从极区的开放磁力线区域进入地球大气的能量沉降粒子对地球气候系统的影响是目前全球气候变化研究的前沿热点。本项目基于卫星的能量粒子全球探测资料和臭氧全球观测资料，分析年际尺度上高纬地区臭氧含量损耗对极区能量粒子沉降的响应和两者之间的量化关联关系；根据已有的离子化学反应理论和实测数据的关联规律，对大气化学模式进行数据同化及修正；根据已有的极端空间天气事件研究和化学－气候模式，结合得到的数据同化模式，评估极端空间天气事件中极区能量粒子沉降对高纬地区臭氧含量的影响及其对极区气温带来的变化。

The impact of the energetic precipitation particles from the open magnetospheric field region on the climate system of the Earth is an area of current scientific focus that links to the global climate change. Being based on energetic particle detections and satellite global ozone observations, this project is to analyse interannual high latitude ozone depletion corresponding to energetic particle precipitation (EPP) in the polar region and the quantitative correlation between them. Applying the specific ion chemical reaction theory and the quantitative correlation of the observations, the project is to do data assimilation of atmospheric chemistry model which describes how EPP affects ozone content in the polar region. According to the investigation of extreme space weather events and chemistry-climate models, applying the data assimilation model, the project is to estimate the EPP's effect on high latitude ozone content during severe space weather storm days and the surface temperature variations in the polar region.