HE Wei-Wei;LI Fa-Quan;WU Kui-Jun(School of Physics and Electronic Information,Yantai University,Yantai 264005,China;National Space Science Center,Chinese Academy of Sciences,Beijing 100190,China;Innovation Academy for Precision Measurement Science and Technology)

机构地区：[1]烟台大学物理与电子信息学院,山东烟台264005 [2]中国科学院国家空间科学中心,北京100190 [3]中国科学院精密测量科学与技术创新研究院,湖北武汉430071

出　　处：《红外与毫米波学报》2024年第2期215-225,共11页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金项目(62305283,41975039,41704178);山东省高校青年创新技术项目(2021KJ008);山东省自然科学基金项目(ZR2021QD088)资助;烟台大学研究生科研创新基金项目(GGIFYTU2313)。

摘　　要：1.27μm波段O_(2)(a^(1)Δg)气辉的辐射强度高、自吸收效应弱,是反演临近空间大气温度的理想目标源。基于O_(2)分子气辉光谱理论以及“剥洋葱”算法,利用扫描成像大气吸收光谱仪(SCIAMACHY)的近红外临边观测数据,成功反演50~100 km区域的大气温度廓线。与SABER、ACE-FTS及激光雷达的观测结果对比表明,在55~85 km的切线高度范围内温度测量误差优于±10 K,而在55 km以下与85 km以上空间区域,由于受到自吸收效应、大气散射以及OH气辉的光谱污染等干扰,温度反演结果出现显著偏差。The high radiation intensity and weak self-absorption effect of the O_(2)(a^(1)Δg)airglow in the 1.27μm band make it an ideal target source for retrieval of the atmospheric temperature in the near-space.Based on the theory of O_(2)airglow spectral and the"onion-peeling"algorithm,the near-infrared limb-viewing data of the SCanning Imaging Absorption SpectroMeter for Atmospheric CHartographY(SCIAMACHY)were successfully used to retrieve the atmospheric temperature profiles in the range of 50-100 km.Comparison with SABER,ACE-FTS and LIDAR observations shows that the temperature measurement error is better than±10 K in the tangential altitude of 55-85 km.However,in the space region below 55 km and above 85 km,the temperature retrieval results show significant bias due to the influences of self-absorption effects,atmospheric scattering,and spectral contamination from OH airglow.

关 键 词：临近空间 O_(2)(a^(1)Δg)气辉 临边观测 剥洋葱算法 温度反演 

分 类 号：P407.6[天文地球—大气科学及气象学]