摘要
通过不同K指数的磁暴对辽宁省磁测点总强度通化值的影响,发现在8个地磁测点,不但干扰幅度不一洋,而且以沈阳台为基准点做的通化值不能完全消除外空场的干扰。磁静日通化值一般不超过1.6nT,而磁暴日通化值可达4.0nT左右。不论磁静日或磁暴日,标准偏差随通化台距离增加而增加,通过加权和五天磁静日方法可提高通化值的精度。
It has heen found that not only disturbance amplitude of 8 magnetic observation points is different, but also the normalized observations to take Shen Yiang station as the datum points can not completely eliminate interference of space field by means of the influence of magnetic storm with different K index on normalized observations of total in tensity for magnetic observation points in Lianing provce.
出处
《防灾减灾学报》
1993年第4期23-32,共10页
Journal of Disaster Prevention And Reduction
关键词
磁暴
磁静日
通化值
Magnetic storm, geomagnetic quiet day, normalized observations.
