Ionospheric Response to the Magnetic Storm of 22 June 2015
| Autor: | Gustavo Adolfo Mansilla |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Geomagnetic storm
010504 meteorology & atmospheric sciences Total electron content TEC Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente Northern Hemisphere Storm Solar cycle 24 Atmospheric sciences 01 natural sciences Ciencias de la Tierra y relacionadas con el Medio Ambiente Geophysics GLOBAL TEC Geochemistry and Petrology Middle latitudes 0103 physical sciences Environmental science Ionosphere 010303 astronomy & astrophysics GEOMAGNETIC STORM CIENCIAS NATURALES Y EXACTAS 0105 earth and related environmental sciences PHYSICAL MECHANISMS |
| Popis: | A global study is made of the response of the total electron content of the ionosphere (TEC) to the geomagnetic storm occurred on 22 June 2015 (one of the strongest geomagnetic storms of the current Solar Cycle 24). Using data from 44 sites, a hemispheric comparison is made by considering high latitudes (> 50), middle latitudes (30 ? 50) and low latitudes (30 N ? 30 S). The main features observed were: increases in TEC at high latitudes prior to the storm main phase, a considerable asymmetry of TEC response at middle and low latitudes of the Northern Hemisphere and the Southern Hemisphere and decreases at equatorial latitudes. The long duration enhancements in TEC were well correlated with increases in the O/N2 ratio but decreases in TEC had not associated decreases in the O/N2 ratio as occur with the decreases in the electron density. Besides, prompt penetration electric fields can play an important role in the equatorial and low-latitude ionosphere during main phase of the storm. Fil: Mansilla, Gustavo Adolfo. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física; Argentina. Instituto de Física del Noroeste Argentino, INFINOA (CONICET-UNT); Argentina |
| Databáze: | OpenAIRE |
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