Effects of meteor showers in the Earth ionosphere

Details Effects of meteor showers in the Earth ionosphere Effects of meteor showers in the Earth ionosphere

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994phdt.........1p&link_type=abstract

Ph.D. Thesis Instituto de Pesquisas Espaciais, Sao Jose dos Campos (Brazil).

Astronomy and Astrophysics

Astronomy

Atmospheric Effects, Chemical Effects, Earth Ionosphere, Meteoroid Showers, Radio Astronomy, Very Low Frequencies, Meteor Trails, Meteoroids, Radio Emission

Scientific paper

This work studies the interaction of meteor showers with the low terrestrial ionosphere. The analysis uses the VLF (Very Low Frequency, 10-30 kHz) radio-propagation technique and covers the period from 1966 to 1994. This technique enables the study of meteoroid interaction with the region from 60 to 90 km height, of which there is very poor information. The analysis of transequatorial VLF signals allows the monitoring of the main meteor showers at southern and northern hemispheres. The obtained results were compared with those detected by meteoric radar, for the more significant showers. The 28 years of continuous data monitoring of VLF signals allowed the study of the variability of the streams associated to the meteor showers, as well as the estimation of the physical and chemical parameters of the meteoric particles and of the considered region.

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