Sandeep Kumar
(PHD FELLOW)
| Email: | sandeep.kumar-1@nasa.gov |
| Phone: | 301.286.1111 |
| Org Code: | 674 |
| Address: |
NASA/GSFC Mail Code 674 Greenbelt, MD 20771 |
| Employer: | CATHOLIC UNIV OF AMERICA |
Brief Bio
Dr. Sandeep Kumar received his master’s degree in Physics from National Institute of Technology, Jalandhar, India. He completed his Ph.D. in Physics at the Indian Institute of Geomagnetism (IIG), India and University of Mumbai in 2018. During his doctoral work, he focused on geomagnetic storms and their effects on the low and equatorial latitude ionosphere from Space Weather perspective. He worked as a postdoctoral researcher at the Physical Research Laboratory (PRL), India in 2018. His research at PRL focused on magnetosphere-ionosphere coupling and ring current. He worked as a researcher and JSPS postdoctoral fellow at Institute for Space Earth Environmental research (ISEE), Nagoya University, Japan from 2019 to 2024. He was studying the dynamics of the inner magnetosphere using satellite, ground-based observations, and modeling to understand the physical mechanisms responsible for the transport, acceleration, and loss of energetic particles in the radiation belts. His research interests include Inner Magnetospheric dynamics, Ring current, Magnetosphere-Ionosphere coupling and Space Weather.
Positions/Employment
Postdoctoral Researcher
Physical Research Laboratory - Ahmedabad, India
April 2018 - November 2019
Postdoctoral Researcher
ISEE, Nagoya Univeristy - Japan
December 2019 - September 2022
JSPS Postdoctoral Researcher
ISEE, Nagoya Univeristy - Japan
October 2022 - September 2024
Postdoctoral Researcher
NASA GSFC/ CUA - USA
October 2024 - Present
Education
- Ph. D. Studies on equatorial and low latitude ionospheric electrodynamics and coupling processes during geomagnetically quiet and disturbed periods at Indian Institute of Geomagnetism (University of Mumbai), Navi Mumbai, India
- M. Sc. ( Physics) National Institute of Technology (NIT), Jalandhar, India
- B. Sc. (Physics, Mathematics, Chemistry) Guru Nanak Dev University, Amritsar, India
Awards
Japan Society for the Promotion of Science (JSPS) Postdoctoral Fellowship in 2022
Selected Publications
Refereed
2025. "Editorial: Space weather: magnetosphere ionosphere thermosphere (M-I-T) coupling.", Frontiers in Astronomy and Space Sciences, 12 1632922 [10.3389/fspas.2025.1632922] [Other]
2024. "Global Distribution of EMIC Waves and Its Association to Subauroral Proton Precipitation During the 27 May 2017 Storm: Modeling and Multipoint Observations.", Journal of Geophysical Research: Space Physics, 129 (6): [10.1029/2023ja032337] [Journal Article/Letter]
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 (10): [10.1029/2023sw003489] [Journal Article/Letter]
2023. "Plasma Pressure Distribution of Ions and Electrons in the Inner Magnetosphere During CIR Driven Storms Observed During Arase Era.", Journal of Geophysical Research: Space Physics, 128 (9): [10.1029/2023ja031756] [Journal Article/Letter]
2021. "Prediction of geomagnetically induced currents (GICs) flowing in Japanese power grid for Carrington-class magnetic storms.", Earth, Planets and Space, 73 (1): 163 [10.1186/s40623-021-01493-2] [Journal Article/Letter]
2021. "Contribution of Electron Pressure to Ring Current and Ground Magnetic Depression Using RAM‐SCB Simulations and Arase Observations During 7–8 November 2017 Magnetic Storm.", Journal of Geophysical Research: Space Physics, 126 (6): [10.1029/2021ja029109] [Journal Article/Letter]
2020. "Effects of IMF By on Ring Current Asymmetry Under Southward IMF Bz Conditions Observed at Ground Magnetic Stations: Case Studies.", Journal of Geophysical Research: Space Physics, 125 (10): [10.1029/2019ja027493] [Journal Article/Letter]
2019. "Signatures of substorm related overshielding electric field at equatorial latitudes under steady southward IMF Bz during main phase of magnetic storm.", Advances in Space Research, 64 (10): 1975-1988 [10.1016/j.asr.2019.04.001] [Journal Article/Letter]
2018. "Characteristics of storm time ion composition in the near-Earth plasma sheet using Geotail and RBSP measurements.", Earth, Planets and Space, 70 (1): 203 [10.1186/s40623-018-0977-3] [Journal Article/Letter]
2018. "Low-latitude Aurorae during the Extreme Space Weather Events in 1859.", The Astrophysical Journal, 869 (1): 57 [10.3847/1538-4357/aae47c] [Journal Article/Letter]
2018. "Rare observation of daytime whistlers at very low latitude (L = 1.08).", Advances in Space Research, 61 (7): 1909-1918 [10.1016/j.asr.2017.07.035] [Journal Article/Letter]
2017. "The role of interplanetary shock orientation on SC/SI rise time and geoeffectiveness.", Advances in Space Research, 59 (5): 1425-1434 [10.1016/j.asr.2016.12.010] [Journal Article/Letter]
2016. "Possible relationship between the equatorial electrojet (EEJ) and daytime vertical E × B drift velocities in F region from ROCSAT observations.", Advances in Space Research, 58 (7): 1168-1176 [10.1016/j.asr.2016.06.009] [Journal Article/Letter]
2016. "On the reduced geoeffectiveness of solar cycle 24: A moderate storm perspective.", Journal of Geophysical Research: Space Physics, 121 (9): 8188-8202 [10.1002/2016ja022885] [Journal Article/Letter]
2015. "Estimation of interplanetary electric field conditions for historical geomagnetic storms.", Journal of Geophysical Research: Space Physics, 120 (9): 7307-7317 [10.1002/2015ja021661] [Journal Article/Letter]
2015. "The influence of Corotating Interaction Region (CIR) driven geomagnetic storms on the development of equatorial plasma bubbles (EPBs) over wide range of longitudes.", Advances in Space Research, 55 (2): 535-544 [10.1016/j.asr.2014.10.013] [Journal Article/Letter]