在南极中山站综合臭氧探空、Brewer的月光及（SZA<=84°）观测，研究UV-可见光波段的SAOZ光谱仪曙暮天顶散射光反演平流层臭氧，重点研究极夜和接近极夜期间（4-8月）期间SAOZ反演的平流层臭氧。利用臭氧-气象探空数据，并结合辐射传输模式计算中山站地区的臭氧大气质量数（AMF），以提高SAOZ光谱仪反演臭氧总量的精度。也利用极夜和非极夜期间的臭氧探空资料研究Brewer光谱仪测值对平流层温度和AMF的依赖性。通过观测数据比较分析，确定SAOZ平流层臭氧测值的精度及误差分布特点，填补极夜和接近极夜期间因为Brewer 或卫星利用太阳UV波段辐射无法观测臭氧总量而造成的数据空白。项目研究期望为SAOZ在中山站长期观测建立基础，也为评估极地地区平流层臭氧长期变化提供全面、客观、准确数据。

Stratospheric ozone retrieved by the SAOZ UV-visible band twilight measurements at Chinese Antarctica Zhongshan station will be performed. The research will be archived by the ECC ozonesonde profiles and the Brewer focus moon or the FZ( solar zenith angle less than 84 degree) total ozone and the radiation model calculations, and those observations made during the period including polar night or near the polar nights (about from April to August ) and the correlative calculations will be weighted. The ozone Air Mass Factor (AMF), a parameter which is necessary for SAOZ vertical column ozone determination, will be calculated by the atmospheric radiation model with the in-situ profiles measured by ECC ozondesonde and radiosonde. The accuracy of the SAOZ stratospheric ozone data will be improved by the modeled AMF. The profiles will also be helpful to improve Brewer total ozone data partly depending on the stratospheric temperature and the ozone AMF. The precision and accuracy of SAOZ- retrieved stratospheric ozone data over Zhongshan will be approached by the inter-comparison analysis of several total ozone data source, however ,the stratospheric column ozone from SAOZ retrievals during the polar nights is unique data sources. This approaching is expected to improve the quality and homogeneity of SAOZ total ozone , especially for filling the previous total ozone data gap during the polar night or the adjacent periods at Zhongshan. These work is the basis of the long-term SAOZ ozone measurements at Zhongshan, and the assessment of long -term total ozone trends in the polar regions will be benefited by the comprehensive, objective and more accurate data supported by this project.