@Article{SánchezJuarezKherAstaPaul:2023:RaDeCo,
               author = "S{\'a}nchez Juarez, Sa{\'u}l Alejandro and Kherani, Esfhan Alam 
                         and Astafyeva, E. and Paula, Eurico Rodrigues de",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Rapid Detection of Co-Seismic Ionospheric Disturbances Associated 
                         With the 2015 Illapel, the 2014 Iquique and the 2011 Sanriku-Oki 
                         Earthquakes",
              journal = "Journal of Geophysical Research: Space Physics",
                 year = "2023",
               volume = "128",
               number = "9",
                pages = "e2022JA031231",
                month = "Sept.",
             keywords = "acoustic gravity waves, co-seismic ionospheric disturbances, 
                         earthquakes, GNSS-TEC, ionoquakes, seismo-atmosphere-ionosphere 
                         coupling.",
             abstract = "Co-seismic Ionospheric disturbances (CID, or ionoquakes) are 
                         disturbances in the electron density or total electron content 
                         (TEC) of the ionosphere, produced by the ground motion due to 
                         earthquakes. Usually, ionoquakes are detected in the 
                         near-epicentral region within 810 min after an earthquake onset 
                         time. In this work, we present a new methodology that allows to 
                         estimate the CID arrival time based on determining the CID peak 
                         time in TEC measurements with respect to the peak time of seismic 
                         waves registered by the nearest seismic station. Our methodology 
                         also allows to understand the altitude of GNSS detection that 
                         otherwise remains ambiguous. We apply the newly developed 
                         techniques to detect CID signatures associated with three large 
                         earthquakes: the 2015 Illapel, the 2014 Iquique, and the 2011 
                         Sanriku-Oki. We show that for these events, the CID arrive 250430 
                         s after the time of the seismic wave peak, or 350700 s after the 
                         earthquake onset time. Our analysis show that the first CID are 
                         detected at the altitudes of 150180 km (the Sanriku earthquake) 
                         and of 200300 km (the Illapel and the Iquique earthquakes). The 
                         disturbances represent high-frequency acoustic oscillations that 
                         propagate with a horizontal speed faster than 0.75 km/s.",
                  doi = "10.1029/2022JA031231",
                  url = "http://dx.doi.org/10.1029/2022JA031231",
                 issn = "2169-9402",
             language = "en",
        urlaccessdate = "21 maio 2024"
}