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1. Identity statement
Reference TypeConference Paper (Conference Proceedings)
Sitemtc-m21b.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34P/3K3B7TS
Repositorysid.inpe.br/mtc-m21b/2015/08.11.13.34
Last Update2015:08.11.13.34.55 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m21b/2015/08.11.13.34.40
Metadata Last Update2018:06.04.02.55.37 (UTC) administrator
Secondary KeyINPE--PRE/
Citation KeyKheraniRolLogSlaPau:2015:CaSt
TitleTraveling ionosphere disturbances excited ahead of the Tohoku-Oki tsunami: a case study
Year2015
Access Date2024, June 14
Secondary TypePRE CI
Number of Files1
Size2049 KiB
2. Context
Author1 Kherani, Esfhan Alam
2 Rolland, L.
3 Lognonne, Philippe
4 Sladen, A.
5 Paula, Eurico Rodrigues de
Resume Identifier1
2
3
4
5 8JMKD3MGP5W/3C9JH2U
Group1 DAE-CEA-INPE-MCTI-GOV-BR
2
3
4
5 DAE-CEA-INPE-MCTI-GOV-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2
3
4
5 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1 esfhan.kherani@inpe.br
2
3
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5 eurico.paula@inpe.br
Conference NameInternational Congress of the Brazilian Geophysical Society, 14
Conference LocationRio de Janeiro, RJ
Date3-6 Aug.
History (UTC)2015-08-11 13:34:40 :: simone -> administrator ::
2018-06-04 02:55:37 :: administrator -> simone :: 2015
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
AbstractWe document two kinds of traveling ionospheric disturbances, namely, CTIDs (Co-tsunami-TravelingIonospheric-disturbances) and ETIDs (Early-Arrivalthan-Tsunami-Traveling-Ionospheric-disturbances) related to the Tohoku-Oki tsunami of 11 March 2011. They are, respectively, referred to the disturbances that remain behind and ahead of the principal tsunami wave-front. We first note their presence in a numerical experiment performed using a simulation code coupling the tsunami, atmosphere and ionosphere. This code uses the tsunami wave-field as an input and simulates Acoustic-Gravity Waves (AGWs) in the atmosphere and TIDs, in the form of total electron content (TEC) disturbance, in the ionosphere. The simulated TEC reveals the excitation of CTIDs (at about 2 TECU) and ETIDs (at about 1 TECU), representing up to 5% disturbance over the ambient electron density, and they arise from the dissipation of the AGWs in the thermosphere. A novel outcome is that the strong ETIDs are excited about 20-60 minutes earlier (than the tsunami arrival time) at a location which is about 3o -10o ahead of the instantaneous location of the principal tsunami wave-front. Simulation results are compared with the far-field observations using GNSS satellites and in both, ETIDs are identified as the secondary TEC maximum, occurring 20-40 minutes before the tsunami arrival while the primary TEC maximum representing the CTIDs occurs 10-45 minutes after the tsunami arrival. The ETIDs reported in this study are a new kind of TIDs whose characteristics can be potentially used for the early warning of the tsunami.
AreaCEA
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAE > Traveling ionosphere disturbances...
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4. Conditions of access and use
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User Groupsimone
Reader Groupadministrator
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Visibilityshown
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Update Permissionnot transferred
5. Allied materials
Mirror Repositoryurlib.net/www/2011/03.29.20.55
Next Higher Units8JMKD3MGPCW/3ETL868
Citing Item Listsid.inpe.br/mtc-m21/2012/07.13.14.45.35 2
Host Collectionsid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notes
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