太阳质子事件与大气臭氧扰动

本文利用统计分析方法分析了1960至1982年间1级以上的太阳质子事件与四个不同地理纬度大气臭氧含量的相互关系.分析结果表明,对于中、低纬度地区,1、2级太阳质子事件基本上不影响大气臭氧含量,只有3、4级的大事件才对臭氧含量产生扰动,而且具有明显的纬度效应;对于极区,1级以上的太阳质子事件就能对臭氧含量产生影响,随着质子事件级别的增高,对臭氧含量的扰动也加大.通常,太阳质子事件发生的当天,臭氧含量开始下降,在第4天下降达最小值,整个扰动持续数日.由太阳质子事件扰动大气臭氧明显的纬度效应证明了太阳质子事件的确是使大气臭氧含量变化的重要因素.此外,分析结果表明,冬天出现的太阳质子事件对臭氧的扰动要大于夏天质子事件对臭氧的扰动.这些结果给出了太阳质子事件影响大气臭氧的一个总轮廓,而且从理论上得到了较好的解释. 

The Solar Proton Events and the Disturbances of Atmospheric Ozone

The relationship between the solar proton events above importance 1 and the atmospheric ozone content over four latitude regions from 1960 to 1982 is studied in this paper. The results show that the solar proton events of importance 1 and 2 have no influence O₃] appreciably over middle and low latitude regions. Only the solar proton events of importance 3 can influence O₃] significantly, and there is obvious latitude effect. The proton events above importance 1 can influence O₃] over the polar region. The disturbances of O₃] increase with the increase of importances of the proton events. Usually O₃] starts decreasing when solar proton events occur and the decrease lasts for several days. The minimum of the decrease occurs on the fourth day after the solar proton event. For reasons given above it is proved that the solar proton event is an important factor disturbing -O₃] . The disturbances of O₃] caused by the solar proton events in winter are more prominent than in summer. The results show the general influence of proton events on O₃] over different latitudes, and it can be well interpreted theoretically.