摘要
本文将磁暴过程作为地球磁场对太阳风的加卸载响应,计算分析了中国华北地区30个地磁台站1995-01—199603垂直分量Z的暴时场D8t(Z)加卸载响应比值fD(Z)的变化,发现fD(Z)的高值异常与其周围150km范围内发生的ML=5.4,5.6和6.6级的3个中强地震对应较好.同时还发现冀中南及冀鲁豫交界地区fD(Z)的高值异常与199608的罕见大暴雨、洪涝灾害有关,并进行了初步定性讨论.
In this paper, the geomagnetic storm process is considered as the load-unloading response of geomagnetic field to solar wind. The data of the vertical component Z of 30 magnetic stations in North China are used to anajyse the ratio fD(Z) of loadunloading response of storm time field Dst(Z). The anomalous fD(Z) are correlated with three moderate strong earthquakes of ML = 5.4, 5.6 and 6.6 which occurred sac150km away from the anomalous stations. Moreover, the zones of abnormal fD(Z)in the middle-south of Hebei, and the boundary of Hebei, Henan and Shandong are corresponded to the catastorm and flood disaster in August of 1996 in the same locations. And the result is discussed primitively.
出处
《空间科学学报》
CAS
CSCD
北大核心
1996年第S1期17-21,共5页
Chinese Journal of Space Science
关键词
太阳风
加卸载响应
地震
气象灾害
Solar wind, Load-unload response, Earthquake, Meteorological disaster