Effects of powerful earthquakes in the earth's ionosphere

Details Effects of powerful earthquakes in the earth's ionosphere Effects of powerful earthquakes in the earth's ionosphere

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ge%26ae..30..680e&link_type=abstract

Geomagnetizm i Aeronomiia (ISSN 0016-7940), vol. 30, July-Aug. 1990, p. 680-682. In Russian.

Computer Science

Sound

2

Doppler Effect, Earthquakes, Ionospheric Disturbances, Seismic Waves, Sonograms, Sound Waves

Scientific paper

Three types of ionospheric disturbances caused by earthquakes in Armenia on Dec. 7, 1988 and Jan. 24, 1989 were identified on the basis of vertical-sounding data and multifrequency oblique Doppler sounding data. Type I was connected with the transformation of seismic waves into long-period acoustic waves. Type II is produced by plasma-acoustic waves and has a horizontal propagation velocity of 1.6-1.8 km/s. Type III is produced by acoustic-gravity waves and has a horizontal propagation velocity of 0.4-0.8 km/s.

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