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Recolector de Ciencia Abierta, RECOLECTA
Doctoral thesis . 2020
License: CC BY NC ND
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Recolector de Ciencia Abierta, RECOLECTA
Doctoral thesis . 2020
License: CC BY NC ND
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Tomografía 3D de Costa Rica a partir de ruido sísmico

Authors: Núñez Alpízar, Evelyn;

Tomografía 3D de Costa Rica a partir de ruido sísmico

Abstract

En esta tesis presentamos un modelo 3D de velocidades de onda S para la corteza de Costa Rica, obtenido a partir de las ondas superficiales (ondas Rayleigh). Las ondas Rayleigh se extrajeron de funciones de Green empíricas obtenidos de las correlaciones cruzadas del ruido sísmico ambiental. Calculamos correlaciones cruzadas diaria entre un total de 56 estaciones sísmicas de banda ancha alrededor de toda Costa Rica para el periodo del 2010 al 2015. Para el calculo de las correlaciones en este trabajo se utilizó la correlación cruzada clásica (CCC). También se presentan los resultados de la tomografía 2D de velocidad grupo para el volcán Turrialba obtenida a partir de ruido sísmico para el año 2016, sin embargo para este estudio las correlaciones cruzadas diarias de 21 estaciones sísmicas de banda ancha se calcularon utilizando la PCC (Phase Cross Correlation).

In this thesis we present a 3D shear-wave velocities model for the upper crust of Costa Rica obtained from surface (Rayleigh) waves. Rayleigh waves were extracted from empirical Green functions estimated from ambient noise cross correlation. We compute the daily cross correlations between a total of 56 broadband seismic stations across all Costa Rica for the period from 2010 to 2015. To compute the cross correlations for this work, we used the classical cross correlation (CCC). The results from the 2D group velocities tomography for the Turrialba volcano obtained from ambient noise for 2016 are also presented, however for this study the daily cross correlations of the 21 broadband seismic stations were calculated using the PCC (Phase Cross Correlation).

Beca doctoral OVSICORI-UNA A-JB-002-2012 (Observatorio Vulcanológico y Sismológico de Costa Rica - Universidad Nacional de Costa Rica)

El proyecto Europeo COST ES1401 TIDES (TIme DEpendent Seismology)

Proyecto de la Junta de Andalucía RNM-104.

Proyecto Español CGL2015-67130-C2-2-R.

Proyecto Español CGL2013-48601-C2-1-R.

Tesis Univ. Granada.

Country
Spain
Related Organizations
Keywords

Costa Rica, Tomografía, Sismo, 3D

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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