TY JOUR TI Geomagnetic method for automatic diagnostics of auroral oval boundaries in two hemispheres of Earth KW equivalent current function KW convection reversal boundary KW magnetogram inversion technique KW field-aligned currents KW auroral oval boundaries JO Solar-Terrestrial Physics AU Penskikh, Y.V. AU Lunyushkin, S.B. AU Kapustin, V.E. PY 2021 IS 7 PB INFRA-M Academic Publishing LLC.