Local Geomagnetic index (LDi) for 1996 at different locations

This local geomagnetic index indicates the perturbation of the geomagnetic field (horizontal component) for several locations. It is a measure of the external to the Earth irregular geomagnetic variations. It is obtained after removing a baseline and the daily regular variation from observed measurements.
See also Files description.

该局地地磁指数表征了多个观测站点处地磁场（水平分量）的扰动情况。其可用于量化地球外部的不规则地磁变化，通过从观测实测数据中扣除基线值与每日常规变化分量后计算得到。详细内容请参见文件描述。