HR: 0800h
AN: SA31A-05    [Abstracts]
TI: Equatorial Total Electron Content (TEC) at Low and High Solar Activity
AU: * MENE, M N
EM: menemedard@yahoo.fr
AF: UNIVERSITY OF COCODY,UFR SSMT, LAPA-MF, 22 BP 582, ABIDJAN, 22, Cote D'ivoire
AU: OBROU, O K
EM: okobrou@fulbridhtweb.org
AF: UNIVERSITY OF COCODY,UFR SSMT, LAPA-MF, 22 BP 582, ABIDJAN, 22, Cote D'ivoire
AU: KOBEA, A T
EM: kobea@fulbrightweb.org
AF: UNIVERSITY OF COCODY,UFR SSMT, LAPA-MF, 22 BP 582, ABIDJAN, 22, Cote D'ivoire
AU: ZAKA, K Z
EM: komzah@yahoo.fr
AF: UNIVERSITY OF COCODY,UFR SSMT, LAPA-MF, 22 BP 582, ABIDJAN, 22, Cote D'ivoire
AB: Total Electron Content derived from ionosonde data recorded at Korhogo (Lat=9.33 N, Long =5.43 W, Dip = 0.67 S) are compared to the Internatial Reference Ionosphere (IRI) model predicted TEC for high (1999) and low (1994) solar activity conditions. The result shows that the TEC has a solar activity and seasonal dependence. The IRI predicted values are closer to the observed TEC at high solar activity. However, at low solar activity the IRI overestimates the observed TEC. The deviation is more prominent in equinox during the time range 0900 to 2300 local time. The deviation is estimated to 60% of the observed TEC.
DE: 2400 IONOSPHERE (6929)
DE: 2415 Equatorial ionosphere
DE: 2423 Ionization processes (7823)
DE: 2447 Modeling and forecasting
DE: 2479 Solar radiation and cosmic ray effects
SC: SPA-Aeronomy [SA]
MN: 2007 Joint Assembly