TY JOUR TI Dynamics of disturbance level of total electron content at high and middle latitudes according to GPS data KW GPS KW ionosphere KW total electron content KW Arctic region KW geomagnetic variations JO Solnechno-Zemnaya Fizika AU Perevalova, N.P. AU Edemsky, I.K. AU Timofeeva, O.V. AU Katashevtseva, D.D. AU Yasyukevich, A.S. PY 2016 IS 2 PB INFRA-M Academic Publishing LLC.