Seasonal variation of the longitudinal structure of the equatorial ionosphere: Does it reflect tidal influences from below?

2008 ◽  
Vol 113 (A8) ◽  
pp. n/a-n/a ◽  
Author(s):  
Huixin Liu ◽  
Shigeto Watanabe
Keyword(s):  
Seasonal Variation ◽  
Equatorial Ionosphere ◽  
Longitudinal Structure

Temporal modulation of the four-peaked longitudinal structure of the equatorial ionosphere by the 2 day planetary wave

2010 ◽  
Vol 115 (A12) ◽  
pp. n/a-n/a ◽  
Author(s):  
Guiping Liu ◽  
Thomas J. Immel ◽  
Scott L. England ◽  
Karanam K. Kumar ◽  
Geetha Ramkumar
Keyword(s):  
Planetary Wave ◽  
Equatorial Ionosphere ◽  
Temporal Modulation ◽  
Longitudinal Structure

scholarly journals Temporal modulations of the longitudinal structure inF2peak height in the equatorial ionosphere as observed by COSMIC

2010 ◽  
Vol 115 (A4) ◽  
pp. n/a-n/a ◽  
Author(s):  
Guiping Liu ◽  
Thomas J. Immel ◽  
Scott L. England ◽  
Karanam K. Kumar ◽  
Geetha Ramkumar
Keyword(s):  
Equatorial Ionosphere ◽  
Longitudinal Structure

Spatial and Seasonal Ionospheric Error Growth in DGPS Measurement: A Case Study in Malaysia

2015 ◽  
Vol 68 (6) ◽  
pp. 1105-1119
Author(s):  
W.A. Wan Aris ◽  
T.A. Musa ◽  
W.H. Ooi ◽  
A. Hairizam ◽  
I.A. Musliman ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Regression Model ◽  
Global Positioning System ◽  
Solar Maximum ◽  
Equatorial Ionosphere ◽  
Reference Station ◽  
Positioning System ◽  
Error Growth ◽  
Global Positioning

This paper tackles the Equatorial ionosphere and its effects on Differential Global Positioning System (DGPS) error growth over Malaysia by using a network of GPS Continuously Operating Reference Stations (CORS). Seasonal variation of ionospheric delay has been examined and findings show that the effect of spatial variation of ionospheric errors in DGPS is very significant during the equinoctial seasons. Furthermore, a DGPS regression model was developed and tested during the solar maximum year in 2013 by using internet-based DGPS. The results show that the model is capable of estimating DGPS positional errors for distances of user to reference station less than 680 km.

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