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Mostrando ítems 11-20 de 236
The equatorial electrojet during geomagnetic storms and substorms
(American Geophysical Union, 2015-02-16)
He climatology of the equatorial electrojet during periods of enhanced geomagnetic activity is examined using long‐term records of ground‐based magnetometers in the Indian and Peruvian regions. Equatorial electrojet ...
Moderate geomagnetic storms and their ionospheric effects at middle and low latitudes
(Elsevier, 2011-08)
This paper reports the global response of the mid high and low latitude ionosphere in four longitudinal sectors to two moderate geomagnetic storms that occurred during 2007 (the more intense storms occurred that year). The ...
Response of the Antarctic Ionosphere to Some Intense Geomagnetic Storms
(Bentham Open, 2017-05)
The effect of geomagnetic storms on the mid-high latitude F2 region is studied. For that, foF2 data from four Antarctic stations were analyzed during three intense magnetic storms occurred in high solar activity (years ...
Response of the lower atmosphere to intense geomagnetic storms
(Elsevier, 2011-09)
In this short paper we examine the possible connection between atmospheric parameters measured at low and middle altitudes and geomagnetic storms occurred in 2000 and 2003. For that, from a chain of stations located near ...
Investigation of ionospheric response to two moderate geomagnetic storms using GPS–TEC measurements in the South American and African sectors during the ascending phase of solar cycle 24
(Elsevier, 2014-05)
The responses of the ionospheric F region using GPS–TEC measurements during two moderate geomagnetic storms at equatorial, low-, and mid-latitude regions over the South American and African sectors in May 2010, during the ...
Evidence of Geomagnetic Storm Effects in the Lower Atmosphere: A Case Study
(Springer, 2010-01)
Disturbances produced by geomagnetic storms in the higher regions of the Earth's atmosphere, such as in the ionospheric F2 region and in the lower ionosphere, are relatively better known than those produced at lower ...
Ionospheric effects of an intense geomagnetic storm
(Springer, 2007-12)
An investigation of the response of the mid-high, mid and low latitude critical frequency foF2 to the geomagnetic storm of 15 July 2000 is made. Ground-based hourly foF2 values (proportional to square root of peak electron ...
Some ionospheric storm effects at an antarctic station
(Elsevier, 2016-03)
In this paper, the ionospheric response of a high latitude station to some intense geomagnetic storms occurred in 2000 and 2001 is analyzed. For that, data of the critical frequency of the F2-layer foF2 and the virtual ...
Mid-latitude ionospheric effects of a great geomagnetic storm
(Elsevier, 2004-08)
On March 13, 1989 magnetic storm effects on the mid- and low-latitude ionosphere were investigated. For this, peak electron density of F2-layer (NmF2) data from four chains of ionospheric stations located in the geographic ...
Longitudinal Variation of the Ionospheric Response to the 26 August 2018 Geomagnetic Storm at Equatorial/Low Latitudes
(Birkhauser Verlag Ag, 2020-12)
We have studied the ionospheric response at near-equator latitudes during the geomagnetic storm of 26 August 2018, which was the strongest geomagnetic disturbance that year (minimum Dst value: −174 nT). For the analysis, ...