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Annual variation of the magnetic elements

 

作者: R. P. W. Lewis,   D. H. McIntosh,   R. A. Watson,  

 

期刊: Journal of Geophysical Research  （WILEY Available online 1955）
卷期: Volume 60, issue 1  

页码: 71-74

 

ISSN:0148-0227

 

年代: 1955

 

DOI:10.1029/JZ060i001p00071

 

数据来源: WILEY

 

摘要:

Annual variations of the horizontal intensity (Hforce) were computed for a number of stations, using values for magnetically quiet days where available. These are expressed in terms of Fourier components. Differences found between one pair of stations suggest that the annual variation arises from local as well as world‐wide influence

 

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