臭氧总量探测仪(TOU)与臭氧监测仪(OMI)和SBUV/2的交叉定标及其在环境中的应用  

Cross-Calibration of the Total Ozone Unit (TOU) with the Ozone Monitoring Instrument (OMI) and SBUV/2 for Environmental Applications

作　　者：王维和[1] Law rence E.Flynn 张兴赢[1] 王咏梅[3] 王英鉴[3] 江芳[3] 张艳[1] 黄富祥[1] 李晓静[1] 刘瑞霞[1] 郑照君 WeiYu 刘国扬 

机构地区：[1]国家卫星气象中心,中国气象局,北京100081 [2]美国国家海洋与大气管理局 [3]中国科学院空间科学与应用研究中心,北京100190 [4]地球资源技术公司 [5]航天恒星科技有限公司,北京100086

出　　处：《气象科技进展》2013年第4期97-107,共11页Advances in Meteorological Science and Technology

基　　金：国家自然科学基金资助项目(41175024)

摘　　要：基于臭氧监测仪(OMI)对FY-3A卫星臭氧总量探测仪(TOU)进行交叉定标,交叉定标的结果用于TOU全球臭氧总量的反演。OMI是搭载在美国国家航空和航天局的地球观测系统的Aura卫星上的一个仪器,将其Level 3臭氧总量产品作为辐射传输模式的输入,计算中低纬度太平洋上臭氧总量探测仪像元的辐亮度,通过回归过程计算TOU在轨辐亮度定标系数。结果显示,在轨交叉定标后,TOU反演的臭氧总量产品与OMI仪器基于TOMS-V8算法反演臭氧总量产品相比,相对偏差大约为3%,与地面观测站点测量的臭氧总量相比,相对偏差大约为了5%。TOU、太阳后向散射紫外辐射仪(SBUV/2)以及OMI反演的2010年1月份到2011年2月份期间臭氧总量的变化相当一致。Across-sensor calibration technique is developed and applied to improve upon the prelaunch radiance calibration and characterization for the Total Ozone Unit(TOU) onboard the FengYun-3A satellite.The Level 3 products from the National Aeronautics and Space Administration Ozone Monitoring Instrument(OMI) onboard the Earth Observing System Aura are used as input to a radiative transfer model to predict the TOU radiances and characterize the biases for the measurements over the Pacific Ocean in low-and midlatitudes.The coefficients are derived from a regression algorithm to adjust the TOU radiances.It is shown that,after the measurement bias correction,the biases between the retrieved total column ozone products from the TOU with those from the OMI Total Ozone Mapping Spectrometer(TOMS)-Version 8 products and those from a set of ground-based stationmeasurements are 3%and 5%,respectively.The variations in the estimated total ozone amounts from the TOU are consistent with those derived from Solar Backscatter Ultraviolet Radiometer instruments and OMI for a period from January 2010 to February 2011.

关 键 词：定标 臭氧 遥感 紫外辐射测量 

分 类 号：P414[天文地球—大气科学及气象学]