Yacob, A. ; Bhargava, B. N. (1971) A note on the extra-terrestrial ring current under very quiet magnetic conditions Journal of Atmospheric and Terrestrial Physics, 33 (3). pp. 515-518. ISSN 0021-9169
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/002191...
Related URL: http://dx.doi.org/10.1016/0021-9169(71)90156-5
Abstract
The presence of a ring current under extremely quiet magnetic conditions is established from an examination of the mean daily horizontal intensity of the Earth's magnetic field over a 37-yr period. With an increase in the index Ap of magnetic activity the horizontal intensity is shown to decrease linearly. Departures from the linear relationship, however, occur when Ap assumes values of about 45 and 90. It is suggested that these departures may be due to increased pressure on the magnetospheric boundary associated with the M-region and flare plasma respectively.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 27613 |
| Deposited On: | 10 Dec 2010 11:58 |
| Last Modified: | 17 May 2011 04:48 |
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