Estudo da variabilidade da deriva vertical do plasma ionosférico sobre a região de Natal/RN, Fortaleza/CE e Cachoeira Paulista/SP para alguns casos de tempestades magnéticas de abril a setembro de 2000
In this work are presented the results of research on the variation of vertical plasma drift from the F layer that commonly occurs during the period close to the going down of the sun (between 21UT - 22UT), and consisting of an increase in the F layer in time of day and a drop at night on the cit...
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| Formato: | Dissertação |
| Idioma: | por |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/20633 |
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| Resumo: | In this work are presented the results of research on the variation of vertical
plasma drift from the F layer that commonly occurs during the period close to the
going down of the sun (between 21UT - 22UT), and consisting of an increase in the F
layer in time of day and a drop at night on the cities of Natal / RN (The 33.7º, 5.6º S),
Fortaleza / CE (38.45º O, 3.9º S) and Cachoeira Paulista / SP (45.0ºO, 22.7º S ).
Thus, data was used (ionograms) virtual height t ( h' ) as a function of the frequency F
for the layer of the ionosphere. These data were collected through ionossonda type
CADI (Canadian Advanced Digital Ionosonde) to the cities of Natal and Fortaleza,
and the Digisonde DPS to the town of Cachoeira Paulista. They considered only the
data available 2000 maximum solar year. With the virtual height ( h' ) data reduced in
the frequencies of 6MHz and 5MHz, the next step was to calculate. The results
showed that the variability of the vertical drift rate F ionospheric layer periods of
magnetic storms is related both to the penetration of the electric fields as the
disturbance dynamo electric fields. |
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