Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990esasp.311..321d&link_type=abstract
In ESA, Plasma Astrophysics p 321-327 (SEE N91-15046 06-90)
Astronomy and Astrophysics
Astrophysics
Airglow, Earth Atmosphere, Earth Ionosphere, Earthquakes, Gravitational Waves, Magnetoacoustic Waves, Monatomic Gases, Night Sky, Oxygen, Photometry, U.S.S.R.
Scientific paper
Some peculiarities of the upper atmosphere airglow variations according to Abastumani (USSR) observations before and after earthquakes (EQs) near the region of a major shock are given. It is shown that peculiarities of the night intensity variation of atomic oxygen OI 557.7 nm and OI 630 nm lines depend both on the EQ amplitude and region of observations. It is assumed that the reason for such variations is dissipation and dissociation of acoustic-gravitational waves in the middle and upper atmosphere, that in its turn is caused by soil shifting and lava like growth of fractures and spalling of rocks. Or the reason may consist in the periodic amplitude modulation of the high frequency seismic noise on a vast area around the center of a next arterial fracture due to an increasing tension. Based on the example of observations after the Spitak (USSR) EQ, the possibility of wind generation after the major shock is indicated.
Didebulidze G. G.
Fishkova L. M.
Pataraya Avtandil D.
Toroshelidze T. I.
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