Now showing items 1-20 of 655

    3D Reconstruction and Modelling of the Sierras Exteriores Aragonesas (Southern Pyrenees, Spain). Structural Evolution of the Pico del Águila anticline 

    Vidal Royo, Oskar (Date of defense: 2010-06-23)

    This Thesis reports on the integration of different modelling techniques to construct a unified and better constrained conceptual model of structural evolution of the Pico del Águila anticline (External Sierras, Southern ...

    3D seismic imaging and geological modeling of the Hontomin CO2 storage site, Spain 

    Alcalde Martín, Juan (Date of defense: 2014-07-04)

    This thesis is organized as a compendium of three scientific articles, describing the geological characterization of the Hontomín site for Geological Storage of CO2 by means of 3D seismic data, acquired for this purpose, ...

    A coupled CFD-DEM model for sand production in oil wells 

    Climent Pera, Natalia (Date of defense: 2016-10-17)

    During the oil recovery a hole is drilled, the sandstone is left unsupported next to the cavity and disloged sand grains can enter the oil recovery system. This process is called sand production and several problems may ...

    A double-porosity formulation for the THM behaviour of bentonite-based materials 

    Vasconcellos, Ramon Barboza de (Date of defense: 2021-05-18)

    The thermo-hydro-mechanical (THM) behaviour of expansive clays has been extensively studied in the last decades due to the potential use of bentonites as components of engineered barrier systems (EBS) in deep geological ...

    A methodology to assess the combined effect of climate change and groundwater overexploitation over the Upper Guadiana basin, Spain 

    Sapriza Azuri, Gonzalo (Date of defense: 2013-12-20)

    There is a growing concern about the combined effect of climate change and groundwater overexploitation on the availability of water resources in the Upper Guadiana basin (UppGb) in central Spain. General Circulation Models ...

    A numerical formulation to solve the ALE Navier-Stokes equations applied to the withdrawal of magma chambers 

    Folch Duran, Arnau (Date of defense: 2000-05-17)

    La tesis presenta un algoritmo para la resolución de las ecuaciones de Navier-Stokes con acoplamiento mecánico en el contexto del método de los elementos finitos. La solución de la versión ALE de las ecuaciones de Navier-Stokes ...

    Active tectonics in Northern Africa: The Nubia-Eurasia boundary in Tunisia 

    Camafort Blanco, Miquel (Date of defense: 2019-04-26)

    This PhD thesis presents a geological and geophysical study that characterizes the Quaternary stratigraphy, geomorphology, recent tectonics, and discusses their implications to understand the geodynamic evolution of North ...

    Activitat neotectònica a les cadenes costaneres catalanes, L' 

    Masana Closa, Eulàlia (Date of defense: 1995-10-30)

    En aquest treball he analitzat els indicadors d'activitat neotectònica de les Cadenes Costaneres Catalanes amb la finalitat de caracteritzar aquesta activitat.<br/><br/>La importància de la caracterització del context ...

    Advanced exploitation of Sentinel-1 data for supporting landslide risk analysis 

    Barra, Anna (Date of defense: 2022-04-22)

    Satellite Synthetic Aperture Radar Interferometry (InSAR) and Persistent Scatterer Interferometry (PSI) are now consolidated tools for ground movement detection and monitoring. Sentinel-1 (S1) is the first satellite providing ...

    Advanced GNSS-R instruments for altimetric and scatterometric applications 

    Onrubia Ibáñez, Raúl (Date of defense: 2020-03-13)

    This work is the result of more than eight years during a bachelor thesis, a master thesis, and the Ph.D. thesis dedicated to the development of the Microwave Interferometric Reflectometer (MIR) instrument. It summarizes ...

    Advanced image analysis techniques for laboratory experiments on soils 

    Parera Morales, Ferran (Date of defense: 2020-01-27)

    The understanding of soil behavior is the foundation where the geotechnical engineering is built on. Experimentation is essential to improve this comprehension, and then to be able to translate it into models, theories, ...

    Advanced numerical techniques for inverse problems in geophysics 

    Ortega Gelabert, Olga (Date of defense: 2020-12-18)

    This thesis presents an efficient methodology to couple Model Order Reduction techniques within the framework of geophysical probabilistic inversion problems. Accurate models of the interaction between Earth inner processes ...

    Advanced seismic methods applied to the study of snow avalanche dynamics and avalanche formation 

    Pérez Guillén, Cristina (Date of defense: 2016-06-27)

    Snow avalanches are extended moving sources of infrasonic and seismic energy. The acoustic and seismic wave fields generated by an avalanche is a complex natural phenomenon produced by the interaction of the flow with its ...

    Advancement of methods for passive acoustic monitoring : a framework for the study of deep-diving cetacean 

    Solsona Berga, Alba (Date of defense: 2019-01-30)

    Marine mammals face numerous anthropogenic threats, including fisheries interactions, ocean noise, ship strikes, and marine debris. Monitoring the negative impact on marine mammals through the assessment of population ...

    Advancing in the characterization of coastal aquifers : a multimethodological approach based on fiber optics distributed temperature sensing 

    Del Val Alonso, Laura (Date of defense: 2020-06-03)

    Detailed characterization of coastal aquifers is essential for proper management of coastal groundwater resources, and coastal areas in general. Still, there is a general lack of systematic monitoring and detailed ...

    Afloraments fracturats digitalitzats. Avaluació de tècniques remotes en models DFN i aplicació de Machine Learning 

    Blanco Núñez, Laura (Date of defense: 2023-02-23)

    [cat] En l’actual transició digital, on es generen milions de dades cada dia, l’ús de tècniques remotes digitals i els processats amb tècniques de machine learning és cada cop més present i necessari, sense que l’àmbit de ...

    Agradación fluvial en la llanura deltaica de Haslital (Alpes Suizos). Análisis de facies sedimentarias y modelización cronoestratigráfica 

    Llorca Ballester, Jaime (Date of defense: 2016-01-18)

    El delta de Haslital (12 km de largo, 1 km de ancho), en los Alpes Berneses, ha progradado en el lago Brienz tras la retirada progresiva del glaciar Aare después del Último Máximo Glacial. Los deltas formados en cubetas ...

    Air Quality Modeling in Very Complex Terrains: Ozone Dynamics in the Northeastern Iberian Peninsula 

    Jiménez Guerrero, Pedro (Date of defense: 2005-03-09)

    Los altos niveles de contaminantes atmosféricos en el nordeste de la Península Ibérica tienen un fuerte impacto tanto en los ecosistemas como en la salud humana. Esta región es particularmente sensible a la contaminación ...

    Albitization of the granitic basement of the Guilleries and Roc de Frausa Massifs (NE Spain) in relationship to the Permian - Triassic palaeosurface 

    Fàbrega Alsina, Carles (Date of defense: 2020-12-17)

    The granitic basement below the Triassic unconformity in the Guilleries and Roc de Frausa massifs (NE Iberia), presents widespread red stained facies characterized by plagioclase albitization, biotite chlhoritization, ...

    Ammonits de l'Aptià inferior de la península Ibèrica. Bioestatigrafia i aportacions a l'estudi del Oceanic Anoxic Event 1a 

    Moreno-Bedmar, Josep Anton (Date of defense: 2010-03-05)

    Aquesta tesi doctoral tracta sobre el registre d'ammonits de l'Aptià inferior de la península Ibèrica (Conca del Maestrat, Domini Prebètic, Conca de Salou-Garraf, Conca Basco-Cantàbrica i Conca d'Organyà) on es proposen ...