International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2529

Full Length Research Paper

A comparative study of Nigerian GNSS Reference Network’s – Global Positioning System (NIGNET’s-GPS) vertical Total Electron Content (vTEC) measurements with the International Reference Ionosphere - Total Electron Content (IRI-TEC) predictions over Calabar, Nigeria

Joseph Obu
  • Joseph Obu
  • Department of Physics, University of Calabar, Cross River State, Nigeria.
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Eucharia Okoro
  • Eucharia Okoro
  • Department of Physics and Astronomy, University of Nigeria, Nsukka, Enugu State, Nigeria.
  • Google Scholar
Sivla William
  • Sivla William
  • Department of Physics and Astronomy, University of Nigeria, Nsukka, Enugu State, Nigeria.
  • Google Scholar


  •  Received: 07 December 2017
  •  Accepted: 27 February 2018
  •  Published: 30 March 2018

References

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Bilitza D, Reinisch BW (2008). International Reference Ionosphere 2007: improvements and new parameters. Adv. Space Res. 42(4):599-609.
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Bilitza D, McKinnell LA (2011). International Reference Ionosphere (IRI-2011). Proceedings at the 2011 IRI Workshop, SANSA. Space Sci. 10 - 14 October, 2010, Hermanus, South Africa.

 
 

Guoqi L, Wengeng H, Jiancun G, Shen H (2013). Seasonal variability of GPS vTEC and model during low solar activity period (2006–2007) near the equatorial ionization anomaly crest location in Chinese zone. Adv. Space Res. 51:366-376.
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Hofmann-Wellenhof B, Lichtenegger H, Collins J (2001). Global Positioning System: Theory and Practice. New York: Springer-Verlag.
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Jatau B, Fernandes RMS, Adebomehin A, Gonçalves N (2010). NIGNET - The New Permanent GNSS Network of Nigeria. Proceedings at the FIG Congress 2010 - Facing the Challenges- Building the Capacity, Sydney, Australia, 11-16 April, 2010.

 
 

Okoh D, Eze A, Okere B, McKinnell LA, Okeke PN (2011).Does the IRI really know Nsukka? A comparison of IRI-TEC with GPS-TEC over Nsukka, Nigeria. Proceedings at the IRI 2011 Workshop, SANSA Space Sci., 10 -14 October, Hermanus, South Africa, 2011.

 
 

Okoh DE, Eze A, Adedoja O, Okere B, Okeke PN (2012). A Comparison of IRI TEC predictions with GPS-TEC measurements over Nsukka, Nigeria. Space Weather 10(S10002):1-6.
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Okoh DE, McKinnell LA, Cilliers P, Okere B, Okonkwo C, Rabiu B (2015). IRI-vTEC versus GPS-vTEC for Nigeria SCINDA GPS stations. Adv. Space Res. 55(8):1941-1947.
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Oyeyemi EO (2014). International Reference Ionosphere. Proceedings at the National Space Weather School and National Conference of Nigerian Geophysical Society held in Bells University of Technology, Ota - Nigeria.

 
 

Rabiu AB, Groves K, Abdulrahim RB, Fayose RS, Adeniyi JO, Ariyibi EA, Oyeyemi EO, Okere BI (2011). TEC derived from some GPS stations in Nigeria and comparison with the IRI: proceedings at the International Meeting on the Applications of GNSS, United Nations, Vienna, Austria, 12–16 December.

 
 

Rao KD (2017). An Assessment of Mapping Functions for VTEC Estimation using Measurements of Low Latitude Dual Frequency GPS Receiver. Int. J. Appl. Eng. Res. 12(4):422-427.

 
 

Seemala GK (2014). Rinex GPS-TEC Program Version 2.9.3. seemala.blogspot.com.ng, Retrieved on February 20, 2016.

 
 

Torben S, Olushola AO (2013). Single-frequency GNSS retrieval of vertical total electron content (VTEC) with GPS L1 and Galileo E5 measurements. J. Space Weather Space Clim. 3:A11-A17
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Win ZH, Yoshitaka G, Yoshiya K (2016). Estimation Method of Ionospheric TEC Distribution using Single Frequency Measurements of GPS Signals. (IJACSA) Int. J. Adv. Comput. Sci. Appl. 7(12):1-6.

 
 

Ya'acob N, Idris A (2012).Measurement Of Total Electron Content (TEC) Using Virtual Reference Station (VRS) Data At Ionosphere Layer, J. Appl. Sci. Res. 8(8):4084-4095.

 
 

Zhang B, Teunissen PJ, Yuan Y, Zhang H, Li M (2017). Joint estimation of vertical total electron content (VTEC) and satellite differential code biases (SDCBs) using low-cost receivers. J. Geod. pp. 1-13.