利用单台地磁数据估算Ap和Kp指数的可行性分析
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
通过分析单台长期地磁场扰动幅度和地磁行星指数Ap和Kp关系,对1小时磁扰幅度r_H的日平均与Ap进行拟合,快速估算Ap指数。对3小时内r_H的平均与Kp进行对数拟合,估算Kp指数。采用肇庆地震台2003—2008年地磁H分量分钟值数据,估算行星Ap和Kp指数,与世界数据中心(WDC)给出的Ap和Kp指数进行统计分析。结果发现,根据上述方法,利用肇庆地震台地磁数据估算Ap和Kp指数,在一定误差范围内可行。
By analyzing the relationship between the disturbance amplitude of a single geomagnetic station s data and the geomagnetic planet indices of Ap and Kp for a long time,a fast and simple method for the Ap estimation on fitting the daily average of one hour disturbance amplitude of magnetic is presented.Based on the logarithmic fitting of the Kp and the average of r_(11)in three hours,we can get the estimating method of Kp index.According to the above mentioned methods,using the geomagnetic minutes data of H component from 2003—2008 of Zhaoqing station to estimate the planetary indices of Ap and Kp,and comparing with the Ap and Kp indices from the Word Data Center.Results show that,in accordance with the above method using the Zhaoqing geomagnetic data to estimate Ap and Kp indices is feasible in a certain error range.
引文
陈伯舫.地面S_q磁场的分析和场向电流[J].地震地磁观测与研究,1995,16(4) :18-21.
    陈健,刘江斌,张秀霞,等.地磁扰动事件的描述及处理[J].地震地磁观测与研究,2008,29(6) :45-49.
    徐文耀.地磁活动K指数值量算和确定方法的改进[J].西北地震学报,2005,27(SO):36-41.
    徐文耀.地磁活动指数的过去、现在和未来[J].地球物理学进展,2009,24(3) :830-841.
    徐文耀.地球电磁现象物理学[M].合肥:中国科学技术大学出版社,2009:307-347.
    杨马陵,刘昌谋,叶东华,王建格.FMI方法计算地磁K指数的初步研究[J].地震地磁观测与研究,2004,25(2) :55-61.
    Frans De Meyer.A modulation model for the solar and lunar daily geomagnetic variations[J].Earth Planets Space,2003,55:405-418.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心