Computer Science – Sound
Scientific paper
Feb 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982ijrsp..11...20t&link_type=abstract
Indian Journal of Radio and Space Physics, vol. 11, Feb. 1982, p. 20-22.
Computer Science
Sound
2
Ionospheric Electron Density, Ionospheric Ion Density, Solar Eclipses, Gravity Waves, India, Rocket Sounding, Satellite Sounding
Scientific paper
Reference is made to recent studies indicating that the mechanisms causing an increase in electron content and electron density and those causing a reduction of these parameters come into play simultaneously during a solar eclipse. An ionosonde having a sweep frequency of 1 to 25 MHz, covered in 1 min, is used in the study described here. It has a peak power of 6 kW and uses a crossed-delta-type antenna. It is noted that the ionograms were recorded photographically. The parameters f(0)F2, h(prime)F and h(p)F2 are found to increase during the eclipse. The F1 and F2 ionization densities changed in mutually opposite senses. This is seen as suggesting that ionization is transported from the lower to the upper layer, thereby causing ionization enhancement in the F2 layer. Wavelike patterns are observed in the variations of f(0)F2 and f(min). The observed undulations are linked with gravity waves, possibly induced during the eclipse.
Barbara Ananda Kumar
Devi Minakshi
Talukdar Partha
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