scholarly journals Analysis of Longitudinal Advancement of the Peak Total Electron Content in the African Equatorial Anomaly Region Using Data From GPS Receivers and GIS Stations in Kenya

2014 ◽  
Vol 6 (1) ◽  
Author(s):  
Jared O. H. Ndeda ◽  
Paul O. Odera
Keyword(s):  
Total Electron Content ◽  
Electron Content ◽  
Equatorial Anomaly ◽  
Total Electron ◽  
Gps Receivers ◽  
Using Data ◽  
Anomaly Region

scholarly journals Transient Variations of Total Electron Content (TEC) Over a Terrestrial Point within Magnetic Anomaly Region

2021 ◽  
pp. 1-9
Author(s):  
Rufus Sola Fayose
Keyword(s):  
Total Electron Content ◽  
Early Morning ◽  
Equatorial Region ◽  
Electron Content ◽  
Time Data ◽  
Equatorial Anomaly ◽  
Total Electron ◽  
High Positive Correlation ◽  
Short Period ◽  
Anomaly Region

This paper investigate the variability of Total Electron Content TEC over a terrestrial point within equatorial anomaly region using the NovAtel GSV 4000B GPS-SCINDA system at Akure (7.3°N, 5.2°E), Nigeria. This system is capable of tracking up to 14 GPS satellites simultaneously. Total Electron Content (TEC) over equatorial region using a real time data collected via a GPS-SCINDA facility were analyzed to study the ionospheric variations in terms of Total Electron Content (TEC) for the period of three years. Diurnal variations and Monthly mean variations of Total Electron Content within the equatorial anomaly region were examined. The diurnal variation of TEC showed pre-dawn minimum for a short period of time, followed by a steep early morning increase and then reached maximum value between 14:00 UT and 16:00 UT. The influence of solar activity on VTEC was investigated by taking the correlation coefficients between VTEC, F10.7cm radio flux index and sunspot numbers. The range of solar flux variation during the period of observation is very limited; there is high positive correlation (Correlation Coefficient 0.61) between daytime peak TEC and the solar F10.7 flux.

Night-time total electron content enhancements at equatorial anomaly region in China

2008 ◽  
Vol 41 (4) ◽  
pp. 617-623 ◽  
Author(s):  
Yanhong Chen ◽  
Guanyi Ma ◽  
Wengeng Huang ◽  
Hua Shen ◽  
Jinghua Li
Keyword(s):  
Total Electron Content ◽  
Electron Content ◽  
Equatorial Anomaly ◽  
Night Time ◽  
Total Electron ◽  
Anomaly Region

Total electron content variations in equatorial anomaly region

2012 ◽  
Vol 50 (4) ◽  
pp. 441-449 ◽  
Author(s):  
F.M. D’ujanga ◽  
J. Mubiru ◽  
B.F. Twinamasiko ◽  
C. Basalirwa ◽  
T.J. Ssenyonga
Keyword(s):  
Total Electron Content ◽  
Electron Content ◽  
Equatorial Anomaly ◽  
Total Electron ◽  
Anomaly Region

Variations of total electron content in the equatorial anomaly region in Thailand

2015 ◽  
Vol 55 (1) ◽  
pp. 231-242 ◽  
Author(s):  
V. Rajesh Chowdhary ◽  
N.K. Tripathi ◽  
Sanit Arunpold ◽  
Durairaju Kumaran Raju
Keyword(s):  
Total Electron Content ◽  
Electron Content ◽  
Equatorial Anomaly ◽  
Total Electron ◽  
Anomaly Region

scholarly journals Global distribution of GPS losses of phase lock and total electron content slips during the 2005 May 15 and the 2003 November 20 magnetic storms

2015 ◽  
Vol 1 (4) ◽  
pp. 58-65 ◽  
Author(s):  
Юрий Ясюкевич ◽  
Yury Yasyukevich ◽  
Эльвира Астафьева ◽  
Elvira Astafyeva ◽  
Илья Живетьев ◽  
...  
Keyword(s):  
Total Electron Content ◽  
Background Level ◽  
Auroral Oval ◽  
Magnetic Storms ◽  
Electron Content ◽  
High Latitudes ◽  
Total Electron ◽  
Phase Lock ◽  
Using Data ◽  
Worldwide Network

Using data of worldwide network of GPS receivers we investigated losses of GPS phase lock (LoL) during two strong magnetic storms. At fundamental L1 frequency, LoL density is found to increase up to 0.25 % and at L2 frequency the increase is up to 3 %. This is several times as much compared with the background level. During the 2003 November 20 magnetic storm, the number of total electron content (TEC) slips exceeded the background level ~50 times. During superstorms, the most number of GPS LoL is observed at low and high latitudes. At the same time, the area of numerous TEC slips correspond to auroral oval boundaries.

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