Observations of the ionospheric disturbances and geomagnetic pulsations in the Far-Eastern Russia and Japan

  1. Solar-Terrestrial Environment Laboratory, Nagoya University, Japan
  2. nstitute of Cosmophysical Research and Radio Wave Propagation, Far Eastern Branch of the Russian Academy of Sciences, Russian Federation

We have made routine measurements of the geospace environment in the longitudes of Far-Eastern Russia
and Japan since 2007, using all-sky airglow imagers and induction magnetometers in collaboration with the
Institute of Cosmophysical Research and Radio Wave Propagation, Far Eastern Branch of Russian Academy
of Sciences. From the 630-nm airglow imaging observations, nighttime medium-scale traveling ionospheric
disturbances (MSTIDs) are frequently observed. The MSTIDs are mostly propagate southwestward over Japan,
while some MSTIDs over Far-Eastern Russia propagate northeastward, indicating that the propagation direction
has latitudinal difference. The induction magnetometers measure geomagnetic Pc1 pulsations which show
propagation from high to low latitudes with changing their polarization parameters. In this presentation we
review these recent results from the observations in the Far-Eastern Russia and Japan.