Journal ArticleDOI
Post-midnight equatorial scintillation activity in relation to geomagnetic disturbances
TLDR
In this article, the authors used VHF amplitude scintillation measurements made during the period April 1978 through December 1982 at Calcutta (23°N, 88.5°E; 32°N dip) to study the association of post-midnight scintillations with the occurrences of the maximum negative excursion in the variation of the Earth's horizontal magnetic intensity.About:
This article is published in Journal of Atmospheric and Solar-Terrestrial Physics.The article was published on 1985-08-01. It has received 48 citations till now. The article focuses on the topics: Scintillation & Earth's magnetic field.read more
Citations
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The longitudinal morphology of equatorial F-layer irregularities relevant to their occurrence
TL;DR: Maruyama and Matuura as mentioned in this paper used top-side soundings of spread-F to determine the morphology of F-layer irregularities as a function of longitude in the equatorial region is vital for understanding the physics of the development of these irregularities.
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DMSP observations of equatorial plasma bubbles in the topside ionosphere near solar maximum
TL;DR: In this paper, the authors examined a large database of postsunset plasma density measurements acquired during ∼ 15,000 equatorial crossings made by DMSP F9 and F10 in 1989 and 1991, respectively.
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Onset conditions for equatorial spread F
TL;DR: In this article, the authors used multidisciplinary observations and semi-empirical modeling to study the day-to-day variability in the occurrence of equatorial spread F (ESF).
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The role of the ring current in the generation or inhibition of equatorial F layer irregularities during magnetic storms
TL;DR: In this article, it was shown that the local time when the peak excursion of the ring current occurs (its decay from maximum negative values), affects the equatorial electric field and therefore the height of the F layer.
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Comparison of the effect of high-latitude and equatorial ionospheric scintillation on GPS signals during the maximum of solar cycle 24
TL;DR: In this paper, the authors compared the characteristics of high-latitude and equatorial scintillation using multifrequency GPS data collected at Gakona, Alaska, Jicamarca, Peru, and Ascension Island during the 24th solar maximum.
References
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The ionospheric disturbance dynamo
M. Blanc,Arthur D. Richmond +1 more
TL;DR: In this article, a numerical simulation study of the thermospheric winds produced by auroral heating during magnetic storms, and of their global dynamo effects, establishes the main features of the ionospheric disturbance dynamo.
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Equatorial electric fields during magnetically disturbed conditions 2. Implications of simultaneous auroral and equatorial measurements
TL;DR: In this article, the authors used simultaneous auroral and equatorial electric field data along with magnetic field data to study anomalous electric field patterns during disturbed times, showing that during some substorms, accompanied by ring current activity, the worldwide equatorial zonal electric field component reverses from the normal pattern.
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The equatorial ionospheric electric fields. A review
TL;DR: In this paper, radio and radar measurements of vertical and east-west F-region drift velocities at Jicamarca have determined the seasonal and solar cycle variations of the F -region eastwest and vertical electric fields, respectively.
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Equatorial electric fields during magnetically disturbed conditions 1. The effect of the interplanetary magnetic field
TL;DR: In this paper, the E and F region drift velocities have been used to look for correlations between changes in equatorial electric fields and the interplanetary magnetic field (IMF), which is not always true; the IMF may reverse without any apparent effect at the equator, and large equatorial field perturbations are sometimes observed when the IMF B/sub z/ is large and southward but not varying drastically.
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Mapping the local time‐universal time development of magnetospheric substorms using mid‐latitude magnetic observations
TL;DR: In this paper, the mid-latitude geomagnetic perturbations of both north-south and east-west field components were created to study the variability of magnetospheric substorm development.