41 citations · 138 across the 19 of their papers we have counts for
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Predicting low-latitude ionospheric Total Electron Content (TEC) over the Indian sector under variable space weather conditions using solar wind parameters
Sumanjit Chakraborty, Gopi K. Seemala, A. P. Dimri
Accurate prediction of ionospheric Total Electron Content (TEC) during geomagnetically disturbed conditions remains challenging, particularly when empirical models perform poorly d…
Interhemispheric differences in field-aligned currents, ground magnetic perturbations, and TEC during the geomagnetic storms of May and October 2024
Sumanjit Chakraborty, Gopi K. Seemala
This study investigates storm-to-storm variability and hemispheric differences in magnetosphere-ionosphere (MI) coupling during the extreme (G5) geomagnetic storm of May 10-11 and…
Ionospheric responses over the Antarctic region to Intense Space Weather events: Plasma Convection vs. Auroral Precipitation
Sumanjit Chakraborty, Gopi K. Seemala
The present investigation is directed at exploring southern polar ionospheric responses to intense space weather events and their correlations with plasma convection and auroral pr…
Influence of ICME-driven Magnetic Cloud-like and Sheath Region induced Geomagnetic Storms in causing anomalous responses of the Low-latitude Ionosphere: A Case Study
Sumanjit Chakraborty, Dibyendu Chakrabarty, Anil K. Yadav +1
This work shows an anomalously enhanced response of the low-latitude ionosphere over the Indian sector under weak geomagnetic conditions (October 31, 2021) in comparison to a stron…
On the Low-Latitude Ionospheric Irregularities under Geomagnetically Active and Quiet Conditions using NavIC observables: A Spectral Analysis Approach
Sumanjit Chakraborty, Abhirup Datta
Ionospheric irregularities and associated scintillations under geomagnetically active/quiet conditions have detrimental effects on the reliability and performance of space- and gro…
Impact of Intense Geomagnetic Storm on NavIC Signals Over Indore
Deepthi Ayyagari, Sumanjit Chakraborty, Abhirup Datta +1
Intense geomagnetic storms can have a strong impact on the signals (termed ionospheric scintillations) emitted by any global navigation satellite system (GNSS). The paper reports t…
An ANN Approach in Predicting Solar and Geophysical Indices from Ionospheric TEC Over Indore
Sumanjit Chakraborty, Abhirup Datta
In this paper, preliminary results from the artificial neural network (ANN) based model developed at IIT Indore has been presented. One year's hourly total electron content (TEC) d…
Study of Low-latitude Ionospheric Scintillation using NavIC
Sumanjit Chakraborty, Abhirup Datta
Equatorial ionospheric irregularities have been studied in the past and have produced interesting insights into ionospheric physics and processes. Here, we present the initial resu…
Global asymmetry in X variations during the 06 April 2000 geomagnetic storm: Relative roles of IMF Bz and By
Sumanjit Chakraborty, D. Chakrabarty
This investigation is directed to understand the asymmetry in X variations caused due to the relative roles played by IMF Bz and IMF By in a particular interval (22:22 - 22:55 U…
Systematic study of ionospheric scintillation over the indian low-latitudes during low solar activity conditions
Deepthi Ayyagari, Abhirup Datta, Sumanjit Chakraborty
A systematic study of ionospheric scintillation at the low-latitudes, especially around the Equatorial Ionization Anomaly (EIA) and the magnetic equator, is essential in understand…
A novel method to identify IMF influence over low-latitude ionosphere from the correlation of magnetic field variations at nearly antipodal stations
Sumanjit Chakraborty, D. Chakrabarty
This work is directed to explore the efficacy of strong and consistent correlations between the X component of magnetic field at two equatorial/low-latitude stations at nearly a…
Evidence of changes in the low-latitude plasma drift under IMF coupling: a TIEGCM simulation approach
Sumanjit Chakraborty
Study of the dynamic nature of low-latitude ionosphere during geomagnetically disturbed conditions, especially in the EIA and the magnetic equatorial regions are vital for understa…
First results of Low-latitude Ionospheric Irregularities measured by NavIC and GPS near the Anomaly Crest and the Magnetic Equator
Sumanjit Chakraborty, Abhirup Datta, Deepthi Ayyagari
Ionospheric irregularity studies are important aspects for understanding ionospheric physics and related processes, especially near the low-latitude regions. However, simultaneous…
Ionospheric response to Strong Geomagnetic Storms during 2000-2005: An IMF clock angle perspective
Sumanjit Chakraborty, Sarbani Ray, Abhirup Datta +1
This paper presents the equatorial ionospheric response to eleven strong-to-severe geomagnetic storms that occurred during the period 2000-2005, the declining phase of the solar cy…
Assessment of the Performance of Ionospheric Models with NavIC Observations during Geomagnetic Storms
Sumanjit Chakraborty, Abhirup Datta
The paper presents an assessment of the performances of the global empirical models: International Reference Ionosphere (IRI)-2016 and the NeQuick2 model derived ionospheric Total…
Comparative studies of Ionospheric models with GNSS and NavIC over the Indian Longitudinal sector during geomagnetic activities
Sumanjit Chakraborty, Abhirup Datta, Sarbani Ray +2
This paper presents the storm time comparative analysis of the performances of latest versions of global ionospheric models: International Reference Ionosphere (IRI) 2016, NeQuick…
Performance of NavIC for studying the ionosphere at an EIA region in India
Deepthi Ayyagari, Sumanjit Chakraborty, Saurabh Das +3
This paper emphasizes on NavIC's performance in ionospheric studies over the Indian subcontinent region. The study is performed using data of one year (2017-18) at IIT Indore, a lo…
Effects of CME and CIR induced geomagnetic storms on low-latitude ionization over Indian longitudes in terms of neutral dynamics
Sumanjit Chakraborty, Sarbani Ray, Dibyendu Sur +2
This paper presents the response of the ionosphere during the intense geomagnetic storms of October 12-20, 2016 and May 26-31, 2017 which occurred during the declining phase of the…