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Influence of the St. Patrick's Day geomagnetic storm on the mid-latitude E and F regions.

Abstract : We will discuss the impact of St. Patrick's Day geomagnetic storm that occurred between 17 -19 March 2015 on the E and F-region of the ionosphere. During the initial phase of this event the foF2 increases about 3 MHz in respect to the quiet period followed by a sharp decrease in foF2 values of about 10 MHz, reaching -6 MHz in the end of the main phase (Dst dropped to -225 nT on 17th March) as observed using Incoherent Scatter Radar and ionosonde located in Puerto Rico. However, during the rest of the disturbance, the F-region showed an increase in the electron concentration, in particular during the nighttime periods. Large fluctuations were observed in hmF2 with variations up to 150 km relative to quiet time period. This paper will also investigate the coupling between high and mid latitudes along with E and F region of the ionosphere over Arecibo.
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https://hal-insu.archives-ouvertes.fr/insu-03573485
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Submitted on : Monday, February 14, 2022 - 5:08:15 PM
Last modification on : Tuesday, May 10, 2022 - 3:24:58 PM

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C. Garnett Marques Brum, S. Raizada, R. Hajra, E. Echer. Influence of the St. Patrick's Day geomagnetic storm on the mid-latitude E and F regions.. American Geophysical Union, 2016, San Francisco, United States. ⟨insu-03573485⟩

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