@InProceedings{KlausnerKherOjedPres:2018:StEfGe,
               author = "Klausner, V. and Kherani, Esfhan Alam and Ojeda-Gonz{\'a}lez, A. 
                         and Prestes, A.",
          affiliation = "{Universidade do Vale do Para{\'{\i}}ba (UNIVAP)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Universidade do Vale 
                         do Para{\'{\i}}ba (UNIVAP)} and {Universidade do Vale do 
                         Para{\'{\i}}ba (UNIVAP)}",
                title = "Study of the effects on the geomagnetic field during the maule 
                         tsunami using four spatiotemporal methods",
                 year = "2018",
         organization = "Latin American Conference on Space Geophysics, 11. (COLAGE)",
             abstract = "In this work, we focused on the survey of tsunamigenic variations 
                         in the vertical component (Z) and in the horizontal component (H) 
                         of the geomagnetic field using four spatiotemporal methods. 
                         Magnetic disturbances originated from ionospheric currents contain 
                         both horizontal and vertical components, however the vertical 
                         component is dominant in tsunamigenic magnetic signals observed on 
                         land. In this way, one can distinguish the former from the latter, 
                         and vice-verse. Here, we selected nine magnetic observatories that 
                         were influenced or more directly affected by the Maule (2010) 
                         tsunami event, which occurred during a very geomagnetically quiet 
                         period, i.e., without external influences. The continuous and 
                         discrete wavelet techniques have been used to identify the 
                         tsunamigenic magnetic disturbances, and together with the 
                         travel-time diagram (TTD) and mean absolute percentage error 
                         (MAPE) maps, these found tsunamigenic disturbances have been 
                         validated. These disturbances are found to have contributions from 
                         both oceanic and thermospheric currents which are arising from the 
                         tsunami forcing. The amplified N-shaped disturbances occurring 
                         instantly and with the time delay of 10-50 minutes from the 
                         tsunami arrival are attributed to be of the oceanic current and 
                         thermospheric current origin, respectively. These results suggest 
                         that these both kinds of tsunamigenic magnetic disturbances can be 
                         well-identified for the four spatiotemporal methods used here.",
  conference-location = "Buenos Aires, Argentina",
      conference-year = "16-20 abr.",
             language = "en",
        urlaccessdate = "27 abr. 2024"
}