Please wait a minute...
E-mail Alert Rss
 
物探与化探  1992, Vol. 16 Issue (5): 365-369    
  论文 本期目录 | 过刊浏览 | 高级检索 |
地磁总强度梯度的计算与分析
安振昌
中国科学院地球物理研究所
CALCULATION AND ANALYSIS OF THE GRADIENT OF THE TOTAL GEOMAGNETIC INTENSITY
An Zhenchang
Institute of Geophysics, Academia Sinica
全文: PDF(319 KB)  
输出: BibTeX | EndNote (RIS)      
摘要 

不仅要知道地磁场的分布规律,而且要知道地磁场梯度的分布规律。本上根据地磁场的高斯理论和地磁场的球谐模型,计算出中国及其邻近地区地磁总强度的水平梯度(南北方向和东西方向)和垂直梯度,绘制出相应的等值线图,并分析了总强度梯度的分布规律。地磁总强度的水平梯度和垂直梯度,主要随纬度变化,与经度关系不大。值得注意的是在我国的中心地区,地磁总强度的水平梯度值最大。

服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
Abstract

We should know not only the distribution pattern of the geomagnetic field but also the distribution pattern of the geomagnetic field gradient. Based on the Gauss theory and the spherical harmonic model of the geomagnetic field, this paper has calculated the horizontal gradient (in SN and EW directi ons) and vertical gradient of the total geomagnetic intensity for China and its neighboring areas, drawn the corresponding contour map and analysed the distribution pattern of the total intensity gradient.The horizontal gradient and vertical gradient of the total geomagnetic intensity vary mainly with the latitude and have little to do with the longitude. It is worth noticing that the horizontal gradient value of the total geomagnetic intensity is highest in the central part of China.

     出版日期: 1992-10-24
引用本文:   
安振昌. 地磁总强度梯度的计算与分析[J]. 物探与化探, 1992, 16(5): 365-369.
An Zhenchang. CALCULATION AND ANALYSIS OF THE GRADIENT OF THE TOTAL GEOMAGNETIC INTENSITY. Geophysical and Geochemical Exploration, 1992, 16(5): 365-369.
链接本文:  
http://www.wutanyuhuatan.com/CN/      或      http://www.wutanyuhuatan.com/CN/Y1992/V16/I5/365

[1] flarraclough, D. R., and D. J. Iicrridqe, IGRF 1985: grid-point values and charts, IAGA Bulletin No.52,1986.
[2] 安振昌,徐元芳,王月华,1950-1980年中国地区地磁场模型的建立与分析,地球物理学报,Vol. 39, Vol.5, 1991.
[3] Haincs,G.V., Regional rnanrtic field modelling: A review, J. GeornaR. Gcoclcctr., 92, 1001-1018,1990.
[4] flarraclough, D. R., IGRI the fourth generation, Phys. Earth Planet. Inter., 48, 279-292, 1987.
[5] Barraclouqh, D. R., Spherical harmonic models of the qcoma,netic field, BGS Geomagnetic Bulletin,Vol. 8, 1978.

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
京ICP备05055290号-3
版权所有 © 2017《物探与化探》编辑部
通讯地址:北京市学院路29号航遥中心 邮编:100083
电话:010-62060192;62060193 E-mail:whtbjb@sina.com