Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007basi...35..625p&link_type=abstract
Bulletin of the Astronomical Society of India, Vol. 35, p. 625-630
Astronomy and Astrophysics
Astronomy
2
Ionospheric Irregularities, Vhf Scintillations, Sporadic-E, Wave Propagation.
Scientific paper
The observations of daytime ionospheric scintillation are attributed to E-region irregularities at high and equatorial latitudes. In this paper, VHF amplitude scintillations recorded during the daytime period from 1991 to 1999 at low latitude station Varanasi (geomag. lat. = 14° 55' N, long. = 154^0 E) are analyzed to study the behaviour of sporadic-E irregularities during the active solar and magnetic periods. The daytime digital scintillation data have been analyzed to study some important parameters of scintillation producing sporadic-E irregularities like auto-correlation function, power spectral densities, signal de-correlation time etc. We report the behaviour of these parameters under weak and strong scintillation conditions. The results are also discussed in the light of recent works.
Patel Kalpana
Patel R. P.
Singh Ambuj K.
Singh Ravi P.
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