Computer Science
Scientific paper
Nov 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sunge...6...27a&link_type=abstract
Sun and Geosphere, vol.6, no.1, p.27-30.
Computer Science
Scientific paper
This paper presents a study of ionospheric scintillation and the Total Electron Content (TEC) characteristics at low solar activity using GPS data from a West African location.The data used are the scintillation index (S4) and the vertical TEC (vTEC) recorded at the GPS - SCINDA station of Abidjan (Latitude = 5.340 N, Longitude = 3.900 W). This work covers the period from January 2008 to January 2009.The results show that the scintillation is not intense with S4 values lower than 1 in most of the cases and during the course of the day. However from 2000 to 0200 local time, there are relatively high values of S4 confirming that scintillation is primarily a nighttime observed phenomenon. The scintillation shows a seasonal effect characterized by intense values in the equinoctial months compare to that of the solstice season. The vTEC in general exhibits a diurnal variation as a function of the solar zenith angle. Higher vTEC values are observed around 1500 local time and have the same seasonal variation with the S4 index.
Ackah J. B.
Groves K.
Mene M. N.
Obrou O. K.
Zaka Z.
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