火星O_2(a~1Δ_g)气辉高光谱分辨辐射传输特性研究
Hyperspectral-resolved radiative transmission theory of O_2(a~1Δ_g)dayglow on Mars
查看参考文献41篇
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文摘
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1.27μm波段的氧分子近红外气辉是火星大气最重要的气辉辐射之一,该气辉高光谱分辨辐射传输模型的建立对于研制火星探测载荷,反演火星大气的风场温度场与臭氧浓度,以及研究火星空间物理,有重要的科学价值与工程意义.在研究火星大气O_2(a~1Δ_g)气辉光化学反应模型的基础上,提出了O_2(a~1Δ_g)气辉体辐射率的计算方法,并建立了火星大气气辉辐射传输理论;通过与用于研究火星大气特征的光谱学探测仪(Spectroscopy Spectrograph for the Investigation of Characteristics of the Atmosphere of Mars,SPICAM)的实测数据进行对比,验证了所建立的火星O_2(a~1Δ_g)气辉高光谱分辨辐射传输模型的准确性;针对火星与地球大气的O_2(a~1Δ_g)气辉,在体辐射率、自吸收效应,以及临边辐射光谱特性三个方面进行了系统深入的比较,对比结果表明,火星大气由于密度低、氧气丰度小,其自吸收效应可以忽略不计,但其O_2(a~1Δ_g)气辉辐射强度与地球大气相当,可以用于火星大气的风场温度场与臭氧浓度的探测与反演. |
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其他语种文摘
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The near-infrared O_2 dayglow in the 1.27μm band is one of the most important dayglow emission in the Martian atmosphere.The establishment of this hyperspectral-resolved radiative transmission model has important scientific value and engineering significance for the development of Mars detection load,the inversion of Mars atmospheric wind field temperature field and ozone concentration,and the study of Mars space physics.Based on the chemical reaction model of Martian atmospheric O_2(a~1Δ_g)dayglow,the calculation method of the O_2(a~1Δ_g)dayglow radiance is proposed and the transmission theory of Martian atmospheric dayglow radiation is established in this paper.The accuracy of the established Mars O_2(a~1Δ_g)dayglow hyperspectral radiative transfer model was verified by comparing with the measured data of the Spectroscopy Spectrograph for the Investigation of Characteristics of the Atmosphere of Mars(SPICAM).The O_2(a~1Δ_g)dayglow of Mars and the Earth's atmosphere are systematically and deeply compared in three aspects:volume emissivity, self-absorption effect and limb radiation spectral characteristics.The comparison results show that the self-absorption effect of Martian atmosphere is negligible due to its low density and low oxygen abundance,but its O_2(a~1Δ_g)dayglow radiation intensity is comparable to that of the Earth's atmosphere,so it can be used to detect and retrieve the wind field,temperature field and ozone concentration of Martian atmosphere. |
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来源
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地球物理学报
,2023,66(5):1864-1875 【核心库】
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DOI
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10.6038/cjg2022Q0592
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关键词
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临近空间
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O_2(a~1Δ_g)←O_2(X~3Σ_g~-)波段
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气辉
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体辐射率
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临边辐射强度
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地址
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1.
烟台大学物理与电子信息学院, 山东, 烟台, 264005
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中国科学院国家空间科学中心, 北京, 100190
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中国科学院精密测量科学与技术创新研究院, 武汉, 430071
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中国科学院西安光学精密机械研究所, 西安, 710119
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0001-5733 |
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学科
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大气科学(气象学) |
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基金
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国家自然科学基金
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山东省自然科学基金
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山东省高等学校"青创科技支持计划"
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文献收藏号
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CSCD:7462087
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