All Stories

  1. A study of the ionospheric response during intense geomagnetic storms over the Indian low-latitude region during the period 2017–2023

    Article • Advances in Space Research, September 2025, Elsevier

    Dr Gopi K Seemala

  2. Overestimation of the Bottom‐Side Ionospheric TEC in the IRI Model Over Low Latitude Regions

    Article • Journal of Geophysical Research Space Physics, June 2025, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  3. Role of GNSS-derived TEC for Space Weather Studies

    Article • April 2025, Taylor & Francis

    Dr Gopi K Seemala

  4. The Gridded Geomagnetic Field of India with MATLAB GUI

    Article • Data Science Journal, February 2025, Ubiquity Press, Ltd.

    Dr Gopi K Seemala

  5. Evidence and Causes of an Unusual Super Plasma Bubble Occurrence During Weak Geomagnetic Conditions Over Europe

    Article • December 2024, Wiley

    Dr Gopi K Seemala

  6. Super‐Intense Geomagnetic Storm on 10–11 May 2024: Possible Mechanisms and Impacts

    Article • Space Weather, November 2024, American Geophysical Union (AGU)

    Professor Veenadhari Bhaskara, Dr Gopi K Seemala

  7. Evidence and Causes of an Unusual Super Plasma Bubble Occurrence During Weak Geomagnetic Conditions Over Europe

    Article • November 2024, Wiley

    Dr Gopi K Seemala

  8. Empirical Model of Equatorial ElectroJet (EEJ) Using Long‐Term Observations From the Indian Sector

    Article • Space Weather, July 2024, American Geophysical Union (AGU)

    Potula Sree Sree Brahmanandam, Dr Gopi K Seemala

  9. Ionospheric response to PPEF events in the Indian region during high and low intense geomagnetic storms

    Article • Advances in Space Research, April 2024, Elsevier

    Dr Gopi K Seemala

  10. Machine learning approach for detection of plasma depletions from TEC

    Article • Advances in Space Research, April 2024, Elsevier

    Dr Gopi K Seemala

  11. ROTI and scintillation index correlation under quiet and disturbed periods over an Indian low latitude station, Waltair

    Article • Advances in Space Research, April 2024, Elsevier

    Dr Gopi K Seemala

  12. Absence of High Frequency Echoes From Ionosondes During the 23–25 April 2023 Geomagnetic Storm; What Happened?

    Article • Journal of Geophysical Research Space Physics, March 2024, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  13. Climatology of quiet time geomagnetic field variations at two locations in Antarctica

    Article • Polar Science, December 2023, Elsevier

    Dr Gopi K Seemala

  14. Seasonal and solar activity dependence of TEC over Bharati station, Antarctica

    Article • Polar Science, December 2023, Elsevier

    Dr Gopi K Seemala

  15. Simultaneous observations of atmospheric vertical potential gradient from coastal Antarctic stations Bharati and Maitri

    Article • Polar Science, December 2023, Elsevier

    Dr Gopi K Seemala

  16. The Global Representativeness of Fair‐Weather Atmospheric Electricity Parameters From the Coastal Station Maitri, Antarctica

    Article • Journal of Geophysical Research Atmospheres, April 2023, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  17. A Case of Anomalous Electric Field Perturbations in the Equatorial Ionosphere During Postsunset Hours: Insights

    Article • Journal of Geophysical Research Space Physics, February 2023, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  18. 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

    Article • Remote Sensing, January 2022, MDPI AG

    Dr Gopi K Seemala

  19. On the latitudinal variation in OI 630.0 nm dayglow emissions in response to the equatorial electrodynamic processes and neutral winds

    Article • Advances in Space Research, January 2022, Elsevier

    Dr Gopi K Seemala

  20. Reckoning ionospheric scintillation S4 from ROTI over Indian region

    Article • Advances in Space Research, January 2022, Elsevier

    Dr Gopi K Seemala

  21. Responses of various types of antennas to the globally distributed air-earth current monitored at Maitri, Antarctica

    Article • Polar Science, December 2021, Elsevier

    Dr Gopi K Seemala

  22. New results of ionospheric total electron content measurements from a low-cost global navigation satellite system receiver and comparisons with other data sources

    Article • Advances in Space Research, November 2021, Elsevier

    Dr Gopi K Seemala

  23. An experimental investigation into the possible connections between the zonal neutral wind speeds and equatorial plasma bubble drift velocities over the African equatorial region

    Article • Journal of Atmospheric and Solar-Terrestrial Physics, September 2021, Elsevier

    Dr Gopi K Seemala

  24. Interhemispheric comparison of the ionosphere and plasmasphere total electron content using GPS, radio occultation and ionosonde observations

    Article • Advances in Space Research, September 2021, Elsevier

    Dr Gopi K Seemala

  25. GPS TEC variations under quiet and disturbed geomagnetic conditions during the descending phase of 24th solar cycle over the Indian equatorial and low latitude regions

    Article • Advances in Space Research, August 2021, Elsevier

    Dr Gopi K Seemala

  26. Magnetic Conjugacy of Pc1 Waves and Isolated Proton Precipitation at Subauroral Latitudes: Importance of Ionosphere as Intensity Modulation Region

    Article • Geophysical Research Letters, March 2021, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  27. Selection of an optimal algorithm for outlier detection in GNSS time series

    Article • March 2021, Copernicus GmbH

    Dr Gopi K Seemala

  28. Evidence for the Significant Differences in Response Times of Equatorial Ionization Anomaly Crest Corresponding to Plasma Fountains During Daytime and Post‐Sunset Hours

    Article • Journal of Geophysical Research Space Physics, March 2021, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  29. Ground‐Based GNSS and C/NOFS Observations of Ionospheric Irregularities Over Africa: A Case Study of the 2013 St. Patrick’s Day Geomagnetic Storm

    Article • Space Weather, February 2021, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  30. Ionospheric disturbances in a large area of the terrestrial globe by two strong solar flares of September 6, 2017, the strongest space weather events in the last decade

    Article • Advances in Space Research, October 2020, Elsevier

    Dr Gopi K Seemala

  31. Daily and Monthly Variations of the Equatorial Ionization Anomaly (EIA) Over the Brazilian Sector During the Descending Phase of the Solar Cycle 24

    Article • Journal of Geophysical Research Space Physics, September 2020, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  32. Storm‐Time Modeling of the African Regional Ionospheric Total Electron Content Using Artificial Neural Networks

    Article • Space Weather, September 2020, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  33. Correction to: Medium-scale traveling ionospheric disturbances by three-dimensional ionospheric GPS tomography

    Article • Earth Planets and Space, August 2020, Springer Science + Business Media

    Dr Gopi K Seemala

  34. Characterization of ionospheric total electron content data using wavelet-based multifractal formalism

    Article • Chaos Solitons & Fractals, May 2020, Elsevier

    Dr Gopi K Seemala

  35. A Neural Network‐Based Ionospheric Model Over Africa From Constellation Observing System for Meteorology, Ionosphere, and Climate and Ground Global Positioning System Observations

    Article • Journal of Geophysical Research Space Physics, December 2019, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  36. Equatorial and low-latitude positive ionospheric phases due to moderate geomagnetic storm during high solar activity in January 2013

    Article • Advances in Space Research, August 2019, Elsevier

    Dr Gopi K Seemala

  37. L-band scintillation and TEC variations on St. Patrick’s Day storm of 17 March 2015 over Indian longitudes using GPS and GLONASS observations

    Article • Journal of Earth System Science, March 2019, Springer Science + Business Media

    Dr Gopi K Seemala

  38. Reconstruction of Storm‐Time Total Electron Content Using Ionospheric Tomography and Artificial Neural Networks: A Comparative Study Over the African Region

    Article • Radio Science, November 2018, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  39. A Hybrid Regression-Neural Network (HR-NN) Method for Forecasting the Solar Activity

    Article • Space Weather, September 2018, American Geophysical Union (AGU)

    Dr Daniel Izuikedinachi Okoh, Dr Gopi K Seemala

  40. Assessment of the NeQuick-2 and IRI-Plas 2017 models using global and long-term GNSS measurements

    Article • Journal of Atmospheric and Solar-Terrestrial Physics, May 2018, Elsevier

    Dr Gopi K Seemala

  41. Electrodynamic disturbances in the Brazilian equatorial and low-latitude ionosphere on St. Patrick's Day storm of 17 March 2015

    Article • Journal of Geophysical Research Space Physics, April 2017, American Geophysical Union (AGU)

    Dr Paulo Roberto Fagundes, Dr Gopi K Seemala

  42. Effects of St.Patrick's day geomagnetic storm in East Aasian longitude 100E

    Article • Journal of Geophysical Research Space Physics, November 2016, American Geophysical Union (AGU)

    Mr. Bitap kalita, Dr Gopi K Seemala, Pradip Bhuyan

  43. Multifractal detrended fluctuation analysis of ionospheric total electron content data during solar minimum and maximum

    Article • Journal of Atmospheric and Solar-Terrestrial Physics, November 2016, Elsevier

    Dr Gopi K Seemala

  44. Solar quiet current response in the African sector due to a 2009 sudden stratospheric warming event

    Article • Journal of Geophysical Research Space Physics, August 2016, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  45. Simultaneous storm time equatorward and poleward large-scale TIDs on a global scale

    Article • Geophysical Research Letters, July 2016, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  46. Ionospheric Plasma Response to M w 8.3 Chile Illapel Earthquake on September 16, 2015

    Article • Pure and Applied Geophysics, April 2016, Springer Science + Business Media

    Dr Gopi K Seemala

  47. Medium-scale traveling ionospheric disturbances by three-dimensional ionospheric GPS tomography

    Article • Earth Planets and Space, February 2016, Springer Science + Business Media

    Dr Gopi K Seemala

  48. Two-mode ionospheric response and Rayleigh wave group velocity distribution reckoned from GPS measurement following Mw 7.8 Nepal earthquake on 25 April 2015

    Article • Journal of Geophysical Research Space Physics, August 2015, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  49. Climatology of GPS amplitude scintillations over equatorial Africa during the minimum and ascending phases of solar cycle 24

    Article • Astrophysics and Space Science, April 2015, Springer Science + Business Media

    Dr Gopi K Seemala, Dr. Emeka Emmanuel Okoro

  50. Latitudinal variation in the occurrence of GPS L-band scintillations associated with the day-to-day changes in TEC, h′F and the E×B drift velocity and their impact on GPS satellite signals

    Article • Journal of Earth System Science, April 2015, Springer Science + Business Media

    Dr Gopi K Seemala

  51. On the performance of the IRI-2012 and NeQuick2 models during the increasing phase of the unusual 24th solar cycle in the Brazilian equatorial and low-latitude sectors

    Article • Journal of Geophysical Research Space Physics, June 2014, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  52. 3D Tomography of ionosphere

    Article • Journal of Geophysical Research Space Physics, April 2014, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  53. Characterization of GNSS scintillations over Lagos, Nigeria during the minimum and ascending phases (2009–2011) of solar cycle 24

    Article • Advances in Space Research, January 2014, Elsevier

    Dr Gopi K Seemala

  54. Comparison of equatorial GPS-TEC observations over an African station and an American station during the minimum and ascending phases of solar cycle 24

    Article • Annales Geophysicae, November 2013, Copernicus GmbH

    Dr Gopi K Seemala

  55. A comparative study of TEC response for the African equatorial and mid-latitudes during storm conditions

    Article • Journal of Atmospheric and Solar-Terrestrial Physics, September 2013, Elsevier

    Dr Gopi K Seemala

  56. Simultaneous observations of ionospheric irregularities in the African low-latitude region

    Article • Journal of Atmospheric and Solar-Terrestrial Physics, May 2013, Elsevier

    Dr Gopi K Seemala

  57. Equatorial plasma bubbles and L-band scintillations in Africa during solar minimum

    Article • Annales Geophysicae, April 2012, Copernicus GmbH

    Dr Gopi K Seemala

  58. GPS-TEC variations during low solar activity period (2007–2009) at Indian low latitude stations

    Article • Astrophysics and Space Science, January 2012, Springer Science + Business Media

    Dr Gopi K Seemala

  59. Statistics of total electron content depletions observed over the South American continent for the year 2008

    Article • Radio Science, October 2011, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  60. Geomagnetic storm effects on GPS based navigation

    Article • Annales Geophysicae, May 2009, Copernicus GmbH

    Dr Gopi K Seemala

  61. NeQuick bottomside analysis at low latitudes

    Article • Journal of Atmospheric and Solar-Terrestrial Physics, December 2008, Elsevier

    Dr Gopi K Seemala, Dr Pierdavide Coïsson

  62. Local time dependent response of postsunset ESF during geomagnetic storms

    Article • Journal of Geophysical Research Atmospheres, July 2008, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  63. Spatial distribution of ionization in the equatorial and low-latitude ionosphere of the Indian sector and its effect on the pierce point altitude for GPS applications during low solar activity periods

    Article • Journal of Geophysical Research Atmospheres, May 2007, American Geophysical Union (AGU)

    Dr Gopi K Seemala

  64. Temporal and spatial variations in TEC using simultaneous measurements from the Indian GPS network of receivers during the low solar activity period of 2004–2005

    Article • Annales Geophysicae, December 2006, Copernicus GmbH

    Dr Gopi K Seemala

  65. Features of additional stratification in ionospheric F 2 layer observed for half a solar cycle over Indian low latitudes

    Article • Journal of Geophysical Research Atmospheres, April 2005, American Geophysical Union (AGU)

    Dr Gopi K Seemala, Potula Sree Sree Brahmanandam