Study on plasma bubble generation mechanism using thermospheric wind data observed by the C/NOFS satellite and ground-based instruments

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Characteristics of ionospheric disturbances were studied by analyzing data of ground-based observations and satellite in-situ measurements. In this study, ionospheric disturbance which often appears during a solar minimum period was investigated in detail. I found that thermospheric winds would play an important role for the generation of the ionospheric disturbances. I also investigated characteristics of ionospheric disturbance observed following an great earthquake. It is found that both acoustic waves and gravity waves caused the ionospheric disturbances.