TY JOUR TI Geomagnetic activity during St. Patrick's Day storm inferred from global and local indicators KW Geomagnetic storm KW geomagnetic activity KW local geomagnetic activity indicators KW discrete mathematical analysis JO Russian Journal of Earth Sciences AU Gvishiani, A.D. AU Sidorov, R.V. AU Lukianova, R.Y. AU Soloviev, A.A. PY 2016 IS 16 PB Geophysical Center of the Russian Academy of Sciences