J
Jean-Xavier Dessa
Researcher at Centre national de la recherche scientifique
Publications - 18
Citations - 580
Jean-Xavier Dessa is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Seismometer & Subduction. The author has an hindex of 8, co-authored 18 publications receiving 527 citations. Previous affiliations of Jean-Xavier Dessa include Pierre-and-Marie-Curie University.
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Crustal seismic imaging from multifold ocean bottom seismometer data by frequency domain full waveform tomography: Application to the eastern Nankai trough
TL;DR: In this article, the authors demonstrate the feasibility of full waveform tomography based on dense ocean bottom seismometer data sets and its ability to quantitatively image the entire crust with a significantly improved resolution compared to what is usually achieved through traveltime tomography.
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Limits of the seismogenic zone in the epicentral region of the 26 December 2004 great Sumatra-Andaman earthquake: Results from seismic refraction and wide-angle reflection surveys and thermal modeling
Frauke Klingelhoefer,Marc-André Gutscher,Stefan Ladage,Jean-Xavier Dessa,David Graindorge,Dieter Franke,Camille André,Haryadi Permana,Tedi Yudistira,A. Chauhan +9 more
TL;DR: In this article, a seismic velocity model was obtained from combined travel time tomography and forward modeling, together with reflection seismic data from the SeaCause II cruise, revealing the deep structure of the source region of the great earthquake.
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Megathrust earthquakes can nucleate in the forearc mantle: Evidence from the 2004 Sumatra event
Jean-Xavier Dessa,Frauke Klingelhoefer,David Graindorge,Camille André,Haryadi Permana,Marc-André Gutscher,A. Chauhan,Satish C. Singh +7 more
TL;DR: In this article, the authors show that the great 2004 Sumatra-Andaman earthquake propagates downdip along the interface between the forearc mantle and the subducting plate, and nucleated along this reportedly aseismic part of the interplate contact.
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Seismic imaging of forearc backthrusts at northern Sumatra subduction zone
A. Chauhan,Satish C. Singh,Nugroho D. Hananto,H. Carton,Frauke Klingelhoefer,Jean-Xavier Dessa,Haryadi Permana,Nicky White,David Graindorge +8 more
TL;DR: In this article, the authors presented a high-resolution deep seismic reflection image of the northern Sumatran subduction forearc, near the 2004 December 26 Sumatra earthquake epicentral region.
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Combined traveltime and frequency-domain seismic waveform inversion: a case study on multi-offset ultrasonic data
Jean-Xavier Dessa,G. Pascal +1 more
TL;DR: In this article, a mixed tomographic approach is adopted in which traveltime and waveform inversion are combined iteratively, and the data computed in the final tomographic model match most of the observed features in the experimental seismograms.