CAJ | 학술논문

利用中国区域内9个垂测站1976-1987年一个太阳活动周期的电离层暴时f_0F_2数据,统计分析了电离层暴事件的等级,以及不同等级的电离层暴随季节和地磁纬度的分布特征.研究发现,中小型电离层暴在春秋季发生的概率较大,不同季节的发生次数与地磁纬度具有明显的关系.利用STORM模型对电离层暴时f_0F_2和大型及特大型电离层暴时f_0F_2的预测值与月中值进行了比较.结果表明,除了冬季误差增大外,发生电离层暴时STORM模型能够有效地改善月中值模型.增加中国的暴时数据,并提高对冬季的暴时参数f_0F_2的预测是改善STORM模型的重要因素.建立合适的暴时指数来预测f_0F_2是未来研究的重点,
이용중국구역내9개수측참1976-1987년일개태양활동주기적전리층폭시f_0F_2수거,통계분석료전리층폭사건적등급,이급불동등급적전리층폭수계절화지자위도적분포특정.연구발현,중소형전리층폭재춘추계발생적개솔교대,불동계절적발생차수여지자위도구유명현적관계.이용STORM모형대전리층폭시f_0F_2화대형급특대형전리층폭시f_0F_2적예측치여월중치진행료비교.결과표명,제료동계오차증대외,발생전리층폭시STORM모형능구유효지개선월중치모형.증가중국적폭시수거,병제고대동계적폭시삼수f_0F_2적예측시개선STORM모형적중요인소.건립합괄적폭시지수래예측f_0F_2시미래연구적중점,
Based on the ionospheric f0F2 data from 9 ionosonde stations in China region during a solar activity cycle from 1976 to 1987, the level and the distribution characteristic of the ionospheric storms along seasonal bins and geomagnetic latitudes are statistically investigated. It is found that the small and medium level storms occur more frequently in spring and autumn and the frequencies in different seasonal bins have relationship with the geomagnetic latitudes. A comparison between the storm-time predicted f_0F_2 values and the monthly median ones shows that the median model can be improved effectively by the STORM model except in winter. It is important of adding Chinese storm-time data and enhancing the prediction accuracy in winter to improve the STORM model.And developing an appropriate storm-time index to predict f0F2 is a key point in the future.