Resources & Tools / Research

Publications

2026 (3)
  1. P. Muangkammuen, P. Suthisopapan, N. Tongkasem, P. Supnithi, A. Kruesubthaworn, J. H. Klenzing, A. Siritaratiwat, “Improving One-Day-Ahead Forecasting of Low-Latitude Amplitude Scintillation Using an Upsampling-Enhanced LSTM,” IEEE Transactions on Aerospace and Electronic Systems, vol. 62, pp. 6087–6107, 2026. https://doi.org/10.1109/taes.2026.3662676
  2. G. Mutasov, L. M. M. Myint, J. Budtho, S. Perwitasari, M. Nishioka, P. Supnithi, “Deep learning-based prediction models for the vertical total electron content using GNSS satellite observations,” Advances in Space Research, vol. 78, no. 3, pp. 2542–2558, 2026. https://doi.org/10.1016/j.asr.2026.06.001
  3. S. Andoh, S. Perwitasari, M. Nishioka, T. Naoi, T. Tsugawa, L. T. Thanh, P. Supnithi, “Ionospheric scintillations associated with equatorial plasma bubbles in Southeast Asia during the ascending and maximum phases of Solar Cycle 25,” Earth Planets and Space, vol. 78, no. 1, 2026. https://doi.org/10.1186/s40623-026-02527-3
2025 (4)
  1. N. Tongkasem, P. Supnithi, P. Thammavongsy, M. Nishioka, S. Perwitasari, S. Saito, J. H. Klenzing, L. M. M. Myint, “Spatio-temporal characteristics of ionospheric irregularities in low latitude regions during the peak of solar cycle 25,” Advances in Space Research, vol. 76, no. 1, pp. 254–268, 2025. https://doi.org/10.1016/j.asr.2025.04.062
  2. M. Ishii, J. E. R. Costa, M. Kuznetsova, M. M. Bisi, A. M. Meza, A. Veronig, C. M. Denardini, C. Plainaki, S. Dasso, M. Temmer, M. G. Molina, J. Berdermann et al., “Global landscape of space weather observations, research and operations,” Advances in Space Research, 2025. https://doi.org/10.1016/j.asr.2025.06.021
  3. G. Mutasov, P. Supnithi, J. Budtho, N. Tongkasem, M. Nishioka, S. Perwitasari, L. M. M. Myint, “Classification of Equatorial Ionospheric Irregularities Using Unsupervised Machine Learning Based on Spatiotemporal ROTI Keograms,” IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 18, pp. 21769–21782, 2025. https://doi.org/10.1109/jstars.2025.3600477
  4. P. Jamlongkul, S. Wannawichian, L. J. Paxton, C. E. Cantrall, H. Liu, G. Lu, P. Supnithi, J. Budtho, “Thermosphere–Ionosphere Responses Over Thailand During the 2015 St. Patrick’s Day Storm: Comparison of Observed O/N 2 and VTEC With the SD WACCM‐X Model Outputs,” Journal of Geophysical Research Space Physics, vol. 130, no. 10, 2025. https://doi.org/10.1029/2025ja033944
2024 (5)
  1. N. Wichaipanich, M. Nishioka, L. M. M. Myint, P. Supnithi, “Sporadic E critical frequency detection using three EIA region ionosonde stations over Southeast Asia,” Advances in Space Research, vol. 75, no. 5, pp. 4370–4385, 2024. https://doi.org/10.1016/j.asr.2024.11.068
  2. S. Sophan, P. Supnithi, L.M.M. Myint, J. Budtho, S. Saito, “Statistical Analysis and Effects of Radio Frequency Interference in GPS Signal Quality in Thailand,” GPS Solutions, vol. 28, no. 4, Art. no. 194, 2024. https://doi.org/10.1007/s10291-024-01731-6
  3. P. Benchawattananon, A. Siritaratiwat, P. Supnithi, M. Nishioka, S. Perwitasari, P. Suthisopapan, A. Kruesubthaworn, “Automatic Classification of Spread‐F Types in Ionogram Images using Support Vector Machine and Convolutional Neural Network,” Earth, Planets and Space, 76, 56 (2024). https://doi.org/10.1186/s40623-024-02002-x
  4. S. Sophan, P. Supnithi, L. Myint, K. Hozumi, M. Nishioka, S. Saito, “Local Mitigation of Higher-Order Ionospheric Effects in DFMC SBAS and System Performance Evaluation,” GPS Solutions, vol. 28, no. 74, Feb. 2024.
  5. J. Budtho, P. Supnithi, N. Siansawasdi, S. Saito, A. Saekow, L. Myint, “Ground facility error analysis and GBAS performance evaluation around Suvarnabhumi airport, Thailand,” IEEE Transactions on Aerospace and Electronic Systems, vol. 60, no. 1, pp. 537–547, 2024. https://doi.org/10.1109/TAES.2023.3326134
2023 (5)
  1. P. C. Thu, P. Supnithi, J. Budtho, A. Saekow, T. Sopon, K. Hozumi, L. M. M. Myint, “Instrumental Receiver Bias Estimation for Ionospheric Total Electron Content by Neural Network Model,” ECTI Transactions on Electrical Engineering Electronics and Communications, vol. 21, no. 3, pp. 251470, 2023. https://doi.org/10.37936/ecti-eec.2023213.251470
  2. K. Hosokawa et al., “Monitoring of Equatorial Plasma Bubbles Using Aeronautical Navigation System: A Feasibility Study,” Earth, Planets and Space, vol. 75, Art. no. 152, 2023. https://doi.org/10.1186/s40623-023-01911-7
  3. T. Thanakulketsarat, P. Supnithi, L.M.M. Myint, K. Hozumi, M. Nishioka, “Classification of the Equatorial Plasma Bubbles Using Convolutional Neural Network and Support Vector Machine Techniques,” Earth, Planets and Space, vol. 75, Art. no. 161, 2023. https://doi.org/10.1186/s40623-023-01903-7
  4. K. Seechai, L.M.M. Myint, K. Hozumi, M. Nishioka, S. Saito, M. Yamamoto, P. Supnithi, “Simultaneous Equatorial Plasma Bubble Observation Using Amplitude Scintillations from GNSS and LEO Satellites in Low-Latitude Region,” Earth, Planets and Space, vol. 75, Art. no. 127, 2023. https://doi.org/10.1186/s40623-023-01877-6
  5. P. Thammavongsy, P. Supnithi, L.M.M. Myint, K. Hozumi, D. Lakanchanh, “Equatorial Spread-F Forecasting Model with Local Factors Using the Long Short-Term Memory Network,” Earth, Planets and Space, vol. 75, Art. no. 118, 2023. https://doi.org/10.1186/s40623-023-01868-7
2022 (12)
  1. N. Tongkasem, L. M. M. Myint, P. Supnithi, “Estimation and Validation of Vertical Total Electron Content Using Standalone Single-Frequency Observations,” IEEE Access, vol. 10, pp. 103485–103495, 2022. https://doi.org/10.1109/access.2022.3208102
  2. G.B. Soares, Y. Yamazaki, A. Morschhauser, J. Matzka, K.J. Pinheiro, C. Stolle, P. ALken, A. Yoshikawa, K. Hozumi, A. Kulkarni, P. Supnithi, “Using Principal Component Analysis of Satellite and Ground Magnetic Data to Model the Equatorial Electrojet and Derive Its Tidal Composition,” Journal of Geophysical Research: Space Physics, 127, 9, Sept. 2022. https://doi.org/10.1029/2022JA030691.
  3. A. Bumrungkit, P. Supnithi, S. Saito, L.M.M. Myint, “A study of equatorial plasma bubble structure using VHF radar and GNSS scintillations over the low-latitude regions,” GPS Solutions, vol. 26, no. 4, Art. no. 148, 2022. https://doi.org/10.1007/s10291-022-01321-4
  4. S. Sophon, P. Supnithi, L.M.M. Myint and S. Saito, “Performance Improvement of the GAGAN Satellite-Based Augmentation System Based on Local Ionospheric Delay Estimation in Thailand,” GPS Solutions, 2022. https://rdcu.be/cTIKT
  5. L.M.M. Myint, P. Supnithi, K. Hozumi and S. Saito, “Analysis of Local Geomagnetic Index Under the Influence of Equatorial Electrojet (EEJ) at the Equatorial Phuket Geomagnetic Station in Thailand,” Advances in Space Research, June 2022. https://doi.org/10.1016/j.asr.2022.06.024
  6. P. Thammavongsy, P. Supnithi, L.M.M. Myint, S. Sripathi, K. Hozumi, D. Lakanchanh, “Comparison of Observed Equatorial Spread-F Statistics between Two Longitudinally Separated Magnetic Equatorial Stations and the IRI-2016 Model during Low and High Solar Activities,” Advances in Space Research, 2022.
  7. B.R. Kalita, P.K. Bhuyan, S.J. Nath, M.C. Choudhury, K. Wang, K. Hozumi, P. Supnithi, T. Komolmis, C.Y. Yatini, M.L. Huy, “The investigation on daytime conjugate hemispheric asymmetry along 100°E longitude using observations and model simulations: new insights,” Advances in Space Research, May 2022. https://doi.org/10.1016/j.asr.2022.02.058
  8. R. K. Vankadara, S. K. Panda, C. Amory-Mazaudier, R. Fleury, V. R. Devananboyina, P. Jamjareegulgarn, M. A. Haq, D. Okoh, G. K. Seemala, “Signatures of Equatorial Plasma Bubbles and Ionospheric Scintillations from Magnetometer and GNSS Observations in the Indian Longitudes during the Space Weather Events of Early September 2017,” Remote Sens. 14 (3), 652, 2022; https://doi.org/10.3390/rs14030652.
  9. P. Abadi, U. A. Ahmad, Y. Otsuka, P. Jamjareegulgarn, D. R. Martiningrum, A. Faturahman, S. Perwitasari, R. E. Saputra, R. R. Septiawan, “Modeling Post-Sunset Equatorial Spread-F Occurrence as a Function of Evening Upward Plasma Drift Using Logistic Regression, Deduced from Ionosondes in Southeast Asia,” Remote Sensing, vol. 14, no. 8, Art. no. 1896, 2022. https://doi.org/10.3390/rs14081896
  10. Ansari, K. and P. Jamjareegulgarn. 2022. Effect of Weighted PDOP on Performance of Linear Kalman Filter for RTK Drone data. (During Revision of GRSL on April 7, 2022)
  11. O.O. Odeyemi, J.O. Adeniyi, E.O. Oyeyemi, S.K. Panda, P. Jamjareegulgarn, B. Olugbon, E.J. Oluwadare, A.O. Akala, A.O. Olawepo, A.A. Adewale, “Morphologies of ionospheric-equivalent slab-thickness and scale height over equatorial latitude in Africa,” Advances in Space Research, vol. 69, no. 1, pp. 236–253, 2022. https://doi.org/10.1016/j.asr.2021.10.030
  12. M. Shah, A. Abbas, M. Ehsan, A. Calabia, B. Adhikari, M. A. Tariq, J. Ahmed, J. F. de Oliveira-Junior, J. Yan, A. Melgarejo-Morales, P. Jamjareegulgarn, “Ionospheric–Thermospheric Responses in South America to the August 2018 Geomagnetic Storm Based on Multiple Observations,” IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, vol. 15, pp. 261–269, 2022. https://doi.org/10.1109/JSTARS.2021.3134495
2021 (11)
  1. K. K. Ajith, S. T. Ram, G. Li, M. Yamamoto, K. Hozumi, C. Y. Yatini, P. Supnithi, “On the solar activity dependence of midnight equatorial plasma bubbles during June solstice periods,” Earth and Planetary Physics, vol. 5, no. 4, pp. 1–9, 2021. https://doi.org/10.26464/epp2021039
  2. 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. https://doi.org/10.1186/s40623-021-01427-y. PDF
  3. P. Kenpankho, A. Chaichana, K. Trachu, P. Supnithi, K. Hozumi, “Real-time GPS receiver bias estimation,” Advances in Space Research, 2021, https://doi.org/10.1016/j.asr.2021.01.032.
  4. E. Timoçin, H. Temuçin, S. Inyurt, M. Shah, and P. Jamjareegulgarn, “Assessment of improvement of the IRI model for foF2 variability over three latitudes in different hemispheres during low and high solar activities,” Acta Astronautica, vol. 180, pp. 305-316, 2021.
  5. I. Sarudin, N.S.A Hamid, M. Abdullah, S.M. Buhari, K. Shiokawa, Y. Otsuka, K. Hozumi, P. Jamjareegulgarn, “Influence of Zonal Wind Velocity Variation on Equatorial Plasma Bubble Occurrences Over Southeast Asia,” Journal of Geophysical Research: Space Physics, vol. 126, no. 5, 2021.
  6. M. Shah, M. Ehsan, A. Abbas, A. Ahmed and P. Jamjareegulgarn, “Possible Thermal Anomalies Associated with Global Terrestrial Earthquakes During 2000-2019 Based on MODIS-LST,” IEEE Geoscience and Remote Sensing Letters, pp.1-5, 2021. https://doi.org/10.1109/LGRS.2021.3084930.
  7. A. Hafeez, M. Shah, M. Ehsan, P. Jamjareegulgarn, et al., “Possible atmosphere and ionospheric anomalies of the 2019 Pakistan earthquake using statistical and machine learning procedures on MODIS LST, GPS TEC and GIM TEC,” IEEE J. Sel. Top. Appl. Earth Obs. Remote Sens., 2021. https://doi.org/10.1109/JSTARS.2021.3119382.
  8. H.W. Seok, K. Ansari, C. Panachai, P. Jamjareegulgarn, “Individual performance of multi-GNSS signals in the determination of STEC over Thailand with the applicability of Klobuchar model,” Advances in Space Research, 2021. https://doi.org/10.1016/j.asr.2021.11.025.
  9. J. F. D. Oliveira-Júnior, et al., “Urban rainfall in the Capitals of Brazil: Variability, trend, and wavelet analysis,” Atmospheric Research, 105984, 2021. https://doi.org/10.1016/j.atmosres.2021.105984
  10. J. F. de Oliveira-Júnior, G. de Gois, L. J. de Lima Silva, E. de O. Souza, A. M. da R. F. Jardim, M. V. da Silva, M. Shah, P. Jamjareegulgarn, “Wet and dry periods in the state of Alagoas (Northeast Brazil) via Standardized Precipitation Index,” Journal of Atmospheric and Solar-Terrestrial Physics 224 (105746), 2021.
  11. 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,” Earth, Planets and Space, vol. 73, Art. no. 10, 2021. https://doi.org/10.1186/s40623-020-01350-8
2020 (9)
  1. K. Ansari, S.K. Panda, P. Jamjareegulgarn, “Singular Spectrum Analysis of Ionospheric TEC Variations over Nepal during the low Solar Activity from GPS Network Observables,” Act Astronautica, vol. 169, pp. 216-223, 2020.
  2. P. Jamjareegulgarn, P. Supnithi, P. Kenpankho, N. Wichaipanich, and C. Nayak, “Improving the modeling of bottomside thickness parameters over midlatitudes and high latitudes,” Adv. Space Res., vol. 65, no. 3, pp. 909-932, 2020.
  3. P. Jamjareegulgarn, “Assessment of bottomside thickness parameters over magnetic equator and low latitudes during high solar activity of solar cycle 24,” Acta Astronautica, vol. 177, pp. 182191, 2020.
  4. E. Timoçin, S. Inyurt, H. Temuçin, K. Ansari, P. Jamjareegulgarn, “Investigation of equatorial plasma bubble irregularities under different geomagnetic conditions during the equinoxes and the occurrence of plasma bubble suppression,” Acta Astronautica, vol. 177, pp. 341-350, 2020.
  5. P. Jamjareegulgarn, K. Ansari, and A. Ameer, “Empirical Orthogonal Function Modelling of Total Electron Content over Nepal and Comparison with Global Ionospheric Models,” Acta Astronautica, vol. 177, pp. 497-507, 2020.
  6. Sarun Duangsuwan and Punyawi Jamjareekulgarn, “Development of Drone Real-time Air Pollution Monitoring for Mobile Smart Sensing in Areas with Poor Accessibility,” Sensors and Materials 32 (2), pp. 511–520, 2020.
  7. J. Budtho, P. Supnithi, S. Saito, “Single-Frequency Time-Step Ionospheric Delay Gradient Estimation at Low-Latitude Stations,” IEEE Access, vol.8, pp. 201516-201526, 2020.
  8. P. Jamjareegulgarn, P. Supnithi, et al., “Improving the modeling of bottomside thickness parameters over midlatitudes and high latitudes,” Advances in Space Research, 2020.
  9. P. Thammavongsy et al., “Spread-F prediction model for the equatorial Chumphon station, Thailand,” Advances in Space Research, 2020. https://doi.org/10.1016/j.asr.2019.09.040
2019 (1)
  1. A. O. Afolayan, M. S. J. Singh, M. Abdullah, S. M. Buhari, T. Yokoyama, P. Supnithi, “Observation of seasonal asymmetry in the range spread F occurrence at different longitudes during low and moderate solar activity,” Annales Geophysicae, vol. 37, no. 4, pp. 733–745, 2019. https://doi.org/10.5194/angeo-37-733-2019
2018 (2)
  1. J. Budtho, P. Supnithi, S. Saito, “Analysis of quiet time vertical ionospheric delay gradients around Suvarnabhumi Airport, Thailand,” Radio Science, 2018. https://doi.org/10.1029/2018RS006606. PDF
  2. T. Tsugawa, M. Nishioka, M. Ishii, K. Hozumi, S. Saito, A. Shinbori, Y. Otsuka, A. Saito, S.M. Buhari, M. Abdullah, P. Supnithi, “Total electron content observations by dense regional and worldwide international networks of GNSS,” Journal of Disaster Research, Vol.13, No.3, 2018, pp. 535-545. PDF
2017 (4)
  1. C. Jiang, G. Yang, J. Liu, T. Yokoyama, T. Liu, T. Lan, C. Zhou, Y. Zhang, Z. Zhao, T. Komolmis, P. Supnithi, C. Y. Yatini, “Equatorial and low‐latitude ionospheric response to the 17–18 March 2015 great storm over Southeast Asia longitude sector,” Journal of Geophysical Research Space Physics, vol. 122, no. 5, pp. 5756–5767, 2017. https://doi.org/10.1002/2017ja024134
  2. 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.
  3. P. Jamjareegulgarn, P. Supnithi, K. Watthanasangmechai, T. Tsugawa, “Study of ionospheric topside variations based on NeQuick topside formulation and comparisons with the IRI-2012 model at equatorial latitude station, Chumphon, Thailand,” Advances in Space Research, vol. 60, no.2, July 2017, pp. 206-221. PDF
  4. 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
2016 (8)
  1. B. R. Kalita, R. Hazarika, G. Kakoti, P. K. Bhuyan, D. Chakrabarty, G. K. Seemala, K. Wang, S. K. Sharma, T. Yokoyama, P. Supnithi, T. Komolmis, C. Y. Yatini et al., “Conjugate hemisphere ionospheric response to the St. Patrick’s Day storms of 2013 and 2015 in the 100°E longitude sector,” Journal of Geophysical Research Space Physics, vol. 121, no. 11, 2016. https://doi.org/10.1002/2016ja023119
  2. S. Jongsintawee, S. Rungraengwajiake, P. Supnithi, C. Panachart, “Comparison of GPS Positioning Accuracy Using Klobuchar Model and IGS TEC Model in Thailand,” KMITL-Science and Technology Journal, vol. 16, no. 1, 2016.
  3. C. Nayak, L. Tsai, S. Su, I. Galkin, A.T.K. Tan, E. Nofri, and P. Jamjareegulgarn, “Peculiar features of the low-latitude and midlatitude ionospheric response to the St. Patrick’s Day geomagnetic storm of 17 March 2015,” Journal of Geophysical Research: Space Physics, vol. 121, no. 8, pp. 7941–7960, 2016.
  4. 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, https://doi.org/10.1029/2018JA025612. Link
  5. 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. PDF
  6. 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, PDF.
  7. 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 the specific local time of postmidnight enhancement peaks in F layer electron density at low latitudes: A case study,” Journal of Geophysical Research: Space Physics, vol. 121, no. 4, pp. 3476–3483, 2016. https://doi.org/10.1002/2015JA022319
  8. K. Watthanasangmechai, M. Yamamoto, A. Saito, R. Tsunoda, T. Yokoyama, P. Supnithi, M. Ishii, C. Yatini, “Predawn plasma bubble cluster observed in Southeast Asia,” Journal of Geophysical Research: Space Physics, vol. 121, no. 6, pp. 5868–5879, 2016. https://doi.org/10.1002/2015JA022069
2015 (6)
  1. S. Rungraengwajiake, P. Supnithi, “3-D Ionospheric Plasma Bubble Model for Ground-Based Augmentation System,” Applied Mechanics and Materials, vol. 781, pp. 102–105, 2015. https://doi.org/10.4028/www.scientific.net/amm.781.102
  2. 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, https://doi.org/10.1002/2015JA021932. PDF
  3. S. Rungraengwajiake, P. Supnithi, S. Saito, N. Siansawasdi, A. Saekow, “Ionospheric delay gradient monitoring for GBAS by GPS stations near Suvarnabhumi airport, Thailand,” Radio Science, 2015. PDF
  4. A. Bumrungkit, S. Rungraengwajiake, P. Supnithi, A. Saekow, “Analysis of Ionospheric Irregularity Observed near Suvarnabhumi International Airport in Thailand,” Applied Mechanics and Materials, Vol. 781, pp. 85-88, Aug. 2015.
  5. 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. PDF
  6. 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, https://doi.org/10.1016/j.asr.2014.10.003, Vol. 55, No.8, Apr 2015, pp. 2139-2147. PDF
2014 (2)
  1. 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, https://doi.org/10.1002/2014JA020215 PDF
  2. 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 (5)
  1. P. Kenpankho, P. Supnithi, and T. Nagatsuma, “Comparison of observed TEC values with IRI-2007 TEC and IRI-2007 TEC with optional foF2 measurements predictions at an equatorial region, Chumphon, Thailand,” Journal of Advances in Space Research, vol.52, no.10, Nov. 2013, pp. 1820-1826. PDF
  2. S. Rungraengwajiake, P. Supnithi, T. Tsugawa, T. Nagatsuma and T. Maruyama, “The variation of equatorial spread-F occurrences observed by ionosondes at Thailand longitude sector,” Journal of Advances in Space Research, vol. 52, no. 10, Nov. 2013, pp. 1809-1819. https://doi.org/10.1016/j.asr.2013.07.041 PDF
  3. 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. download
  4. 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, https://doi.org/10.5194/angeo-31-153-2013, 2013. PDF
  5. 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)
2012 (2)
  1. 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, https://doi.org/10.1029/2012JA017692, vol. 117, no.A8, Aug. 2012. PDF
  2. K. Watthanasangmechai, P. Supnithi, S. Lerkvaranyu, T. Maruyama, “TEC prediction with neural network for equatorial latitude station in Thailand,” Earth Planets Space, vol. 64, no.6, pp. 473-483, June 2012. download
2011 (3)
  1. P. Kenpankho, P. Supnithi, T. Tsugawa and T. Maruyama, “Variation of ionospheric slab thickness observations at Chumphon equatorial magnetic location,” Earth Planets Space, vol. 63, pp. 359-364, June 2011. PDF
  2. P. Kenpankho, P. Supnithi, T. Tsugawa and T. Maruyama, “Comparison of GPS TEC measurements with IRI TEC prediction at the equatorial latitude station, Chumphon, Thailand,” Earth Planets Space, vol. 63, pp. 365-370, June 2011. PDF
  3. 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. download
2010 (1)
  1. 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. PDF
2009 (3)
  1. L.M.M. Myint, P. Supnithi, P. Tantasawasd, “An Inter-Track Interference Mitigation Technique Using partial ITI Estimation in Patterned Media Storage,” IEEE Transaction on Magnetics, vol. 5, no. 10, October 2009. PDF
  2. 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. PDF
  3. 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. PDF
2008 (1)
  1. 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 PDF
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