Ionospheric Scintillations Induced by Sporadic-E Irregularities Over Low Latitude (P31)

Details Ionospheric Scintillations Induced by Sporadic-E Irregularities Over Low Latitude (P31) Ionospheric Scintillations Induced by Sporadic-E Irregularities Over Low Latitude (P31)

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ihy..worke.123p&link_type=abstract

2nd UN/NASA Workshop on International Heliophysical Year and Basic Space Science. Proceedings of the conference held 27 Novembe

Astronomy and Astrophysics

Astrophysics

Scientific paper

kalpanaa20@rediffmail.com 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 1993 at low latitude station Varanasi (geomag. lat. 140 55/ N, long. 1540 E) are analyzed to study the behavior of sporadic-E irregularities during the active solar and magnetic periods. The amplitude scintillations of 250 MHz signal transmitted from geostationary satellite FLEETSAT situated at 730E longitude is monitored using a VHF receiver and chart recorder. In addition to the normal chart recording, data were also recorded digitally at a sampling rate of 10Hz on a few days. 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 behavior of these parameters under weak and strong scintillation conditions. Results of these studies yield information about the sporadic-E irregularity structures, its shape and size. Derived spectral index ranges between 2 and 10 and the characteristics length of sporadic-E irregularities varies from 150m to 3000 m. The estimated characteristic of these irregularities depends on the velocity and hence we estimate the minimum and maximum range of scale length of sporadic-E irregularities, observed in the ionosphere of Varanasi. These results are also discussed in the light of recent works.

Affiliated with

Also associated with

No associations

Rating

Ionospheric Scintillations Induced by Sporadic-E Irregularities Over Low Latitude (P31) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ionospheric Scintillations Induced by Sporadic-E Irregularities Over Low Latitude (P31), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ionospheric Scintillations Induced by Sporadic-E Irregularities Over Low Latitude (P31) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1338507