Prof. Kuldeep Pandey
Indian Institute of Geomagnetism (IIG)
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Research Interests
Quiet-time Ionospheric Electrodynamics: Low-latitude/equatorial electric fields, currents, plasma distribution, irregularities
Space Weather Effects on Ionosphere: Prompt Penetration, Substorm, Disturbance Dynamo
Ionospheric Radio: HF Radio Propagation, Polarization, Scintillations, HamSCI
Professional Experience
2026 Sep - Present Professor-E, Indian Institute of Geomagnetism, India
2024 Apr - 2026 Aug Post-Doctoral Research Associate, New Jersey Institute of Technology, USA
2020 Nov - 2024 Mar Post-Doctoral Fellow, University of Saskatchewan, Canada
2018 Sep - 2020 Nov Post-Doctoral Fellow, Physical Research Laboratory, India
PhD thesis title ‘Investigations on Ionospheric Electrodynamics Over Low Latitudes in Indian Sector’
from Physical Research Laboratory, India (degree awarded by IIT-Gandhinagar) during 2013 Jul - 2018 Aug
Publications: 26 (click for details)
Arranged in Reverse Chronological Order (from Newest to Oldest)
Karan, D.K., Eastes, R.W., Pandey, K., Wang, W., Martinis, C.R., Daniell, R.E., and Gan, Q. (2026). Post-sunset Merging of Equatorial Ionization Anomaly Crests into a Single Peak over ~35° Longitude During the 19 January 2026 Geomagnetic Superstorm. Geophysical Research Letters, http://dx.doi.org/10.1029/2026GL124019
Singh, R., Scipion, D.E., Pandey, K., Kuyeng, K., Patilongo, P.J.C., Sánchez, Jara, C. De La (2026). Evidence of Strong Electric Fields at the Equatorial Ionosphere Driven by a Substorm in the Absence of Geomagnetic Storm. Journal of Geophysical Research: Space Physics, https://doi.org/10.1029/2026JA035172
Kumar, A., Chakrabarty, D., Rout, D., Pandey, K., Fejer, B.G., Reeves, G.D., Sripathi, S., Fagundes, P.R., Yadav, A.K. (2025). Disproportionate Effects of Overshielding Electric Field over Equatorial Ionosphere: Insights from Two Case Studies. Advances in Space Research, https://doi.org/10.1016/j.asr.2025.12.020
Kalafatoglu Eyiguler, E. C., Danskin, D. W., Hussey, G. C., Gillies, R. G., Burrell, A. G., Coster, A. J., Pandey, K., & Yau, A. W. (2025). Ionospheric density variations observed by the Radio Receiver Instrument on e-POP/Swarm-E. Journal of Geophysical Research: Space Physics, 130, e2025JA034143, https://doi.org/10.1029/2025JA034143
[Editorial] Singh, R., Kumar, S. and Pandey, K. (2025). Space weather: magnetosphere ionosphere thermosphere (M-I-T) coupling. Front. Astron. Space Sci., 12, https://doi.org/10.3389/fspas.2025.1632922
Kalafatoglu Eyiguler, E. C., Pandey, K., Hussey, G. C., Danskin, D. W., Gillies, R. G., & Yau, A. W. (2025). Spatial variation of polarization ellipticity for transionospheric HF radio waves observed by RRI on e-POP/Swarm-E. Journal of Geophysical Research: Space Physics, 130, e2024JA032822. https://doi.org/10.1029/2024JA032822
Kunduri, B. S. R., Baker, J. B. H., Ruohoniemi, J. M., Thomas, E. G., Huba, J. D., Emmons, D. J., ..., Perry, G.W., & Pandey, K. (2024). HF radar observations and modeling of the impact of the 8 April 2024 total solar eclipse on the ionosphere-thermosphere system. Geophysical Research Letters, 51, e2024GL112484. https://doi.org/10.1029/2024GL112484
Pandey, K., Kalafatoglu Eyiguler, E. C., Gillies, R. G., Danskin, D. W., Billett, D. D., Yau, A. W., & Hussey, G. C. (2024). Differential delay of ordinary and extraordinary modes of transionospheric radio waves. Journal of Geophysical Research: Space Physics, 129, e2024JA032798. https://doi.org/10.1029/2024JA032798
Pandey, K., Kalafatoglu Eyiguler, E. C., Hussey, G. C., Danskin, D. W., Gillies, R. G., & Yau, A. W. (2024). The ellipticity of high frequency transionospheric radio waves. Journal of Geophysical Research: Space Physics, 129, e2023JA032022. https://doi.org/10.1029/2023JA032022
Billett, D. D., Sartipzadeh, K., Ivarsen, M. F., Iorfida, E., Doornbos, E., Kalafatoglu Eyiguler, E. C., Pandey, K., & McWilliams, K.A. (2024). The 2022 Starlink geomagnetic storms: Global thermospheric response to a high-latitude ionospheric driver. Space Weather, 22, e2023SW003748. https://doi.org/10.1029/2023SW003748
Rout, D., Patra, S., Kumar, S., Chakrabarty, D., Reeves, G. D., Stolle, C., Pandey, K., Chakraborty, S., & Spencer, S.E. (2023). The growth of ring current/SYM-H under northward IMF Bz conditions present during the 21–22 January 2005 geomagnetic storm. Space Weather, 21, e2023SW003489. https://doi.org/10.1029/2023SW003489
Kalafatoglu Eyiguler, E. C., Holley, W., Howarth, A. D., Danskin, D. W., Pandey, K., Martin, C. J., Gillies, R. G., Yau, A. W. & Hussey, G.C. (2023), cavsiopy: a Python package to calculate and visualize spacecraft instrument orientation. Frontiers in Astronomy and Space Sciences, 10, 1278794. https://doi.org/10.3389/fspas.2023.1278794
Kalafatoglu Eyiguler, E. C., Pandey, K., Howarth, A. D., Holley, W., Danskin, D. W., Hussey, G. C., Gillies, R.G., & Yau, A. W. (2023). Effect of spacecraft attitude on radio wave polarization measurements for the radio Receiver instrument on Swarm-E, Advances in Space Research, 72 (11), 4836-4855. https://doi.org/10.1016/j.asr.2023.09.001
Pandey, K., Chakrabarty, D., Kumar, A., Bhardwaj, A., Biswal, S., Hussey, G. C., & Yadav, A. K. (2023). Characteristics of X-class flares of solar cycles 23 and 24 in X-ray and EUV bands, Advances in Space Research, 71 (12), 5438-5452, https://doi.org/10.1016/j.asr.2023.02.022
Pandey, K., Kalafatoglu Eyiguler, E. C., Gillies, R. G., Hussey, G. C., Danskin, D. W., & Yau, A. W. (2022). Polarization characteristics of a single mode radio wave traversing through the ionosphere: A unique observation from the RRI on ePOP/SWARM-E. Journal of Geophysical Research: Space Physics, 127, e2022JA030684. https://doi.org/10.1029/2022JA030684
Rout, D., Singh, R., Pandey, K., Pant, T. K., Stolle, C., Chakrabarty, D., Thampi, S., & Bag, T. (2022). Evidence for presence of a global quasi-resonant mode of oscillations during high-intensity long-duration continuous AE activity (HILDCAA) events. Earth, Planets and Space: Express Letter, 74(1), 91. https://doi.org/10.1186/s40623-022-01642-1
Kumar, A., Chakrabarty, D., Pandey, K., & Yadav, A. K. (2022). Solar flux dependence of post-sunset enhancement in vertical total electron content over the crest region of equatorial ionization anomaly. Journal of Geophysical Research: Space Physics, 127, e2021JA030156. https://doi.org/10.1029/2021JA030156
Pandey, K., Sekar, R., Chakrabarty, D., & Anandarao, B. G. (2021). Investigation on longitudinal and decadal variations of the equatorial electrojet using a physical model. Advances in Space Research, 68(1), 182-200. https://doi.org/10.1016/j.asr.2021.02.040
Kumar, A., Chakrabarty, D., Pandey, K., Fejer, B. G., Sunda, S., Seemala, G. K., et al. (2021). Evidence for the significant differences in response times of equatorial ionization anomaly crest corresponding to plasma fountains during daytime and post-sunset hours. Journal of Geophysical Research: Space Physics, 126, e2020JA028628. https://doi.org/10.1029/2020JA028628
Pandey, K., & Gupta, S. P. (2020). Altitude of Two-Stream Irregularities in Equatorial E Region Using Sounding Rocket Experiments From Thumba. Journal of Geophysical Research: Space Physics, 125, e2019JA027195. https://doi.org/10.1029/2019JA027195
Rout, D., Pandey, K., Chakrabarty, D., Sekar, R., & Lu, X. (2019). Significant electric field perturbations in low latitude ionosphere due to the passage of two consecutive ICMEs during 6–8 September 2017. Journal of Geophysical Research: Space Physics, 124, 9494–9510. https://doi.org/10.1029/2019JA027133
Pandey, K., Chakrabarty, D., & Sekar, R. (2018). Critical evaluation of the impact of disturbance dynamo on equatorial ionosphere during daytime. Journal of Geophysical Research: Space Physics, 123, 9762–9774. https://doi.org/10.1029/2018JA025686
Pandey, K., Sekar, R., Anandarao, B. G., Gupta, S. P., & Chakrabarty, D. (2018). On the occurrence of afternoon counter electrojet over Indian longitudes during June solstice in solar minimum. Journal of Geophysical Research: Space Physics, 123, 2204–2214. https://doi.org/10.1002/2017JA024725
Rout, D., Chakrabarty, D., Janardhan, P., Sekar, R., Maniya, V., & Pandey, K. (2017). Solar wind flow angle and geoeffectiveness of corotating interaction regions: First results, Geophysical Research Letters, 44, 4532–4539. https://doi.org/10.1002/2017GL073038
Pandey, K., Sekar, R., Gupta, S. P., Chakrabarty, D., & Anandarao, B. G. (2017). Comparison of quiet time vertical plasma drifts with global empirical models over the Indian sector: Some insights. Journal of Atmospheric and Solar-Terrestrial Physics, 157, 42-54. https://doi.org/10.1016/j.jastp.2017.03.012
Pandey, K., Sekar, R., Anandarao, B. G., Gupta, S. P., & Chakrabarty, D. (2016). Estimation of nighttime dip-equatorial E-region current density using measurements and models. Journal of Atmospheric and Solar-Terrestrial Physics, 146, 160-170. https://doi.org/10.1016/j.jastp.2016.06.002
Conference Publications/Non-Peer Reviewed: 7 (click here for details)
Presentations at Conferences/Workshops: 36 (click for details)
Arranged in Reverse Chronological Order (from Newest to Oldest)
Upcoming
[Oral] Pandey, K., Perry, G.W., Frissell, N.A., Kunduri, B.S.R., Emmons, D.J., Themens, D.R., Huba, J.D., Chartier, A.T., and HamSCI Community, "HF Radio Probing of Ionospheric Response to the 2024 Total Solar Eclipse", URSI-RCRS, IIG, Mumbai, India, 17 - 20 November 2026
Past
Past
[Poster] Pandey, K., Perry, G.W., Kunduri, B.S.R., Emmons, D.J., Themens, D.R., Huba, J.D., Chartier, A.T., "Ionospheric Plasma Density Variations During April 2024 Total Solar Eclipse: Observations & Modeling", CEDAR Workshop, Des Moines, Iowa, US, 21-26 June 2026
[Poster] Pandey, K., Perry, G.W., Frissell, N.A., Atkinson, T., Engelke, W., Huba, J.D., West, M.L., ..., and HamSCI Community, "HamSCI Solar Eclipse QSO Party Results", CEDAR Workshop, Des Moines, Iowa, US, 21-26 June 2026
[Oral] Pandey, K., Perry, G.W., Frissell, N.A., Kunduri, B.S.R., Emmons, D.J., Themens, D.R., Huba, J.D., Chartier, A.T., and the HamSCI Community, "HF Radio Observations of the April 2024 Total Solar Eclipse", Ionospheric Effect Symposium, Alexandria, Virginia, US, 19-21 May 2026
[Oral] "Solar Eclipse Through Ham Radio: What the Bands Revealed", Hamvention, Dayton - Ohio, US, 15-17 May 2026
[Invited Tutorial] "Solar Eclipse Through Ham Radio: What the Bands Revealed", HamSCI Workshop, New Britain, Connecticut, US, March 14-15, 2026
[Poster] Pandey, K., Perry, G.W., Kunduri, B.S.R., Emmons, D.J., Themens, D.R., Huba, J.D., Chartier, A.T., "Ionospheric Plasma Density Variations During the April 2024 Total Solar Eclipse: Observations and Modeling", AGU Meeting, New Orleans, Louisiana, US, 15-19 December 2025
[Poster] Pandey, K., Perry, G.W., Frissell, N.A., Atkinson, T., Engelke, W., Huba, J.D., West, M.L., ..., and HamSCI Community, "Ham Radio Investigations of Ionospheric Changes During the April 2024 Total Solar Eclipse", AGU Meeting, New Orleans, Louisiana, US, 15-19 December 2025
[Oral] Pandey, K., Perry, G.W., Frissell, N.A., Kunduri, B.S.R., Emmons, D.J., Themens, D.R., Huba, J.D., Chartier, A.T., and the HamSCI Community, "Ionospheric Impacts of the April 2024 Total Solar Eclipse", Joint CEDAR / GEM Workshop, Des Moines, Iowa, US, 22-27 June 2025
[Oral] Pandey, K., Perry, G.W.*, Frissell, N.A., Emmons, D., Huba, J. D., Themens, D., Kunduri, B., Chartier, A., and HamSCI Community, "April 2024 Solar Eclipse Effects on Ionospheric Density and Radio Propagation", DASP Workshop - Canadian Association of Physicists (CAP) Congress, Saskatchewan, Canada, 8-13 June 2025
[Oral] Pandey, K., Perry, G.W., Frissell, N.A., Atkinson, T., Engelke, W., Huba, J.D., West, M.L., ..., and HamSCI Community, "Science Results from the 2023 and 2024 Solar Eclipse QSO Parties", Hamvention, Dayton - Ohio, US, 16-18 May 2025
[Oral] Pandey, K., Perry, G. W., Frissell, N. A., Atkinson, T., Engelke, W., Huba, J. D., West, M. L., ..., and HamSCI Community, "HamSCI Solar Eclipse QSO Party (SEQP): Observations and Modeling on Ionospheric Effects", HamSCI 2025 Workshop, Newark, US, 14-15 March 2025
[Poster] Pandey, K., Perry, G. W., Frissell, N. A., Atkison, T., Engelke, W., Huba, J. D., West, M. L., ..., and HamSCI Community, "Solar Eclipse QSO Party (SEQP) Ionospheric Results", AGU Meeting, Washington DC, US, 9-13 December 2024
[Poster] Pandey, K., Perry, G. W., Emmons, D., Kunduri, B., Huba, J. D., Chartier, A., Themens, D., "Observations of the Solar Eclipse Impact on Ionospheric Density", AGU Meeting, Washington DC, US, 9-13 December 2024
[Oral] Pandey, K., Perry, G. W., Frissell, N. A., Huba, J. D., Emmons, D., Themens, D., Kunduri, B., Chartier, A., and HamSCI Community "Solar Eclipse Effects on Ionospheric Density and Radio Propagation: Initial Findings", WHPI 2024 Total Solar Eclipse Mini-Workshop, held by Whole Heliosphere & Planetary Interactions (WHPI) Team, online, 21 November 2024
[Oral] Pandey, K., Gillies, R. G., Danskin, D. W., Kalafatoglu Eyiguler, E. C., Billett, D. D., Yau, A. W., Hussey, G. H., Perry, G. W., "Differential Mode Delays of HF Radio Waves in Presence of TIDs", CEDAR Workshop, San Diego, US, 9-14 June 2024
[Oral] Pandey, K., Kalafatoglu Eyiguler, E. C.*, Hussey, G. H., Danskin, D. W., Billett, D. D., Gillies, R. G., Yau, A. W., "Mode Delays of Transionospheric Radio Waves", DASP Workshop, Edmonton, Canada during 20-23 February 2024
[Poster] Pandey, K., Kalafatoglu Eyiguler, E. C., Danskin, D. W., Gillies, R. G., Yau, A. W., Hussey, G. H., "High Ellipticity Angles of Transionospheric Radio Waves: Observations and Modeling", AGU Fall Meeting, San Francisco, US, 11-15 December 2023
[Poster] Pandey, K., Kalafatoglu Eyiguler, E. C.*, Danskin, D. W., Gillies, R. G., Yau, A. W., Hussey, G. H., "The Ellipticity Polarization State of Transionospheric Radio Waves Using Swarm-E/e-POP RRI Satellite Observations and Modeling", URSI General Assembly and Scientific Symposium, Sapporo, Japan, 19-26 August 2023
[Poster] Pandey, K., Kalafatoglu Eyiguler, E. C., Gillies, R. G., Danskin, D. W., Yau, A. W., Hussey, G. H., "A Unique Observation of the Polarization State of a Single Mode Radio Wave Traversing Through the Ionosphere", CEDAR Workshop, San Diego, US, 25-30 June 2023
[Oral] Pandey, K., Kalafatoglu Eyiguler, E. C., Danskin, D. W., Gillies, R. G., Yau, A. W., Hussey, G. H., "Changes in Polarization State of Transionospheric Radio Waves Driven by Difference in O- and X-mode Powers", Ionospheric Effects Symposium, Alexandria, US, 9-11 May 2023
[Poster] Pandey, K., Gillies, R. G., Kalafatoglu Eyiguler, E. C., Hussey, G. H.*, Danskin, D. W., Yau, A. W., "The polarisation state of transionospheric radio waves detected by RRI on Swarm-E", EGU General Assembly, Vienna, Austria, 23–28 April 2023
[Oral] Pandey, K., Kalafatoglu Eyiguler, E. C., Gillies, R. G., Hussey, G. H., Danskin, D. W., Yau, A. W., "The ellipticity polarization state of transionospheric radio waves observed by the Swarm-E/e-POP RRI", DASP Workshop, Canadian Space Agency, Montreal, Canada, 20-24 February 2023
[Oral] Pandey, K., Gillies, R. G., Danskin, D. W., Kalafatoglu Eyiguler, E. C., Hussey, G. H., Yau, A. W., "Polarization Characteristics of Transionospheric Radio Waves: Observations and Modeling", AGU Fall Meeting, Chicago, US, 12-16 December 2022
[Poster] Pandey, K., Sekar, R., Chakrabarty, D., Anandarao, B. G., Hussey, G. H., "Investigation on Longitudinal and Decadal Variations of the Equatorial Electrojet using a Physical Model", International Symposium on Equatorial Aeronomy (ISEA), Kyoto University, Japan and online, 12-16 September 2022
[Oral] Pandey, K., Gillies, R. G., Kalafatoglu Eyiguler, E. C., Hussey, G. H., Danskin, D. W., Yau, A. W., "Modeling the radio wave polarization in transionospheric propagation", 3rd International Union of Radio Science (URSI) Meeting, Gran Canaria, Spain, 29 May - 03 June 2022
[Oral] Pandey, K., Kalafatoglu Eyiguler, E. C., Gillies, R. G., Hussey, G. H., Danskin, D. W.*, Yau, A. W., "Polarization characteristics of a single mode radio wave traversing through the ionosphere: A unique observation from the RRI on ePOP/SWARM-E", DASP Workshop, held online, 21-25 February 2022
[Oral] Pandey, K., Kalafatoglu Eyiguler, E. C., Danskin, D. W.*, Hussey, G. H., "RRI ellipticity angle investigations", DASP Workshop, held online, 15-20 February 2021
[Poster] Pandey, K., Sekar, R., Chakrabarty, D., Anandarao, B. G., "Investigation on Longitudinal and Decadal Variations of the Equatorial Electrojet using a Physical Model", AGU Fall Meeting, held online, 1-17 December 2020
[Oral] Pandey, K., Chakrabarty, D., Sekar, R., "Effects of disturbance dynamo electric field on equatorial ionosphere during daytime", National Space Science Symposium (NSSS), Savitribai Phule Pune University, India, 29-31 January 2019
[Oral] Pandey, K., Chakrabarty, D., Sekar, R., Anandarao, B. G., Gupta, S. P., "Afternoon counter electrojet over Indian longitudes during June solstice in solar minimum", International Symposium on Equatorial Aeronomy (ISEA), Physical Research Laboratory, India, 22-26 October 2018
[Poster] Pandey, K., Chakrabarty, D., Sekar, R., "Effect of disturbance dynamo on equatorial ionosphere during daytime", International Symposium on Equatorial Aeronomy (ISEA), Physical Research Laboratory, India, 22-26 October 2018
[Oral] Pandey, K., Chakrabarty, D., Sekar, R., "Significantly Large Impact of Disturbance Dynamo on Equatorial Ionosphere: Case Studies", Annual meeting of Asia Oceania Geosciences Society (AOGS), Hawaii, US, 3-8 June 2018
[Oral] Pandey, K., Sekar, R., Anandarao, B. G., Gupta, S. P., Chakrabarty, D., "On the Occurrence of Afternoon Counter Electrojet Over Indian Longitudes During June Solstice in Solar Minimum", Annual meeting of Asia Oceania Geosciences Society (AOGS), Hawaii, US, 3-8 June 2018
[Poster] Pandey, K., Sekar, R., Anandarao, B. G., Gupta, S. P., Chakrabarty, D., "Estimation of nighttime current density and daytime zonal electric field over the dip-equatorial E-region", URSI-Regional Conference on Radio Science (URSI-RCRS), National Atmospheric Research Laboratory, India, 1-4 March 2017
[Poster] Pandey, K., Sekar, R., Anandarao, B. G., Gupta, S. P., Chakrabarty, D., "Estimation of nighttime equatorial E-region current densities using electrojet model", National Space Science Symposium (NSSS), Vikram Sarabhai Space Centre, India, 9-12 February 2016
[Poster] Pandey, K., Sekar, R., Anandarao, B. G., Gupta, S. P., Chakrabarty, D., "Estimations of Nighttime Equatorial E-region Currents", URSI-Regional Conference on Radio Science (URSI-RCRS), Jawaharlal Nehru University, India, 16-19 November 2015
* indicates the presenting author when not presented by Kuldeep Pandey
Awards/Honors
2021 - Present Member of Board of Studies for Physics Department (BSc, MSc), Bhavan's College, Mumbai, India
2020 National Post Doctoral Fellowship (N-PDF) by Science and Engineering Research Board, India [Selected; not taken up]
2019 [Invited Speaker] Short Course on Space Weather by CSSTEAP (affiliated to United Nations), Physical Research Laboratory, India
2018 [Among top 5 Young Scientists] International Symposium on Equatorial Aeronomy (ISEA-15), Physical Research Laboratory, India
2016 [Best Paper Award] National Space Science Symposium, Vikram Sarabhai Space Centre, India
2015 [Best Poster Presentation Award] URSI-Regional Conference on Radio Science, Jawaharlal Nehru University, India
Synergistic Activities
Reading/Ad-hoc Reviewer for 1. National Aeronautics and Space Administration (NASA), USA; 2. National Science Foundation (NSF), USA
Journal Reviewer for (in alphabetical order): 1. Advances in Space Research (ASR), 2. Earth and Space Science (ESS), 3. Journal of Atmospheric and Solar-Terrestrial Physics (JASTP), 4. Journal of Astrophysics and Astronomy (JOAA), 5. Journal of Earth System Science, 6. Journal of Geophysical Research (JGR): Space Physics, 7. Space Weather
Mentoring
2026 May - July NSF REU student (Jerard Rapado) at New Jersey Institute of Technology, USA
2025 May - Present HamSCI volunteer (Gamal Zayed) to investigate the HF radio link budget/absorption levels
Judge for 1. Student Poster Competition, NSF CEDAR Workshop 2026, Des Moines, IA, USA; 2. Outstanding Student Presentation Award (OSPA), AGU Meeting 2024, Washington, DC, USA
Programming Experience
Python ────── 6 yr
MATLAB ──────── 8 yr
FORTRAN ──── 4 yr
Operating System
macOS ──────── 8 yr
Windows ────────── 10 yr
Linux ─── 3 yr
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