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Comparison of the Ionospheric Effects of the Space Weather and Seismogenic Disturbances A.A. Namgaladze1, M.A. Knyazeva1, M.I. Karpov1,2 1 Murmansk Arctic State University, Murmansk, Russia 2 Immanuel Kant Baltic Federal University, Kaliningrad, Russia The state of the near-Earth environment is affected by the Sun, solar wind and galactic cosmic rays. These sources define the Space weather through the magnetosphere-ionospherethermosphere convection. During and shortly after the periods of enhanced solar and geomagnetic activities the upper atmosphere is disturbed mostly at high latitudes, but perturbations of charged and neutral components reach lower latitudes, thus having global coverage. Recent studies revealed local disturbances of the thermosphere and ionosphere on the eves of significant earthquakes, during volcano eruptions and intense meteorological processes. The key features of local (the so called mesoscale) ionosphere disturbances and theirs distinguishes from the global effects of the Space weather are discussed. The comparison conducted on the basis of satellite observations and numerical calculations using the Upper Atmosphere Model. The reported study was funded by RFBR according to the research project No. 16-35-00397.
