STUDYING THE DYNAMICS OF ELECTRIC CURRENTS AND POLAR CAPS IN IONOSPHERES OF TWO HEMISPHERES DURING THE AUGUST 17, 2001 GEOMAGNETIC STORM Journal title: Solar-Terrestrial Physics Authors: Lunyushkin S. B., Mishin V. V., Karavaev Y. A., Penskikh Y. V., Kapustin V. E. Subject(s): Physics, Atmospheric Sciences