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Tracking of magnetic flux concentrations over a five-day observation, and an insight into surface magnetic flux transport
Iida, Yusuke
The solar dynamo problem is the question of how the cyclic variation in the solar magnetic field is maintained. One of the important processes is the transport of magnetic flux by surface convection. To reveal this process, the dependence of the squared displacement of magnetic flux concentrations on the elapsed time is investigated in this paper …
Validation of Earth atmosphere models using solar EUV observations from the CORONAS and PROBA2 satellites in occultation mode
Berghmans, David; Slemzin, Vladimir; Kuzin, Sergey +4 more
Aims: Knowledge of properties of the Earth's upper atmosphere is important for predicting the lifetime of low-orbit spacecraft as well as for planning operation of space instruments whose data may be distorted by atmospheric effects. The accuracy of the models commonly used for simulating the structure of the atmosphere is limited by the scarcity …