Institution: | (1) Moscow State University, Vorob'evy gory, Moscow, 119899, Russia;(2) Schmidt Joint Institute of Physics of the Earth, Russian Academy of Sciences, ul. Bol'shaya Gruzinskaya 10, Moscow, 123810, Russia;(3) Polar Geophysical Institute, Kola Research Center, Russian Academy of Sciences, Apatity, Murmansk oblast, Russia |