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地磁日变不同时段特征差异及对地磁日变改正的影响
李兴康1,2,3,4(), 付永涛1,2,4,5(), 周章国1,2,4, 杨安1,2,4
Differences in the characteristics of geomagnetic diurnal variation in different periods and their influence on correction of geomagnetic diurnal variation
LI Xing-Kang1,2,3,4(), FU Yong-Tao1,2,4,5(), ZHOU Zhang-Guo1,2,4, YANG An1,2,4

图1. 欧洲3个台站位置(正方形:CLF台站;菱形:BFO台站;圆形:FUR台站)

Fig.1. Three stations in Europe (square: CLF station; diamond: BFO station; circle: FUR Station)