1. T. Maruyama, K. Hozumi, G. Ma, P. Supnithi, N. Tongkasem and Q. Wan”Double-thin-shell approach to deriving total electron content from GNSS signals and implications for ionospheric dynamics near the magnetic equator,” Earth, Planets and Space, 2021.  Download

  2. P. Kenpankho, A. Chaichana, K. Trachu, P. Supnithi, K. Hozumi, “Real-time GPS receiver bias estimation,” Advances in Space Research, 2021,
  3. T.Kikuchi, J. Chum, I.TOmizawa, K.Hashimoto, K.Hosokawa, Y.Ebihara, K.Hozumi, P. Supnithi, “Penetration of the electric fields of the geomagnetic sudden commencement over the globe as observed with the HF Doppler sounders and magnetometers,” Journal of Earth, Planets and Space, Accepted, 2020.

  4. J. Budho, P. Supnithi, S. Saito, “Single-Frequency Time-Step Ionospheric Delay Gradient Estimation at Low-Latitude Stations,” IEEE Access,  vol.8, pp. 201516-201526, 2020. .
  5. P. Jamjareegulgarn, P. Supnithi, et al., “Improving the modeling of bottomside thickness parameters over midlatitudes and high latitudes,” Advances in Space Research, 2020.  (2018 JCR Impact factor = 1.746)
  6. P. Thammavongsy et al.,”Spread-F prediction model for the equatorial Chumphon station, Thailand,” Advances in Space Research, 2020. (DOI:  (2018 JCR Impact factor = 1.746)
  7. A. Bumrungkit, P. Supnithi, S. Saito, “Statistical Analysis of Separation Distance between Equatorial Plasma Bubbles near Suvarnabhumi International Airport, Thailand,” Journal of Geophysical Research – Space Physics, DOI: 10.1029/2018JA025612 . (2016 JCR Impact factor = 3.42).  Link
  8. J. Buddho, P. Supnithi, S. Saito,”Analysis of quiet‐time vertical ionospheric delay gradients around Suvarnabhumi Airport, Thailand,” Radio Science, 2018. DOI: 10.1029/2018RS006606. (2016 JCR Impact Factor = 1.58) Download
  9. M. Pietrella, M. Pezzopane, P.R. Fagundes, R. de Jesus , P. Supnithi, S. Klinngam, R.G. Ezquer, M.A. Cabrera, “Equinoctial spread-F occurrence at low latitudes in different longitude sectors under moderate and high solar activity,” Journal of Atmospheric and Solar-Terrestrial Physics, (164), 2017, 149-163.
  10. P. Jamjareegulgarn, P. Supnithi, K. Watthanasangmechai , T. Tsugawa, ”Study of ionosperic topside vairiations based on NeQuick topside formulation and comparisons at equatorial latitude station, Chumphon, Thailand,” Advances in Space Research, vo. 60, no.2, July 2017, pp. 206-221. Download
  11. N. Wichaipanich , K. Watthanasangmechai, P. Supnithi and T.  Tsugawa,”A comparison of neural network-based predictions of foF2 with the IRI-2012 model at conjugate points in Southeast Asia,” Advances in Space Research, vol. 59, no. 12, June 2017. Download
  12. T. Maruyama, G. Ma, T. Tsugawa, P. Supnithi and T. Komolmis, “Ionospheric peak height at the magnetic equator: Comparison between ionosonde measurements and IRI,” Advances in Space Research, 2016, vol. 60, no. 2, p.375-380. Download
  13. P. Jamjareegulgarn, P. Supnithi, K. Watthanasangmechai , T. Yokoyama, T. Tsugawa, M. Ishii, ”A new expression for computing the bottomside thickness parameter and comparisons with the NeQuick and IRI-2012 models during declining phase of solar cycle 23 at equatorial latitude station, Chumphon, Thailand,” Advances in Space Research, 2016, Download.
  14. C. Jiang, C. Deng, G. Yang, J. Liu, P. Zhu, T. Yokoyama, H. Song, T. Lan, C. Zhou, X. Wu, Y. Zhang, Z. Zhao, T. Komolmis, P. Supnithi, C. Y. Yatini, “Latitudinal variation of occurred local time of post-midnight enhancements peaks in F layer electron density at the low latitudes: a case study,” DOI: 10.1002/2015JA022319 .
  15. K. Watthanasangmechai, M. Yamamoto, A. Saito, R. Tsunoda, T. Yokoyama, P. Supnithi, M. Ishii, C. Yatini, “Predawn plasma bubble cluster observed in Southeast Asia,” J. Geophys. Res. Space Physics, DOI: 10.1002/2015JA022069.
  16. S. Tulasi Ram, K. K. Ajith, V. S. Gowtam, T. Yokoyama, S. Gurubaran, Y. Otsuka, K. Shiokawa, P. Supnithi, S. Sripathi, B. Veenadhari and M. Le Huy, “Dusk side enhancement of PPEF effects on St. Patrick’s day storm on 17 March 2015,” J. Geophys. Res. Space Physics,120, doi:10.1002/2015JA021932. (2013 impact factor = 3.44)  download
  17. S. Rungraengwajiake, P. Supnithi, S. Saito, N. Siansawasdi, A. Saekow, “Ionospheric delay gradient monitoring for ground-based augmentation system (GBAS) by GPS stations near Suvarnabhumi airport, Thailand,” Radio Science, 2015. (2014 JCR impact factor = 1.44). download
  18. A. Bumrungkit, S. Rungraengwajiake, P. Supnithi, A. Saekow, “Analysis of Ionospheric Irregularity Observed near Suvarnabhumi International Airpoirt in Thailand,” Applied Mechanics and Materials, Vol. 781, pp. 85-88, Aug. 2015. (2014 SJR Impact factor = 0.15)
  19. P. Kenpankho, P. Wongcharoen, P. Supnithi, M. Ishii, T. Tsugawa, T. Maruyama, “Comparison of E layer critical frequency over the Thai station Chumphon with IRI,” Journal of Advances in Space Research, vol. 55, no. 8, Apr. 2015, pp. 2131-2138. (2013 JCR impact factor = 1.238)  download
  20. T. Maruyama, J. Uemoto, M. Ishii, T. Tsugawa, P. Supnithi, and T. Komolmis (2014), Low-latitude ionospheric height variation as observed by meridional ionosonde chain: Formation of ionospheric ceiling over the magnetic equator, J. Geophys. Res. Space Physics,119, doi:10.1002/2014JA020215 (2013 JCR impact factor = 3.44)  download
  21. S. Klinngam, P. Supnithi, S. Rungraengwajiake, T. Tsugawa, M. Ishii, T. Maruyama, “The occurrence of equatorial spread-F at conjugate stations in Southeast Asia,” Journal of Advances in Space Research, DOI: 10.1016/j.asr.2014.10.003, Vol. 55, No.8, Apr 2015, pp. 2139-2147. (2013 impact factor = 1.238)  download
  22. K. Watthanasangmechai, M. Yamamoto, A. Saito, T. Tsugawa, T. Yokoyama, P. Supnithi, C. Yatini, “Latitudinal GRBR-TEC estimation in Southeast Asia region based on the two-station method,” Radio Science, Vol.49, No.10, pp.910-920, Oct. 2014. (2013 impact factor = 1.45)
  23. P. Kenpankho, P. Supnithi, and T. Nagatsuma, “Comparison of Observed TEC values with IRI2007 TEX and IRI-2007 TEC with Optional foF2 Measurement Predictions at An Equatorial Region, Chumphon, Thailand,”  Journal of Advances in Space Research, vol.52, no.10, Nov. 2013, pp. 1820-1826.  (2011 impact factor = 1.183)      download
  24. S. Rungraengwajiake, P. Supnithi, T. Tsugawa, T. Nagatsuma and T. Maruyama, “The Variation of Equatorial Spread F Occurrences Observed from the Ionosondes at Thailand Longitude Sector,” Journal of Advances in Space Research, vol. 52, no. 10, Nov. 2013, pp. 1809-1819. DOI: 10.1016/j.asr.2013.07.041 (2011 impact factor = 1.183) download
  25. N. Wichaipanich, P. Supnithi, T. Tsugawa, T. Nagatsuma and T. Maruyama,“Comparison of ionosphere characteristic parameter obtained by ionosonde with IRI-2007 model at Southeast Asia conjugate point equatorial experiment,” Journal of Advances in Space Research, vol. 52, no. 10, Nov. 2013, pp. 1748-1755. (2011 JCR impact factor = 1.183) download
  26. Pezzopane, M., Zuccheretti, E., Abadi, P., de Abreu, A. J., de Jesus, R., Fagundes, P. R., Supnithi, P., Rungraengwajiake, S., Nagatsuma, T., Tsugawa, T., Cabrera, M. A., and Ezquer, R. G.: Low-latitude equinoctial spread-F occurrence at different longitude sectors under low solar activity, Annales Geophysicae, 31, 153-162, doi:10.5194/angeo-31-153-2013, 2013. (JCR  impact factor = 1.183)    download
  27. M. Nishioka, Y. Otsuka, K. Shiokawa, T. Tsugawa, Effendy, P. Supnithi, T. Nagatsuma, and K.T. Murata, “On post-midnight field-aligned irregularities observed with a 30.8-MHz radar at a low latitude: Comparison with F-layer altitude near the geomagnetic equator,” Journal of Geophysical Research, doi:10.1029/2012JA017692, vol. 117, no.A8, Aug. 2012. (JCR impact factor = 3.303)      download
  28. K. Watthanasangmechai, P. Supnithi, S. Lerkvaranyu, T. Maruyama, “TEC prediction with neural network for Thailand equatorial latitude station,” Earth Planets Space, vol. 64, no.6, pp. 473-483, June 2012. (2009 impact factor = 1.074)      download
  29. P. Kenpankho, P. Supnithi, T. Tsugawa and T. Maruyama, “Variation of Ionospheric slab thickness observations over Chumphon equatorial magnetic latitude station, ” Earth Planets Space, vol. 63, pp. 359-364, June 2011. (JCR impact factor = 1.074)       download
  30. P. Kenpankho, P. Supnithi, T. Tsugawa and T. Maruyama, “Comparison of GPS TEC measurements with IRI TEC prediction at an equatorial latitude station, Chumphon, Thailand, ” Earth Planets Space, vol. 63, pp. 365-370, June 2011.  (JCR impact factor = 1.074)    download
  31. N. Wichaipanich, P. Supnithi, M. Ishii and T. Maruyama, “Thailand low and equatorial F2-layer peak electron density and comparison with IRI-2007 model,” Earth Planets Space, 2011.  (JCR impact factor = 1.074) download
  32. N. Wichaipanich, P. Supnithi, M. Ishii and T. Maruyama, “Ionospheric variation at Thailand equatorial latitude station: comparison between observations and IRI-2001 model predictions,” Journal of Advances in Space Research, vol. 45, Issue 2, pp. 284-293, January 2010.  (JCR impact factor = 0.86)   download
  33. L.M.M.Myint, P. Supnithi, P. Tantasawasd, “An Inter-Track Interference Mitigiation  Technique Using partial ITI Estimation in Patterned Media Storage,“ IEEE Transaction on Magnetics, vol. 5, no. 10, October 2009.  (impact factor = 1.129)   download
  34. P. Supnithi, W. Wongtrairat, S. Tantaratana , “Performance of M-PSK and M-QAM in Mobile Satellite and Flat Fadings with MRC diversity,” IEEE Transaction on Wireless Communication, vol. 8, no. 7, July 2009, pp. 3360-3364. (JCR impact factor = 2.181)  download
  35. W. Wongtrairat, P. Supnithi, “Performance of digital modulation in double Nakagami-m fading channels with MRC diversity,” IEICE Transaction on Communication, vol. E92-B, No. 2, Feb. 2009, pp. 559-566.  (JCR impact factor = 0.252)   download
  36. A. Wongkeeratikul, P. Supnithi, S. Noppnakeepong,  N. Leelaruji and N. Hemakorn, “Modeling and Measurement of Airplane Flutter Phenomena on TV Broadcasting Signal” IEEE Transaction on Broadcasting, vol. 54, no. 2, pp. 173-181, June 2008 (JCR impact factor = 1.102)   download
  37. T. Tsugawa, M.Nishioka, M.Ishii, K.Kozumi, S. Saito, A.Shinbori, Y.Otsuka, A.Saito, S.M.Buhari, M.Abdullah, P.Supnithi, “Total electron content observations by dense regional and worldwide internaitonal networks of GNSS,” Journal of Diaster Research, Vol.13, No.3, 2018, pp. 535-545.  Download
  38. T. Tsujii, T. Fujiwara, T. Kubota, C. Satirapod, P. Supnithi, T. Tsugawa, H. Lee, ” Measurement and Simulation of Equatorial Ionospheric Plasma Bubbles to assess their impact on GNSS performance, ” Journal of Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, Vol. 30, No. 6-2. (2013 SJR  IF = 0.102)