Complex study of wave processes in the ionosphere over Kamchatka

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   The work presents preliminary results of simultaneous observations of
   ionosphere state by radio tomography, GPS radio interferometry and
   vertical radio sounding methods. The observations were carried out in
   moderate and disturbed geomagnetic conditions in winter (February), in
   spring (May), and in summer (June). Geomagnetic disturbance index was
   determined by magnetic measurements of Paratunka station (Kamchatka
   peninsula). On the basis of the data obtained by a network of tomographic
   stations, installed in meridional direction of Kamchatka peninsula, as
   well as of the data of Kamchatka regional GPS station network for the
   considered periods, moving ionospheric disturbances with amplitude up to
   1.5 TECU, and periods of the order of 60 min were determined; they moved
   mainly in equatorial direction with up to 1000 m/s velocities. Application
   of vertical radio sounding methods allowed determination of charged
   particle corpuscular precipitation moments and approximately for this time
   electron distribution meridian section, corresponding to corpuscular
   layers, was determined by tomography methods. The obtained results allow
   us to consider future investigations to be perspective. This work is
   supported by RFBR, project  11-05-00915 and by RAS, project 12-1-П22-01.