Multi-experiment observations of ionospheric disturbances as precursory effects of the Indonesian Ms6. 9 earthquake on August 05, 2018

X Zhang, Y Wang, MY Boudjada, J Liu, W Magnes… - Remote Sensing, 2020 - mdpi.com
Taking the 2018 Ms6. 9 Indonesia earthquake as a case study, the ionospheric
perturbations in very low frequency (VLF) transmitters recorded by China Seismo …

Unusual surface latent heat flux variations and their critical dynamics revealed before strong earthquakes

S Ghosh, S Chowdhury, S Kundu, S Sasmal, DZ Politis… - Entropy, 2021 - mdpi.com
We focus on the possible thermal channel of the well-known Lithosphere–Atmosphere–
Ionosphere Coupling (LAIC) mechanism to identify the behavior of thermal anomalies during …

Seismogenic anomalies in atmospheric gravity waves as observed from SABER/TIMED satellite during large earthquakes

S Kundu, S Chowdhury, S Ghosh, S Sasmal… - Journal of …, 2022 - Wiley Online Library
Atmospheric disturbances caused by seismic activity are a complex phenomenon. The
Lithosphere–Atmosphere–Ionosphere Coupling (LAIC) mechanism gives a detailed idea to …

Direct and indirect evidence of pre-seismic electromagnetic emissions associated with two large earthquakes in Japan

S Chowdhury, S Kundu, S Ghosh, M Hayakawa… - Natural Hazards, 2022 - Springer
Electromagnetic emissions (EMEs) associated with earthquake (EQ) epicenters are found to
be one of the most reliable phenomena for the short-term pre-seismic mechanism of …

Analysis of Pre-Seismic Ionospheric Disturbances Prior to 2020 Croatian Earthquakes

MY Boudjada, PF Biagi, HU Eichelberger, G Nico… - Remote Sensing, 2024 - mdpi.com
We study the sub-ionospheric VLF transmitter signals recorded by the Austrian Graz station
in the year 2020. Those radio signals are known to propagate in the Earth-ionosphere …

Study of aerosol anomaly associated with large earthquakes (M> 6)

S Ghosh, S Sasmal, M Naja, S Potirakis… - Advances in Space …, 2023 - Elsevier
We present the variation of unusual atmospheric phenomena, aerosols, to understand the
preseismic irregularities for two major earthquakes in Japan. We consider aerosol optical …

Natural time analysis of Global Navigation Satellite System surface deformation: The case of the 2016 Kumamoto earthquakes

SS Yang, SM Potirakis, S Sasmal, M Hayakawa - Entropy, 2020 - mdpi.com
In order to have further evidence of the atmospheric oscillation channel of the lithosphere-
atmosphere-ionosphere coupling (LAIC), we have studied criticality in global navigation …

Statistical and criticality analysis of the lower ionosphere prior to the 30 October 2020 Samos (Greece) earthquake (M6. 9), based on VLF electromagnetic propagation …

DZ Politis, SM Potirakis, YF Contoyiannis, S Biswas… - Entropy, 2021 - mdpi.com
In this work we present the statistical and criticality analysis of the very low frequency (VLF)
sub-ionospheric propagation data recorded by a VLF/LF radio receiver which has recently …

The influence of tropospheric processes on disturbances in the D and E ionospheric layers

OP Borchevkina, SO Adamson, YA Dyakov, IV Karpov… - Atmosphere, 2021 - mdpi.com
Determination of the physical mechanisms of the energy transfer of tropospheric
disturbances to the ionosphere is one of the fundamental problems of atmospheric physics …

Numerical modelling of sub-ionospheric very low frequency radio signal anomalies during the Samos (Greece) earthquake (M= 6.9) on October 30, 2020

S Biswas, S Chowdhury, S Sasmal, DZ Politis… - Advances in Space …, 2022 - Elsevier
Lower ionospheric perturbation during earthquake activity is well recognized by the
anomalous behavior of Very Low or Low Frequency (VLF/LF) radio signal. In this study, we …