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Ionospheric Scintillation Morphological Analysis Using GPS-SCINDA Data at Low Latitude Ground Station
  • Mohammed Ayalew Belay
Mohammed Ayalew Belay
Hawassa University

Corresponding Author:zeru326@gmail.com

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This study aims to present the morphology of GPS L-band scintillations at the equatorial anomaly station Bahir Dar (11030’N, 37030’E) using GPS-SCINDA data in the descending high solar activity period between January 2014 to December 2014. In studying low-latitude scintillation, we have used millions of data recorded every minute of one year by 32 GPS satellite and it is found that intense scintillation occurred during the day time with a small frequency and very frequent occurrences of relatively moderate scintillation during the night time. In the period of observation, the variation of scintillations with local time and season are analyzed and it is found that occurrence of scintillation is minimum in summer months and maximum in equinox months with highest values observed in the months of March and September. Pre-midnight and post-midnight occurrence of scintillation is also studied and Pre-midnight scintillation was found to be maximum in equinox whereas it is minimum in winter months. Generally, it is found that most of scintillations are weak (s4<0.1) and intense scintillations with s4>0.3 are rare.