Simultaneous Observations of Topside H+ Ions at Sub-auroral and Middle Latitudes Using IS Radars at Millstone Hill and Kharkiv: Initial Results

Dmytro V. Kotov1, Philip John Erickson2, Larisa P Goncharenko2, Philip G Richards3, Oleksandr V. Bogomaz4, Leonid Chernogor4, Vladimir Truhlik5, Maryna M. Siusiuk6 and Igor F. Domnin4, (1)Institute of Ionosphere, Kharkiv, Ukraine, (2)MIT Haystack Observatory, Westford, United States, (3)University of Alabama in Huntsville, Huntsville, United States, (4)Institute for Near-Earth Space Research, National Technical University "Kharkiv Polytechnic Institute", Kharkiv, Ukraine, (5)Institute of Atmospheric Physics CAS, Department of Ionosphere and Aeronomy, Prague, Czech Republic, (6)National Technical University "Kharkiv Polytechnic Institute", Kharkiv, Ukraine