Ionospheric Storms
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Study of ionospheric irregularities during intense magnetic storms
Os efeitos de duas tempestades magnéticas intensas sobre irregularidades ionosféricas foram analisados usando dados de cintilação do sinal de GPS das estações São Luís (2,57ºS, 44,21ºW, inclinação magnética 1,73ºS) na região equatorial, São José dos Campos (23,07ºS, 45,86ºW, inclinação magnética 18,01ºS) e Cachoeira Paulista (22,57ºS,
Revista Brasileira de Geofísica. Publicado em: 2007
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2. Estudo de irregularidades ionosféricas em períodos de baixa ocorrência em baixas latitudes sob condições calmas / Studies of low-latitude ionospheric irregularities during the periods of their low frequency of occurrence, and under quiet conditions
This thesis research focalises a study of the mechanisms involved in the generation and evolution of the ionospheric plasma bubbles by means of experimental data and modeling. The experimental data were obtained by night airglow (OI630nm) imagers and Digisondes. The airglow allsky imager was located at São João do Cariri (7,5°S, 36,5°O, I=-20°), and the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/11/2005
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3. Studies of low-latitude ionospheric irregularities during the periods of their low frequency of occurrence, and under quiet conditions / Estudo de irregularidades ionosféricas em períodos de baixa ocorrência em baixas latitudes sob condições calmas
This thesis research focalises a study of the mechanisms involved in the generation and evolution of the ionospheric plasma bubbles by means of experimental data and modeling. The experimental data were obtained by night airglow (OI630nm) imagers and Digisondes. The airglow allsky imager was located at São João do Cariri (7,5°S, 36,5°O, I=-20°), and the
Publicado em: 2005
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4. Ionospherica F-layer nocturnal zonal drift studies over Brazilian region / Estudos das derivas zonais da camada F da ionosfera noturna sobre a região brasileira
This study focused on the nocturnal zonal plasma drifts of the ionosphere (F layer) at equatorial and low latitude regions of the Brazil. The analysis is interpreted using the simple plasma drift model (coupled ionosphere-electric field model of Eccles, 1998) and monochromatic digital images of the OI630nm emission, which allow direct visualization of the io
Publicado em: 2005
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5. Study of magnetic storm effects on the ionosphere using GPS data / Estudo do efeito de tempestades magnéticas na ionosfera utilizando dados do GPS
Apesar do significativo progresso obtido nos estudos sobre as relações Sol-Terra durante períodos magneticamente perturbados, o entendimento dos efeitos das tempestades magnéticas na atmosfera superior neutra e ionizada ainda permanece como um dos assuntos mais desafiantes sobre a física desta região atmosférica. Para investigar os processos de acopla
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/12/2003
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6. Estudos da deriva zonal e dinâmica das bolhas de plasma na região tropical / Zonal drifts and dynamical study of the plasma bubbles over the tropical region
All-sky airglow OI 630 nm images obtained at Cachoeira Paulista in the period from January 1989 to December 1991 and January 1995 to December 1997 are analysed to study the nocturnal and seasonal dynamic behavior, as well as bifurcation variations of plasma bubbles during high and low solar activity. Also, all-sky images from São João do Cariri and Cachoei
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/02/2002
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7. Estudos da deriva zonal e dinâmica das bolhas de plasma na região tropical / Zonal drifts and dynamical study of the plasma bubbles over the tropical region
All-sky airglow OI 630 nm images obtained at Cachoeira Paulista in the period from January 1989 to December 1991 and January 1995 to December 1997 are analysed to study the nocturnal and seasonal dynamic behavior, as well as bifurcation variations of plasma bubbles during high and low solar activity. Also, all-sky images from São João do Cariri and Cachoei
Publicado em: 2002
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8. Effects of intense magnetic storms on the low latitude ionosphere / Efeito das tempestades magneticas intensas na ionosfera de baixa latitude
The objective of this dissertation is to study the magnetic storm effects on the ionospheric F region over the equatorial region (Fortaleza)and the low-latitude region (Cachoeira Paulista), in Brazil. This research subject is relatively new and of interest to the international scientific community. It is a complex topic since it comprises an assortment of co
Publicado em: 2000
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9. MORPHOLOGY OF IONOSPHERIC STORMS
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10. OBSERVATIONAL AND THEORETICAL ASPECTS OF MAGNETIC AND IONOSPHERIC STORMS