摘要
本文利用NOAA空间环境服务中心提供的35个太阳质子耀斑和欧洲气象中心500百帕逐日高度场资料,统计分析了质子耀斑发生前后七天内500百帕高度场平均变高,得出太阳质子耀斑对大气环流的影响有二个峰值,初始响应在耀斑爆发后1—2天内,滞后响应后4—5天内,并存在季节性差异,即质子耀斑爆发后第一天是冬季强于夏季,而整个响应过程则是夏季强于冬季,北非—南欧—西南亚地区是对太阳质子耀斑响应的敏感地区。另外还对比分析了1989年3月6日的强耀斑事件,结果表明该质子耀斑的影响比35个质子耀斑的平均值大一个量级。
Thirty-five solar proton flares and 500 hPa height data from the NOAA Space Envi-ronment Service Center and the European Meteotrology Center are used to analyse 500 hPa mean height change 1 to 7 days after flares. The statistical results suggest that the effect of solar proton flares on atmospheric circulation has two peaks. The early effect seems to be 1-2 days and the late effect 4—5 days after flares; The winter season showed a stronger early response than does the summer, but the summer is the predominant season over the winter in the overall observed response; The maximum 24-hr circulation changes occur in the North Africa-South Europe-Southwest Asia area. In addition, the analysis of the March 6, 1989 flare event showed the effect of this an order stronger than the average of thirty-five flares.
出处
《南京大学学报（自然科学版）》
CAS
CSCD
1990年第4期730-740,共11页
Journal of Nanjing University（Natural Science）
基金
国家自然科学基金
关键词
大气环流
质子耀斑
太阳耀斑
solar proton flares
atmospheric circulation
