| Autor: |
Gustavo A. Mansilla |
| Jazyk: |
English<br />Spanish; Castilian |
| Rok vydání: |
2001 |
| Předmět: |
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| Zdroj: |
Geofísica Internacional, Vol 40, Iss 2, Pp 135-144 (2001) |
| Druh dokumentu: |
article |
| ISSN: |
0016-7169 |
| Popis: |
Neutral gas composition data (molecular nitrogen N2, atomic oxygen O and argon Ar) from the Dynamic Explorer 2 satellite, and critical frequency of F2-layer obtained with ionosondes, are used to examine the response of the ionosphere-thermosphere system during two intense geomagnetic storms on July 13, 1982 and September 21, 1982. After the initial phase of the storms large fluctuations of O density at high and low latitudes and increases of N2 and Ar densities are produced. Increases of N2/O ratio and negative ionospheric storms are correlated and the composition changes are produced by a storm-time circulation. It is concluded that the behavior of the ionosphere is strongly compositionally controlled at high and low latitudes a few hours after storm commencement. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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