Sensor system for Greenhouse Gas Observing Satellite (GOSAT)
Sensor system for Greenhouse Gas Observing Satellite (GOSAT)
复制标题
温室气体观测卫星（GOSAT）传感器系统
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
K. Kondo
中科院分区：
文献类型：
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作者：
T. Hamazaki;A. Kuze;K. Kondo
全球变暖已经成为人类面临的一个非常严重的问题。1997年，《京都议定书》在《联合国气候变化框架公约》（COP3）第三次缔约方会议上通过，规定发达国家必须在1990年将二氧化碳排放量减少其总排放量的6%至8%，并在2008年至2012年之间的某个时候实现这一目标。温室气体观测卫星（GOSAT）旨在从轨道上监测二氧化碳（CO2）的全球分布。GOSAT是日本宇宙航空研究开发机构（JAXA）、日本环境省（MOE）和国立环境研究所（NIES）的联合项目。JAXA负责卫星和仪器的开发，MOE参与仪器的开发，NIES负责卫星数据的检索。这颗卫星计划于2008年发射。为了检测边界层的CO2变化，研究了柱密度测量技术和去除云和气溶胶污染的检索算法。GOSAT的主要任务传感器是一个具有高通量、光谱分辨率和宽光谱覆盖的傅立叶变换光谱仪和一个附加在卫星上的云气溶胶探测成像仪。介绍了GOSAT的任务传感器系统，并在样机上进行了性能验证。
Global warming has become a very serious issue for human beings. In 1997, the Kyoto Protocol was adopted at the Third Session of the Conference of the Parties to the United Nations Framework Convention on Climate Change (COP3), making it mandatory for developed nations to reduce carbon dioxide emissions by six (6) to eight (8) per cent of their total emissions in 1990, and to meet this goal sometime between 2008 and 2012. The Greenhouse gases Observing SATellite (GOSAT) is design to monitor the global distribution of carbon dioxide (CO2) from orbit. GOSAT is a joint project of Japan Aerospace Exploration Agency (JAXA), the Ministry of Environment (MOE), and the National Institute for Environmental Studies (NIES). JAXA is responsible for the satellite and instrument development, MOE is involved in the instrument development, and NIES is responsible for the satellite data retrieval. The satellite is scheduled to be launched in 2008. In order to detect the CO2 variation of boundary layers, both the technique to measure the column density and the retrieval algorithm to remove cloud and aerosol contamination are investigated. Main mission sensor of the GOSAT is a Fourier Transform Spectrometer with high optical throughput, spectral resolution and wide spectral coverage, and a cloud-aerosol detecting imager attached to the satellite. The paper presents the mission sensor system of the GOSAT together with the results of performance demonstration with proto-type instrument aboard an aircraft.