| 星载全球大气波动成像仪研究 |
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| 引用本文： | 钱浩俊,胡雄,涂翠.星载全球大气波动成像仪研究[J].空间科学学报,2012,32(3):362-367. |
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| 作者姓名： | 钱浩俊 胡雄 涂翠 |
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| 作者单位： | 1. 中国科学院空间科学与应用研究中心,北京100190／中国科学院研究生院,北京100049
2. 中国科学院空间科学与应用研究中心,北京,100190 |
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| 基金项目： | 中国科学院创新方向性项目资助 |
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| 摘 要： | 在卫星上对中间层顶区域的气辉辐射成像观测,对于全球大气波动的监测和研究具有重要的意义.利用TDICCD对O2A（0-0）气辉进行成像观测,计算了曝光积分时间、信噪比和能达到的最高空间分辨率,分析了地球自转对空间分辨率的影响,在此基础上提出一种星载全球大气波动成像仪方案,该方案可以观测垂直波长大于10 km的大气波动,最高水平分辨率可以达到0.33 km.
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| 关 键 词： | O2A（0-0）气辉 全球大气波动成像仪 中间层顶区域 大气重力波 |
Research on Space-based Global Atmospheric Wave Imager |
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| QIAN Haojun,HU Xiong,TU Cui.Research on Space-based Global Atmospheric Wave Imager[J].Chinese Journal of Space Science,2012,32(3):362-367. |
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| Authors: | QIAN Haojun HU Xiong TU Cui |
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| Institution: | 1,2) 1(Center for Space Science and Applied Research,Chinese Academy of Sciences,Beijing 100190) 2(Graduate University of Chinese Academy of Sciences,Beijing 100049) |
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| Abstract: | Space-based airglow imaging observation is significant for monitoring global atmospheric waves in the mesopause region.The Time Delay and Integration Charge Coupled Device（TDICCD） is used to capture images of O2A（0-0） airglow.The required exposure time and the signal-to-noise ratio are calculated,and the latitude-dependent space resolutions are analyzed with a modulation transfer function.Due to the Earth’s rotation,for a circular orbit with a height of 700 km and an incline angle of 73°,the spatial resolution increases with in creasing latitudes,which is 5.7 km near the equator.Based on the above analysis,the instrument’s block diagram is also given.Results indicate that the space-based airglow imager can observe atmospheric waves with a vertical wavelength of approximately 10 km or longer and with the best horizontal spatial resolution of 0.33 km. |
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| Keywords: | O2 airglow Global atmospheric waves imager Mesopause Atmospheric gravity waves |
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