FY-3 satellite Ultraviolet Total Ozone Unit  

作　　者：WANG YongMei WANG YingJian WANG WeiHe ZHANG ZhongMou LU JianGong FU LiPing JIANG Fang CHEN Ji WANG JiHong GUAN FengJun HUANG FuXiang ZHANG XingYing 

机构地区：[1]Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, China [2]National Satellite Meteorological Center, Beijing 100081, China

出　　处：《Chinese Science Bulletin》2010年第1期84-89,共6页

摘　　要：FY-3 satellites are Chinese second-generation polar orbit meteorological satellite series. Ultraviolet Total Ozone Unit (TOU) is one of the main payloads on FY-3 satellite and the first instrument for daily global coverage of total ozone monitoring in China. The main purpose of TOU is to measure the Earth backscatter ultraviolet radiation for retrieving daily global map of atmospheric ozone. TOU will provide the important parameters for environmental monitoring, climate forecasting and global climate changing research. At present, the in-orbit testing of TOU has accomplished and won a consummation, and it will be delivered to National Satellite Meteorological Center for the operational phase of the project. In this paper we introduce the instrument of TOU and its measuring principle, in general. We also analyze the recent working status of the instrument, including the sensitivity, measuring precision of solar irradiance, diffuser degradation and wavelength drift. The inversion results show that TOU can provide good global ozone maps, and a comparison with the OMI total ozone product shows that their RMS deviation is about 5%. It is indicated that the satisfied global distribution of total ozone can be obtained through TOU observational data and self-developed inversion method.FY-3 satellites are Chinese second-generation polar orbit meteorological satellite series. Ultraviolet Total Ozone Unit （TOU） is one of the main payloads on FY-3 satellite and the first instrument for daily global coverage of total ozone monitoring in China. The main purpose of TOU is to measure the Earth backscatter ultraviolet radiation for retrieving daily global map of atmospheric ozone. TOU will provide the important parameters for environmental monitoring, climate forecasting and global climate changing research. At present, the in-orbit testing of TOU has accomplished and won a consummation, and it will be delivered to National Satellite Meteorological Center for the operational phase of the project. In this paper we introduce the instrument of TOU and its measuring principle, in general. We also analyze the recent working status of the instrument, including the sensitivity, measuring precision of solar irradiance, diffuser degradation and wavelength drift. The inversion results show that TOU can provide good global ozone maps, and a comparison with the OMI total ozone product shows that their RMS deviation is about 5%. It is indicated that the satisfied global distribution of total ozone can be obtained through TOU observational data and self-developed inversion method.

关 键 词：紫外线辐射 臭氧总量 卫星系列 国家卫星气象中心 全球气候变化 测量原理 反演方法 均方根误差 

分 类 号：P421.33[天文地球—大气科学及气象学] TS103.823[轻工技术与工程—纺织工程]