@InProceedings{SánchezJuarezKherAstaPaul:2023:ObAnSi,
author = "S{\'a}nchez Juarez, Sa{\'u}l Alejandro and Kherani, Esfhan Alam
and Astafyeva, Elvira and Paula, Eurico Rodrigues de",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Universit{\'e} Paris
Cit{\'e}} and {Instituto Nacional de Pesquisas Espaciais
(INPE)}",
title = "Observational and analytical simulation study of rapid co-seismic
ionospheric disturbances during strong earthquakes",
booktitle = "Proceedings...",
year = "2023",
organization = "AGU FAll Meeting",
publisher = "AGU",
abstract = "The ionosphere hosts co-seismic ionospheric disturbances (CID or
ionoquakes) during earthquakes due to Seismo-Atmosphere-Ionosphere
(SAI) coupling. This phenomenon involves seismic vibrations at the
Earth's surface triggering coupled energetics into the atmosphere
and ionosphere in the form of various atmospheric/plasma waves.
Ionoquake detection from Doppler radars, Total-Electron-Content
(TEC) measurements from Global Navigation Satellite System (GNSS)
receivers, and magnetometers have revealed ionoquakes as potential
candidates for monitoring earthquake energetics in space. The
continuous coverage provided by GNSS networks around the globe has
made it possible to monitor disturbances in TEC around seismic
faults with high spatial/temporal resolutions and to detect
ionoquakes unambiguously. However, one of the unresolved issues in
ionospheric seismology is the early detection of near-field
ionoquakes, in less than 8 minutes from the earthquake onset. In
this study, we demonstrate that large earthquakes can generate
ionoquakes that are detectable as early as 400 seconds after the
earthquake onset and 250-430 seconds after the peak vertical
ground velocity, based on GNSS-TEC data and using the
SAI-analytical (SAI-ANA) simulation code. The SAI-ANA code was
recently developed to simulate the SAI coupling, starting from the
analytical solution of the equations used by Kherani et al. (2016)
to model atmospheric gravity waves (AGWs) and their interaction
with the ionosphere. This study is the first to reveal the rapid
arrival of gravity waves at ionospheric heights and the
development of ionoquakes in less than 7 minutes from the start of
the earthquake. Additionally, it is the first simulation to
capture the occurrence of rapid ionoquakes within a simulation
time of 2-3 minutes, significantly faster than their development
and detection within 8 minutes.",
conference-location = "San Francisco, CA",
conference-year = "11-15 Dec. 2023",
label = "self-archiving-INPE-MCTIC-GOV-BR",
language = "en",
targetfile = "Observational and analytical simulation.pdf",
urlaccessdate = "23 maio 2024"
}