2008-2012年拉萨地基与卫星臭氧总量观测比较  

A comparison of the ozone amount from ground-based with three satellite products over Lhasa during 2008-2012

作　　者：陈涛[1] 张勇[2] 卓嘎[1] 拉巴[1] 余佥贤[2] 

机构地区：[1]西藏高原大气环境科学研究所,西藏拉萨850000 [2]西藏自治区气象局,西藏拉萨850000

出　　处：《冰川冻土》2015年第2期395-400,共6页Journal of Glaciology and Geocryology

基　　金：国家自然科学基金项目(41065001);西藏自治区气象局高原遥感应用技术创新团队建设计划项目;中国气象局气象关键技术集成与应用项目(CMAGJ2013M51)资助

摘　　要：通过比较2008-2012年拉萨站地基观测臭氧总量与三种卫星反演产品,评估地基和卫星观测臭氧总量数据的质量信息.结果表明：地基与卫星臭氧总量绝对差为-10-15 DU,相对差为-4%-4%,日尺度相对差呈随机分布特征;TOSOM I算法反演的SCIAM ACHY臭氧总量更接近地基观测结果,DOAS算法反演OMI臭氧总量与地基观测结果差异最大.地基与卫星臭氧总量标准差存在季节性变化,夏季最大,冬季最小;云的影响会加剧地基与卫星臭氧总量差异,以SCIAMACHY产品最为显著.In this paper,the information of ozone amounts derived from ground-based and space-based observations are investigated through a comparison of the ozone amounts from ground-based and three satellite products over Lhasa during 2008-2012. It is found that the absolute difference of ozone amounts betw een ground and space-based observations varies from-10 to 15 DU,while the relative difference varies from-4% to 4%,fitting the normal distribution of 0. 05 significance. Compared with the ground-based observation,the precision of SCIAMACHY（ TOSOMI） ozone amount is the best and the precision of OMI（ DOAS） ozone amount is the worst. The standard deviation of ozone amount betw een ground and space-based observations exists obviously seasonal variation,while the deviation is the largest in summer and smallest in winter. The data discrepancy betw een ground-based and space-based ozone amounts increases with cloudy impact,especially for the ozone amount from SCIAMACHY（ TOSOMI）.

关 键 词：拉萨 臭氧总量 地基-卫星观测 

分 类 号：P402[天文地球—大气物理学与大气环境]