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

D Lissa, GK Seemala, K Venkatesh, D Prasad… - Advances in Space …, 2024 - Elsevier
The variation of correlation between ROTI and S 4 index is examined by using GPS L1 and
L5 signals over an Indian low latitude station, Waltair (17.73° N, 83.37° E) during the period …

Ionospheric scintillation characteristics over Indian region from latitudinally-aligned geodetic GPS observations

SK Panda, M Moses, K Ansari, J Walo - Earth Science Informatics, 2023 - Springer
Ionospheric scintillations pose one of the biggest threats to Satellite-Earth communication
links in the communication and navigation systems services whose occurrence …

Leveraging machine learning techniques and GPS measurements for precise TEC rate predictions

S Tete, Y Otsuka, WK Zahra, A Mahrous - GPS Solutions, 2024 - Springer
This study explores machine learning models to gain insights into dynamics of ionospheric
irregularities over geodetic receivers in Mbarara (0.60° S, 30.74° E) and Kigali (1.94° S …

Morphology of Equatorial F-region Irregularities over the Indian Longitude sector using GPS-derived ROTI Observations

SSK Rajana, SK Panda, S Jade, CG Vivek - Advances in Space Research, 2024 - Elsevier
The occurrence characteristics of Equatorial F-region Irregularities (EFIs) along the Indian
longitude sector are investigated using GPS-derived ROTI observations from 2010 to 2023 …

Occurrence of ionospheric scintillations under different solar and geomagnetic conditions over low latitude station Varanasi

M Mondal, S Kumar, S Banola, AK Singh - Advances in Space Research, 2024 - Elsevier
In the present study, occurrences of amplitude scintillations during the ascending phase of
the 25th solar cycle from November 2020 to March 2023 are studied over the equatorial …

Machine learning approach for detection of plasma depletions from TEC

C Kapil, GK Seemala - Advances in Space Research, 2024 - Elsevier
Ionospheric delay is of concern for trans-ionospheric radio communication, especially for the
navigation systems relying on these satellite signals. Most of the ionospheric delays are …

Correlation analysis of normalized ROTI and S4 as observed during different geomagnetic conditions of the 2013 September equinox over the stations within EIA …

OE Abe, YO Migoya-Orué, SM Radicella - Advances in Space Research, 2023 - Elsevier
It has been a concern of space scientists and engineers for many decades to have a well-
defined proxy to characterize the fluctuations experienced by radio-based signals …

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

C Kapil, GK Seemala, I Katual, AP Dimri - Advances in Space Research, 2024 - Elsevier
Abstract Space weather variations can significantly affect ionospheric electron density,
which can, in turn, adversely affect various navigational and communication technologies …

Multi-instrument analysis of L-band amplitude scintillation observed over the Eastern Arabian Peninsula

AM Darya, MM Shaikh, G Nykiel, E Ghamry… - Advances in Space …, 2024 - Elsevier
The study of scintillation-causing ionospheric irregularities is important to mitigate their
effects on satellite communications. It is also important due to the spatial and temporal …

Relationship between geomagnetic storms and occurrence of ionospheric irregularities in the West sector of Africa during the peak of the 24th solar cycle

GO Ondede, AB Rabiu, D Okoh, P Baki… - Frontiers in Astronomy …, 2022 - frontiersin.org
The study of ionospheric irregularities is important since many technological systems might
be influenced by the ionosphere. In this work, we use data from the Global Navigation …