Quantitative modeling of ocean/ionosphere coupling for monitoring tsunamis from space

• Grant number: 15/50541-3
• Support Opportunities: Regular Research Grants
• Duration: November 01, 2016 - October 31, 2018
• Field of knowledge: Physical Sciences and Mathematics - Geosciences - Geophysics
• Convênio/Acordo: CNRS
• Mobility Program: SPRINT - Projetos de pesquisa - Mobilidade
• Principal Investigator: Esfhan Alam Kherani
• Grantee: Esfhan Alam Kherani
• Principal researcher abroad: Lucie Rolland
• Institution abroad: Observatoire de la Côte d'Azur (OCA), France
• Host Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia e Inovações (Brasil). São José dos Campos , SP, Brazil
• Associated research grant: 11/21903-3 - Traveling ionospheric disturbances: simulation and observation, the importance of latitudinal coupling of gravity wave-Perkins-Es layer instabilities and forcing from pre-seismic events, AP.JP

Abstract

During the last decade, a growing body of evidence indicates that the upper, ionized, part of the atmosphere - namely the ionosphere - is sensitive to perturbations generated by large earthquakes and tsunamis. In a recent study of the large 2011 Japan tsunami, we reported on the presence of tsunami-induced Traveling Ionospheric Disturbances detected ahead of the tsunami wave front. This kind of precursory signal could therefore contribute to the development of a tsunami early-warning system. In this proposal, we aim at developing an integrated simulation and observational approach in order to quantitatively relate the early-observed ionospheric signal to the tsunami amplitude. A complete magneto-hydrodynamic model is under development with financial support from FAPESP since 2012. We propose a collaborative framework to gather and reproduce by simulation both airglow data, GPS-derived electron content and geomagnetic field observations related to three recent tsunami events, geomagnetic field observations related to three recent tsunami events. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

KLAUSNER, V.; GIMENES, H. M.; CEZARINI, M. V.; OJEDA-GONZALEZ, A.; PRESTES, A.; CANDIDO, C. M. N.; KHERANI, E. A.; ALMEIDA, T.. Geomagnetic Disturbances During the Maule (2010) Tsunami Detected by Four Spatiotemporal Methods. PURE AND APPLIED GEOPHYSICS, v. 178, n. 12, SI, AUG 2021. (15/50541-3, 11/21903-3)