摘要
利用几种不同空间位置空间天气观测数据对2006年12月系列太阳耀斑近地空间天气效应进行多方位分析,结果表明,该系列耀斑都伴随不同程度日冕物质抛射CME和高速太阳风,首轮耀斑产生超过600 km/s高速太阳风,12月6日通过L1点并持续到12月12日,12月14日次轮耀斑产生900 km/s太阳风高速流,该股高速太阳风引发12月15日地磁场特大磁暴。ACE数据显示,12月6、14、15日IMF南向分量长时间超过5 nT,14～15日有4 h以上超过10 nT,NOAA SEC发布的全球地磁综合KP指数15日超过8。磁暴期间华南地区30 min平均TEC最大值波动幅度达到10TECU或20%,表明发生了较大电离层暴。
An overview analysis of geospace response was performed here to great solar flares in Dec., 2006. There are total 7 class in-site space weather observation data were used. The results show that there were CMEs and high speed solar wind along with the flares. The first round flares on Dec.5＆Dec.6 produced a high speed solar wind more than 600km/s pass through L1 lasting toDec.12. The second round flares on Dec.13＆Dec.14 accelerates the solar wind up to 900km/s on Dec.14 and this high speed solar wind exploded the earth magnetic field to cause a EMF severe storm with more than 8 estimated global Kp index published by NOAA SEC. There were 2 strong SPEs occurred at geosynchronous orbit. Among 4 X class flares, Dec.5 X9 and Dec.6 X6 and Dec.14 X1 flare made less influence to China because of its occurring time not falling in LST06：00-18：00. But unfortunately, Dec.13 X3 flare at LST10：40 encountered severe effect to MF and HF communication all over our country. The 30 minutes-mean maximum TEC surged 5TECU or 20% of its range during EMF storms between Dec.6 and Dec.25, this shows that there have been ionosphere storms happening while EMF storms.
出处
《华南地震》
2007年第3期69-78,共10页
South China Journal of Seismology
