First experiments on studying the condition of the atmosphere and of the ionosphere in the Baikal region within nighttime during the seismic vibrator operation

We present the first results of studying the effect of a ~100-ton seismic vibrator operation on the atmospheric and ionospheric conditions. The investigation was performed in the Baikal region during nighttime, and comprised two experiments: the spring one (2013 April 11-12) and the summer one (2013 August 13-15). To hold the investigations, we used the network of the LW-MW-SW Doppler receivers and the ISTP SB RAS optical complex. The summer experiment was performed by involving GPS-receivers. The experiment showed that the amplitude modulation of the LW-SW signal propagating over the vibrator operation site and aside is absent or below the noise level. The SW-signal frequency 0.3-0.4 Hz increase surpassing the measurement dispersion for the referent days was revealed to exist. These temporal variations correlate well with the variations in the 577.7 nm atomic oxygen emission. A possible effect in the total electron content variations was recorded only in one case of the vibrator operation. In this case, a solitary wave with an ~ 0.15 TECU amplitude propagating at ~100 m/s was observed in TEC.