Institution: | (1) Polar Geophysical Institute, Karelian Scientific Center, Russian Academy of Sciences, ul. Fersmana 14, Apatity, Murmansk oblast, 184200, Russia;(2) Swedish Institute of Space Physics, Kiruna, Sweden;(3) Institute of Geosphere Dynamics, Russian Academy of Sciences, Leninskii pr. 38-6, Moscow, 117334, Russia |