E and F region electric fields over dip equator

Prakash, S. ; Muralikrishna, P. (1981) E and F region electric fields over dip equator Journal of Geophysical Research, 86 (A4). pp. 2095-2098. ISSN 0148-0227

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Official URL: http://onlinelibrary.wiley.com/doi/10.1029/JA086iA...

Related URL: http://dx.doi.org/10.1029/JA086iA04p02095

Abstract

The horizontal east-west drift velocity VE of ionisation irregularities in E region, and the vertical drift velocity VF of electrons in F region over Jicamarca (dip latitude ≃1°) are used to estimate the average diurnal variation of the east-west components of the electric fields in these two regions. The F region field is estimated from VF by using the relationship derived earlier by Woodman. The E region field is estimated from VE by using a relationship different from the one used earlier by Balsley and Woodman and is derived by using more realistic electrojet and conductivity models. The E region electric field thus obtained is found to be weaker at least by a factor of 3 than that estimated by Balsley and Woodman. A comparative study shows that the east-west electric field in the F region is, most of the time, stronger than that in the E region, and also that the ratio of the E region field to the F region field systematically increases from forenoon to afternoon hours, and from pre-midnight to post-midnight hours.

Item Type:Article
Source:Copyright of this article belongs to American Geophysical Union.
ID Code:97739
Deposited On:20 Sep 2013 04:28
Last Modified:20 Sep 2013 04:28

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