Study of Equatorial Ionospheric Irregularities for the Assessment of Impacts on Communication/Navigation System (7)
Final rept. 1 Aug 2011-1 Aug 2013
NATIONAL CENTRAL UNIV CHUNG-LI (TAIWAN)
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The main purpose of the study is to carry out a correlated study of global and seasonal scintillation morphology in the equatorial region using a coincident observation that occurred on 24 Mar 2000 between the irregularity structure observed by ROCSAT-1 and the scintillation experiment carried out at the Ascension Island. The two sets of data were studied separately first, and then compared correlatively for their causal relationship. The results show the reasonable scintillation level at coincident time to indicate a direct relationship between the irregularity structure and the scintillation in both temporal and amplitude variations. Second, since the ionospheric density irregularities are the source of ionospheric radiowave scintillation that affects space communication and navigation, in-depth investigation for the cause of ionospheric irregularities has been carried out. In conclusion, our analysis indicates that the seeding of deep atmospheric convection represented by OLR for the ionospheric irregularity occurrences has not happened as frequently as it was thought.
- Atmospheric Physics