%0 Book Section
%4 urlib.net/www/2017/12.05.13.58.57
%A Klausner, Virginia,
%A Santos, Thiago Almeida dos,
%A Meneses Júnior, Francisco Carlos de,
%A Kherani, Esfhan Alan,
%A Pillat, Valdir Gil,
%A Muella, M. T. A. H.,
%@secondarytype PRE LI
%B The Chile-2015 (Illapel) Earthquake and Tsunami
%C Cham, Suiça
%D 2017
%E Braitenberg, Carla,
%E Rabinovich, Alexander B.,
%F lattes: 5348874855184718 1 KlausnerSaMeKhPiMu:2017:InMaFi
%I Springer International Publishing
%K Chilean tsunami 2015, tsunamigenic magnetic disturbances, Z-component, tavelet analysis, effectiveness wavelet coefficients.
%P 193-208
%T Chile2015: induced magnetic fields on Z component by tsunami wave propagation
%U https://books.google.com.mx/books?id=vSnBAQAACAAJ
%X This study reports the magnetic disturbances due to the Chilean tsunami (2015). Using 10 ground-based magnetometer observatories spread in the Pacific Ocean, covering approximately 150º epicentral distance, for a time duration of 24 h from the tsunami initiation, tsunamigenic disturbances in the Z-component of the geomagnetic field are investigated. The methodologies namely, the discrete wavelet transform (DWT), the newly developed approach called effectiveness wavelet coefficient (EWC), and intrinsic mode functions (IMF) decomposition are implemented to detect these tsunamigenic disturbances. The analysis reveals the presence of an increase of EWC amplitude due to tsunamigenic magnetic disturbances nearly around the tsunami arrival time at each observatory. The IMF decomposition analysis using 1040 min levels of decomposition shows the amplified magnetic disturbances around the time of the increase in EWC amplitude. In most of the observatories, the time of the amplified EWC is consistent with the approximate time of the tsunami arrival, while in the other observatories, the IMF decomposition provides better consistency. The results suggest that the methodologies implemented in the present work can be effectively used to characterize the tsunamigenic contributions in the geomagnetic field, since the tsunami wavefront propagates towards the Pacific Ocean covers the time duration as long as 24 h from the tsunami initiation.
%@area CEA
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress francisco.meneses@inpe.br
%@electronicmailaddress esfhan.kherani@inpe.br
%@documentstage not transferred
%@group
%@group
%@group DIDAE-CGCEA-INPE-MCTIC-GOV-BR
%@group DIDAE-CGCEA-INPE-MCTIC-GOV-BR
%@isbn 9783319578217
%@usergroup lattes
%@nexthigherunit 8JMKD3MGPCW/3ETL868
%@affiliation Universidade do Vale do Paraíba (UNIVAP)
%@affiliation Universidade do Vale do Paraíba (UNIVAP)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Universidade do Vale do Paraíba (UNIVAP)
%@affiliation Universidade do Vale do Paraíba (UNIVAP)
%@versiontype publisher
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%2 urlib.net/www/2017/12.05.13.58.58