基于O2分子1.27μm气辉反演临近空间温度廓线的新方法OA北大核心CSTPCD
A new method for retrieving the near-space temperature profile based on the 1.27 μm O2 airglow
1.27 μm波段O2(a1∆g)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O2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 O2(a1∆g)airglow in the 1.27 μm band make it an ideal target source for retrieval of the atmospheric temperature in the near-space.Based on the theory of O2 airglow spectral and the"onion-peeling"algorithm,the near-infrared limb-viewing data of the SCanning Imaging Ab-sorption SpectroMeter for Atmospheric CHartographY(SCIAMACHY)were successfully used to retrieve the atmo-spheric 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 influ-ences of self-absorption effects,atmospheric scattering,and spectral contamination from OH airglow.
王道琦;王后茂;胡向瑞;何微微;李发泉;武魁军
烟台大学 物理与电子信息学院,山东 烟台 264005中国科学院国家空间科学中心,北京 100190中国科学院精密测量科学与技术创新研究院,湖北 武汉 430071
大气科学
临近空间O2(a1∆g)气辉临边观测剥洋葱算法温度反演
near-spaceO2(a1∆g)airglowlimb-viewingonion peeling algorithmtemperature retrieval
《红外与毫米波学报》 2024 (002)
215-225 / 11
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)Supported by the National Natural Science Foundation of China(62305283,41975039,41704178),the Youth Innovation Tech-nology Project of Higher School in Shandong Province(2021KJ008),the Natural Science Foundation of Shandong Province of China(ZR2021QD088),the Graduate Innovation Foundation of Yantai University(GGIFYTU2313)
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