Sun-Earth connection physics in a wide sense: Energy transfer processes from the solar wind to the magnetosphere – ionosphere system; Effects of large solar disturbances in the magnetosphere and ionosphere; Auroral processes and their relationship to magnetotail dynamics; Storm and substorm effects in the magnetotail, in the inner magnetosphere and in the ionosphere; Long-term solar variability effects in the geoefficiency of the solar wind driving; and Space weather effects of solar wind driven magnetospheric dynamics. Expert in empirical modeling of the magnetospheric magnetic field and development of quantitative analysis methods for global MHD simulations. Expert in multi-instrument data analysis using space-borne and ground-based instruments including radars, optical and magnetic measurements.