相对论电子沉降与极区臭氧损耗事件的关联关系研究

地磁活动期间，来自太阳风和地球外辐射带的电子会被磁层中的波加速并受到地磁场调制沿磁力线运动进入极盖区大气，形成相对论性电子沉降事件，并对极区的中层大气产生深刻的影响，这一方向的研究目前是太阳活动与地球气候变化关联研究中的前沿热点。本项目拟采用星载高能电子探测数据和臭氧观测数据开展极区相对论性电子沉降事件与臭氧损耗事件的短期观测事例分析和长期的气候学特征研究；采用WACCM等气候模式，模拟长寿命相对论电子沉降事件对于中层大气中奇氮物质和臭氧含量的影响以及评估其对极区地表气温带来的变化。

During the geomagnetic activities, the electron will be accelerated by the wave in the magnetosphere and be configured by the geomagnetic field to follow the field line and penetrate into the polar atmosphere, namely relativistic electron precipitation events (REPE) which bring significant impacts on the middle atmosphere in the polar region, the studies in this area are the current scientific focus on the links between the solar activities and the earth's climate changes. This project is to do the case study and the climatological characteristic research on the correlation between the relativistic electron precipitation events and the ozone depletions based on the spaceborne measurements of energetic electron and ozone; utilizing the WACCM to model the long-lived REPE's impacts on the odd nitrogens and ozone content in the middle atmosphere and assess the surface temperature changes in the polar region.