Dynamics of the Magnetospheric Magnetic Field during Strong Magnetic Storms in 2015 According to Measurements on Board <Emphasis Type="Italic">Van Allen Probes</Emphasis> and Modeling Results
1.Skobeltsyn Institute of Nuclear Physics, Moscow State University,Moscow,Russia;2.Faculty of Physics, Moscow State University,Moscow,Russia;3.ISAE-SUPAERO,Toulouse,France