解用明, 李守忠, 李玉春, 王宝坤, 武连祥. 河北省内近年地磁场年速率的变化[J]. 华北地震科学, 2000, 18(2): 62-65.
引用本文: 解用明, 李守忠, 李玉春, 王宝坤, 武连祥. 河北省内近年地磁场年速率的变化[J]. 华北地震科学, 2000, 18(2): 62-65.
Xie Yongming, Li Shouzhong, Li Yuchun, Wang Baokun, Wu Lianxiang. THE ANNUAL VELOCITY VARIATION OF GEOMAGNETIC FIELD WITHIN HEBEI PROVINCE IN RECENT YEARS[J]. North China Earthquake Sciences, 2000, 18(2): 62-65.
Citation: Xie Yongming, Li Shouzhong, Li Yuchun, Wang Baokun, Wu Lianxiang. THE ANNUAL VELOCITY VARIATION OF GEOMAGNETIC FIELD WITHIN HEBEI PROVINCE IN RECENT YEARS[J]. North China Earthquake Sciences, 2000, 18(2): 62-65.

河北省内近年地磁场年速率的变化

THE ANNUAL VELOCITY VARIATION OF GEOMAGNETIC FIELD WITHIN HEBEI PROVINCE IN RECENT YEARS

  • 摘要: 利用河北省内8个地磁台Z分量绝对值资料,分析了近年地磁场变化特征及规律。研究结果表明:①地磁场Z分量从七十年代开始以幂函数形式逐年上升,目前仍在上升中;②年速率有逐年增大到逐年减小的变化过程,1 993-1 994年达到峰值;③年速率在空间上的变化,有由东南往西北逐渐减小的趋势。

     

    Abstract: Based on the z component's absolute value data of 8 geomagnetic observatory in Hebei province,the characters and law of geomagnetic field variation in recent years are analyzed.The results show:1.the z component of geomagnetic field increased annually with power series from 1970s,and is increasing at present;2.The annual velocity experienced a process of from increasing annually to decreasing annually,and it reached the hump during 1993 1994;3.The annual velocity variation has a decreasing tendency from southeast to northwest in space.

     

/

返回文章
返回