Araceli Garcia-Yeguas

University of Granada | UGR · Departamento de Didáctica de las Ciencias Experimentales

La educación STEM cada vez produce más interés en el ámbito educativo. En la literatura podemos encontrar distintas definiciones, haciendo que su comprensión pueda resultar dispersa. En este trabajo analizamos la actitud de los docentes hacia este enfoque educativo y el modelo mental con el que lo conciben antes y después de vivenciar un programa f...

En este artículo se plantean dos objetivos: (1) el diseño, desarrollo y validación de una rúbrica para evaluar la calidad de propuestas didácticas STEM; y (2) su aplicación en las producciones de una muestra de estudiantes del Grado de Primaria. Para ello, se parte de un marco teórico que expone los antecedentes y nuestro posicionamiento ante la te...

Se describe una experiencia piloto de capacitación en educación STEM. A partir de un diseño preexperimental con mediciones pre y post-test, en el que participaron 42 estudiantes del Grado de Educación Primaria, se analizan las efectos generados en la actitud de los participantes hacia este enfoque educativo. Los resultados muestran un efecto modera...

Los volcanes son uno de los contenidos más complejos de enseñar en educación obligatoria debido a la conjunción de las diversas dimensiones y variables que encierran. En este trabajo hemos analizado el concepto de volcán desde una perspectiva científica, didáctica y social. Para ello hemos establecido primero las dimensiones científicas que engloba...

This work presents a new methodology designed to estimate the slowness vector in large-aperture sparse Ocean Bottom Seismometer (OBS) arrays. The Continuous Wavelet Transform (CWT) is used to convert the original incoherent traces that span a large array, into coherent impulse functions adapted to the array aperture. Subsequently, these impulse fun...

The Teaching Innovation Project to which we refer below has been focused to pupils of the subject "Meteorology", taught in the third year of the degree in Nautical Sciences and Maritime Transport. Furthermore, the general and specific skills enhanced in the students through this project, are very useful for many other subjects on their degree. The...

This paper describes the results of the teaching innovation project. It was putting into practice at the School of Engineering of the University of Cádiz during the academic year 2016/2017. It was called "If I have seen further it is because I am sitting on the shoulders of giants. A little history of Women and Men in the history of Science and Eng...

This paper describes the results of the teaching innovation project. It was putting into practice at the School of Engineering of the University of Cádiz during the academic year 2016/2017. It was called "If I have seen further it is because I am sitting on the shoulders of giants. A little history of Women and Men in the history of Science and Eng...

Mountain building is a subject that has not been thoroughly explored in relation to misconception research. However, mountain building is complex, involving not only endogenous processes, but also exogenous ones. The main objective of this contribution is to determine, from a holistic standpoint, the misconceptions that students hold concerning mou...

We present a P-wave scattering image of the volcanic structures under Tenerife Island using the autocorrelation functions of P-wave vertical velocity fluctuations. We have applied a cluster analysis to total quality factor attenuation (\( {Q}_t^{-1} \)) and scattering quality factor attenuation (\( {Q}_{PSc}^{-1} \)) images to interpret the structu...

In the Central Mediterranean region, the production of chemically diverse volcanic products (e.g., those from Mt. Etna and the Aeolian Islands archipelago) testifies to the complexity of the tectonic and geodynamic setting. Despite the large number of studies that have focused on this area, the relationships among volcanism, tectonics, magma ascent...

Deception Island volcano (Antarctica) is one of the most closely monitored and studied volcanoes on the region. In January 2005, a multi-parametric international experiment was conducted that encompassed both Deception Island and its surrounding waters. We performed this experiment from aboard the Spanish oceanographic vessel ‘Hespérides’, and from...

In this work we have done a 3D joint interpretation of magnetotelluric and seismic tomography models. Previously we have described different techniques to infer the inner structure of the Earth. We have focused on volcanic regions, specifically on Tenerife Island volcano (Canary Islands, Spain). In this area, magnetotelluric and seismic tomography...

In this work, we integrate artificial and natural seismic sources data to obtain high-resolution images of the shallow inner structure of Stromboli volcano. Overall, we used a total of 21,953 P readings from an active seismic experiment and an additional 2,731 P and 992 S readings deriving from 269 local events. The well-defined Vp, Vs and Vp/Vs to...

In the present paper we describe the on-land field operations integrated in the TOMO-ETNA experiment carried out in June-November 2014 at Mt. Etna volcano and surrounding areas. This terrestrial campaign consists in the deployment of 90 short-period portable three-component seismic stations, 17 broadband seismometers and the coordination with 133 p...

This work describes the automatic picking of the P-phase arrivals of the 3*106 seismic registers originated during the TOMO-ETNA experiment. Air-gun shots produced by the vessel Sarmiento de Gamboa and contemporary passive seismicity occurring in the island are recorded by a dense network of stations deployed for the experiment. In such scenario, a...

In this manuscript we present the new friendly seismic tomography software based on joint inversion of active and passive seismic sources called PARTOS (Passive Active Ray Tomography Software). This code has been developed on the base of two well-known widely used tomographic algorithms (LOTOS and ATOM-3D), providing a robust set of algorithms. The...

In this paper we present the current crustal deformation model of Tenerife Island derived from daily CGPS time series processing (2008–2015). Our results include the position time series, a global velocity estimation and the current crustal deformation on the island in terms of strain tensors. We detect a measurable subsidence of 1.5–2 mm/yr. in th...

We present the joint interpretation of two geophysical models obtained in the Tenerife Island. The geophysical data employed are complementary (seismic velocity and electrical resistivity). The 3D electrical resistivity structure of the island has been obtained trough 3D inversion of 148 magnetotelluric sites in the period range 0.001 to 10 s. Data...

In this manuscript we present a new interpretation of the seismic series that accompanied eruptive activity off the coast of El Hierro, Canary Islands, during 2011–2013. We estimated temporal variations of the Gutenberg-Richter b-value throughout the period of analysis, and performed high-precision relocations of the pre- and syn-eruptive seismicit...

Abstract This manuscript shows a new multidisciplinary interpretation approach of the internal structure of Tenerife island. The central core of this work is the determination of the three dimensional attenuation structure of the region using P-waves and the Coda Normalization (CN) method. This study has been performed using 45303 seismograms recor...

The seismic and volcanological structure of Deception Island (Antarctica) is an intense focus topic in Volcano Geophysics. The interpretations given by scientists on the origin, nature, and location of the structures buried under the island strongly diverge. We present a high-resolution 3D P-wave attenuation tomography model obtained by using the c...

Two Teaching Innovation Projects were carried out in the framework of the subjects 'Physics I' and 'Physics II' for different Degrees on Engineering at the Engineering High School of the University of Cadiz, Spain, during the 2013-2014 course. The aim of these Projects was to catch the interest of first-course students on physical phenomena and pri...

Two Teaching Innovation Projects were carried out in the framework of the subjects ‘Physics I’ and ‘Physics II’ for different Degrees on Engineering at the Engineering High School of the University of Cadiz, Spain, during the 2013-2014 course. The aim of these Projects was to catch the interest of first course students on physical phenomena and pri...

We present a 3-D model of P and S velocities beneath El Hierro Island, constructed using the traveltime data of more than 13 000 local earthquakes recorded by the Instituto Geográfico Nacional (IGN, Spain) in the period from 2011 July to 2012 September. The velocity models were performed using the LOTOS code for iterative passive source tomography....

The complex volcanic system of Tenerife Island is known to have a highly heterogeneous character, as recently confirmed by velocity tomography. We present new information derived from intrinsic quality factor inverse maps (Qi-1), scattering quality factor inverse maps (Qs-1) and total quality factor inverse maps (Qt-1) obtained for the same region....

In this work we present regional maps of the inverse intrinsic quality factor (Qi-1), the inverse scattering quality factor (Qs-1) and total inverse quality factor (Qt-1) for the volcanic environment of Deception Island (Antarctica). Our attenuation study is based on Diffusion approximation, which permits us to obtain the attenuation coefficients f...

In the present work we are going to analyze the same data-set used to develop the 3D velocity tomographies to realize 2D intrinsic and scattering attenuation tomography. For that we are going to apply the diffusion model which is an approximation of the general energy transport theory developed by Wegler et al. (2001) and Wegler (2003). So, this ne...

In recent years, an increasing number of studies have focussed on resolving the internal structure of ocean island volcanoes. Traditionally, active source seismic experiments have been used to image the volcano edifice. Here we present results using the analysis of compressional to shear (P to S) converted seismic phases from teleseismic events, re...

Tenerife (Canary Islands, Spain) is a volcanic island dominated by the Teide-Pico Viejo complex, with a summit height of 3718 m. After renewed signs of activity starting in 2004, an active seismic experiment was performed in 2007 to derive a tomographic model and identify seismic anomalies possibly associated with the magmatic system. To complement...

We present a high resolution 3 dimensional (3D) P wave velocity model for Tenerife Island, Canaries, covering the top of Teide volcano (3,718 m a.s.l.) down to around 8 km below sea level (b.s.l). The tomographic inversion is based on a large data set of travel times obtained from a 3D active seismic experiment using offshore shots (air guns) recor...

We present an overview of recent results of seismic tomography studies of different volcanic complexes performed in collaboration with different research teams. In first three examples corresponding to Central Andes, areas around Merapi volcano and Toba caldera, the tomographic images down to 100-200 km depth reveal the paths of fluids and melts wh...

In this work we are going to show the advantages of a dynamic tomography 4D, versus a static image 3D related with a volcanic reactivation and eruption at El Hierro island (Canary Islands, Spain). In this process a high number of earthquakes before and during the eruptive processes have been registered. We are going to show a 3D image as an average...

We analyse shot data recorded by eight seismic arrays during an active-source seismic experiment carried out at Deception Island (Antarctica) in 2005 January. For each source we estimate the apparent slowness and propagation azimuth of the first wave arrival. Since both source and receiver positions are accurately known, we are able to interpret th...

Tenerife Island internal structure is not well-known. The 3D seismic tomography shows the internal structure of this active volcano with a high resolution. More than 6000 sources and 150 land stations deployed over the island have been used. Tenerife Island is an active volcanic island and it is located in Canary Island's archipelago (Spain). In Ja...

3D velocity structure distribution has been imaged for first time using high resolution traveltime seismic tomography of the active volcano of Tenerife Island (Canary Islands, Spain). It is located in the Atlantic Ocean. In this island is situated the Teide stratovolcano (3718 m high) that is part of the Cañadas-Teide-Pico Viejo volcanic complex. L...

A 3D detailed velocity model of the Tenerife Island has been obtained for first time using high resolution traveltime seismic tomography. Tenerife is a volcanic island (Canary Island, Spain) located in the Atlantic Ocean. In this island is situated the Teide stratovolcano (3718 m high) that is part of the Cañadas-Teide-Pico Viejo volcanic complex....

The aim of this work is to apply the Hidden Markov Model (HMM) method to recognise seismic signals belonging to different active volcanoes. We use data obtained from two field surveys carried out in 1997 and 1999 at Stromboli and Etna, respectively. For Stromboli we used two types of seismic signals for recognition purposes: Strombolian explosions...

The goal of the present work is to apply of the Hidden Markov Model (HMM) method to recognize signals belonging to different active volcanoes. We use data from two field surveys carried out in 1997 and 1999 at Stromboli and Etna, respectively. For Stromboli volcano we define two types of seismic signals to recognize: Strombolian explosions and back...

An active seismic experiment to study the internal structure of Teide Volcano was carried out on Tenerife, a volcanic island in Spain’s Canary Islands. The main objective of the TOM-TEIDEVS experiment is to obtain a 3-dimensional structural image of Teide Volcano using seismic tomography and seismic reflection/refraction imaging techniques. At pres...

The main objective of the present study was to investigate the wavefield properties of the seismic signals generated by the explosions of the Volcán de Colima (México). We have analyzed these properties to understand the initial mechanism that triggered the explosive events. Our study is focused on the direct waves coming from the crater area, and...

An active seismic experiment to study the internal structure of Teide Volcano was carried out on Tenerife, a volcanic island in Spain's Canary Islands. The main objective of the TOM-TEIDEVS experiment is to obtain a 3-dimensional structural image of Teide Volcano using seismic tomography and seismic reflection/refraction imaging techniques. At pres...

An active seismic experiment to study the internal structure of Teide Volcano was carried out on Tenerife, a volcanic island in Spain’s Canary Islands. The main objective of the TOM-TEIDEVS experiment is to obtain a 3-dimensional structural image of Teide Volcano using seismic tomography and seismic reflection/refraction imaging techniques. At pres...

An active seismic experiment to study the internal structure of Teide volcano is being carried out on Tenerife, a volcanic island in Spain's Canary Islands archipelago. The main objective of the Tomography at Teide Volcano Spain (TOM-TEIDEVS) experiment, begun in January 2007, is to obtain a three-dimensional (3-D) structural image of Teide volcano...

INGV Osservatorio Vesuviano Published 1.4. TTC - Sorveglianza sismologica delle aree vulcaniche attive 3.1. Fisica dei terremoti 3.6. Fisica del vulcanismo

This paper shows a complete seismic-event classification and monitoring system that has been developed based on the seismicity observed during three summer Antarctic surveys at the Deception Island Volcano, Antarctica. The system is based on the state of the art in hidden Markov modeling (HMM) techniques successfully applied to other scenarios. A d...

This paper shows a complete seismic event classification system based on the state of the art in Hidden Markov Modeling (HMM) which has been successfully used for discriminating between different seismic events produced at active volcanoes. A database consisting of a representative set of different seismic events including explosions and tremor bur...

This paper shows a complete volcano monitoring system that has been developed on the basis of the seismicity observed during three summer Antarctic surveys at Deception Island Volcano (Antarctica). The system is based on the state of the art in hidden Markov modelling (HMM) techniques successfully applied to other scenarios. A database containing a...

In order to better constrain the explosive activity in the Volcán de Fuego de Colima, a seismic antenna, and four Broad Band stations have been deployed around the edifice. The experiment has duration of six months and the objective is to record seismic signals associated to explosive episodes of the volcano. The seismic antenna was deployed at aro...

The seismic antennas provide information about the propagation parameters (azimuth and apparent slowness) of the incoming wave-fronts. These parameters could be strongly influenced by the lateral heterogeneities of the medium. This effect is specially intense in volcanic environments where we expect to have highly heterogeneous velocity structure....

The objective of this work is to build a prototype of an automatic system of recognition and classification of seismic events in active volcanoes. Capable in a future of working in real time and this way, facilitate the work of the specialists in the analysis and future predictions that happen in the development of the activity of a volcano. The de...

En este trabajo se presentan los resultados de un estudio de la propagación de ondas sísmicas en un medio volcánico, isla Decepción (Antártida) registradas usando antenas sísmicas. Los datos usados corresponden a un experimento de sísmica activa (explosiones con cañones de aire comprimido). Las antenas sísmicas son configuraciones muy densas de est...

Tesis Univ. Granada. Departamento de Física Teórica y del Cosmos. Leída el 28 de septiembre de 2010