Adrià MELÉNDEZ CATALÁN

Dr. al B-CSI, ICM (CSIC), Barcelona

Espanya, 2007

After obtaining the degree in Physics (2006-07) at the Universitat de Barcelona (UB) I get a scholarship from the Scolarship Program for Official Masters of la Caixa to study the Master in Geophysics (2007-08) of the Faculty of Geology (UB). I carried out my Master thesis at the Barcelona-Center for Subsurface Imaging research group (B-CSI) of the Institute of Marine Sciences (CSIC). For my academic results I was awarded the Honors Mention of my class. With a contract at the B-CSI I do my PhD that I finished in 2014 with an International Mention and Cum Laude. In this research group, I work on various seismic issues, focusing mainly, for my thesis and later work, in the development of a tool for traveltime tomography and its application to subduction zones for obtaining velocity models and geometry of reflectors. In addition, I collaborate with other group members who are dedicated to developing tools for full waveform inversion, as well as in seismic data acquisition, participating in marine seismic wide angle and multichannel reflection surveys. In my first article as second author [Sallarès et al., 2013] I apply an existing code for traveltime tomography in two dimensions (TOMO2D) to wide-angle seismic data acquired in Nicaragua to model the subduction zone of the convergent margin. This study also provides new information on the structure and composition of this convergent margin, and extends the knowledge about the behavior of a tsunami earthquakes, which generate anomalously large tsunamis considering their moderate magnitudes. In my first article as first author [Melendez et al., 2014] we explain a seemingly paradoxical phenomenon observed in wide angle seismic records. This explanation also allows us to increase the use of such data by traveltime tomography codes. In my second article as first author [Melendez et al., 2015] I present the parallel code TOMO3D, a tool for 3-D joint refraction and reflection traveltime tomography times based on TOMO2D, as well as an application to a synthetic realistic case to describe its usage and performance in detail. The most important advantages of the code are its parallelization, which drastically reduces the computation time, and the use of reflections, which allows the determination of the geometry of geological boundaries and a better recovery of velocity jumps.

LA BECA DE ADRIÀ

Convocatòria

Espanya, 2007

Universitat o centre de destinació

Universitat de Barcelona

Estudis cursats amb la beca

Física

Tipus d'estudis

Màster o equivalent

Especialitat dels estudis cursats amb la beca

Geologia

Universitat d'origen

Universitat de Barcelona

Especialitat d'origen

Física general