Major scientific achievements
Changing of ionospheric transparency
Experimental fact of changing ionospheric transparency after acoustic disturbance was found out. It is based on increasing of observed whistlers count.
Researches were carried out with ground-based receiver of electromagnetic waves in VLF-range. Electromagnetic signals of megnetospheric origin (whistlers) were used as a studied object.
Research results show that after acoustic disturbance the count of observed whistlers increases up to 100 times.
Executors: Soroka S., Kalita B., Lyubinetsky Z., Mezentsev V., Nogach R.
Atmospheric infrasound and seismic activity relations
The fact of relations of atmospheric infrasound and seismic activity on the local region (at the distance up to 1000 km) was found out.
The analysis of infrasonic fluctuations, observed at the atmospheric surface layer, shows significant changes of energy of infrasonic field and spectral density of its envelope at the different periods of the seismic event.
Executors: Karatayeva L., Mezentsev V.
Published: [ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ]
Solar activity and atmospheric infrasound
Solar activity and atmospheric infrasound relations were found out.
The dusturbance of the atmospheric infrasound happens after solar flare as the result of solar rays arrival into atmosphere. The diurnal variations of the atmospheric infrasound envelope becomes disturbed and its energy increases. There are changes in the spectral composition of infrasound.
Executors: Karatayeva L., Mezentsev V.
Published: [ 1 ]
Acoustic disturbance influence on total ozone level in the atmosphere
The hypothesis about low frequency atmospheric wave proceses (infrasound) influence on value of total ozone level was verified.
The spectral analysis of total ozone level and infrasound envelope for given region was carried out.
The spatial changing of total ozone level during earthquakes was analysed.
Obtained results show the relation between total ozone level and atmospheric infrasound.
Executors: Soroka S., Soroka O., Mezentsev V.
Published: [ 1 ] [ 2 ] [ 3 ] [ 4 ] [ 5 ]
Changing of ionospheric transparency observed by satellite
Active space-ground experiments for study acoustically disturbed ionosphere were carried out with onboard equipment of "DEMETER".
The aim of study was to confirm the fact of increasing ionospheric transparency after acoustic disturbance.
Electromagnetic signals of transmitting system RSDN-20 were used as studied object. During satellite flight over acoustically disturbed ionosphere the intensity increasing of observed signals was found out.
Data analysis also shows similarity of intensity behavior over artificially disturbed ionosphere and the ionosphere over seismically active zone.
Executors: Soroka S., Kalita B., Nogach R., Mezentsev V. The study was supported by Dr. Michel Parrot, CNRS.
Acoustic disturbance influence on GPS positioning
Experiments for study of acoustic disturance influence in the atmosphere on passing Global Positioning Systems signals were carried out.
The GPS receiver "L1 EPOCH-10" was used.
The analysis method allows to find out increasing of variation of fixed object coordanates after acoustic disturbance.
Executors: Nogach R., Mezentsev V.
Published: [ 1 ]