Now showing items 49-66 of 66

    Relació entre la distribució de nutrients i oxigen dissolt i la composició elemental del fitoplàncton a la Mar Catalana (N-O Mar Mediterrània) 

    Segura Noguera, Mariona (Date of defense: 2007-10-19)

    Els organismes vius estan composats d'elements químics, principalment C, H, O, N, P i S. L'estudi d'aquests elements essencials és una eina molt útil que permet moure'ns entre diferents nivells d'organització biològica, ...

    Sediment dynamics and associated heavy metals in small river-and wave-dominated inner shelf (Barcelona city, Nw Mediterranean) 

    López Fernández, Laura (Date of defense: 2013-10-24)

    Wave storms and river inputs have been found to be the dominant forcing mechanism of sediment transport in continental shelves dominated by medium to large rivers around the world (e.g. Drake and Cacchione, 1985; Sherwood ...

    Spatial Objective Analysis of Oceanographic Variables. An Application to the Ebro Delta Shelf/Slope Domain (North- Western Mediterranean) 

    León Arteaga, Angélica M. de (Date of defense: 2002-07-19)

    In this research we tested two data analyses methodologies, namely the empirical orthogonal functions (EOFs) to estimate hydrographic CTD data profiles, and a successive corrections algorithm (SC) to project the results ...

    Start of sediment mtion and resuspension in turbulent flows: applications of zero-mean flow grid stirred turbulence on sediment studies 

    Medina Enriquez, Pablo (Date of defense: 2002-07-17)

    The objectives of the thesis were, on the one hand, to test the possibilities of a well-known experimental configuration (oscillating grid mixing box), used to study stratified fluids in turbulent flows with zero-mean, on ...

    Study of salinity retrieval errors for the SMOS mission 

    Gabarró Prats, Carolina (Date of defense: 2004-12-17)

    El treball realitzat en aquesta tesi està emmarcat en la missió SMOS (Soil Moisture and Ocean Salinity) de l'Agència Espacial Europea. El satèl·lit es llançarà al febrer del 2007, i mesurarà la salinitat superficial del ...

    The diversity of dinoflagellates belonging to the gymnodiniales from the catalan coast (NW Mediterranean Sea) 

    Reñé Vicente, Albert (Date of defense: 2014-02-28)

    Dinoflagellates are one of the most abundant and diverse groups of microalgae. Many dinoflagellates are covered with cellulose plates, whereas others lack these plates and are hence referred to as athecate or unarmoured. ...

    The Northern Current and its interaction with the Blanes submarine canyon (NW Mediterranean Sea) 

    Ahumada Sempoal, Miguel Angel (Date of defense: 2014-12-11)

    A high-resolution (~1.2km) 3D circulation model nested in one-way to a coarse-resolution (~4km) 3D regional model was used to examine the interaction between the Northern Current and the Blanes submarine canyon (~41°00’-41°46’N; ...

    Three-dimensional simulation of pollutant dispersion in coastal waters 

    Mestres Ridge, Marc (Date of defense: 2002-07-15)

    Traditionally, the sea has been considered as the ultimate sink of most pollutions, due to its huge volume and assimilating capacities, and the coastal waters, because of their intermediate position between deep seas and ...

    Tormentas de oleaje en el Mediterráneo: Física y Predicción. 

    Bolaños Sánchez, Rodolfo (Date of defense: 2004-11-17)

    En la zona costera mediterránea se llevan a cabo una gran cantidad de actividades socioeconómicas. En estas áreas los eventos meteorológicos son un factor importante para su manejo y gestión. Esto ha generado la necesidad ...

    Towards data assimilation in the Catalan Continental Shelf From data analysis to optimization methods. 

    Jordà Sánchez, Gabriel (Date of defense: 2005-06-17)

    L'objectiu d'aquesta tesi és implementar un sistema d'assimilació de dades a un model hidrodinàmic de la plataforma continental catalana. Aquest sistema ens permetrà combinar la informació proporcionada per les dades ...

    Toxicogenomic analysis of environmental impact in aquatic systems 

    Navarro Cuenca, Anna (Date of defense: 2012-06-18)

    Field biomonitoring based on molecular biomarkers detects early warning signals of stress suffered by organisms exposed to contamination. The lower part of the Ebro River basin has a long pollution history related to the ...

    Trophic cascade modelling in bathyal ecosystems 

    Mamouridis, Valeria (Date of defense: 2015-05-15)

    Different aspects of the bathyal ecosystem have been treated with the final aim to investigate trophic cascades driven by fishery (top-down control), a phenomenon that in bathyal systems has never been studied. This was ...

    Tsunamis provoked by fast granular landslides : 3D laboratory experiments on generation and initial propagation of waves 

    Bregoli, Francesco (Date of defense: 2015-11-12)

    Landslides and debris flows falling into reservoirs, natural lakes, fjords or seas can generate impulsive waves, which can be assimilated to tsunamis. This phenomenon, also known as "landslide tsunami", can be highly ...

    Ultrastructural analysis of odontocete cochlea 

    Morell Ybarz, Maria (Date of defense: 2012-05-04)

    The morphological study of the Odontocete organ of Corti including possible pathological features resulting from sound over-exposure, represent a key conservation issue to assess the effects of acoustic pollution on marine ...

    Utilización de un aroma comercial en pienso para lenguado. Evaluación de su eficacia en el comportamiento y en el crecimiento 

    Reig Puig, Lourdes (Date of defense: 2001-03-30)

    El lenguado (Solea spp.) es una especie interesante para la producción acuícola. Las causas son su valoración gastronómica y la potencial sustitución de otras especies cultivadas en instalaciones en tierra sin modificaciones ...

    Valuation of ecosystem services in the catalan coastal zone 

    Brenner Guillermo, Jorge (Date of defense: 2007-05-04)

    Este estudio parte de la hipótesis que los servicios del ecosistema son cada vez más escasos debido a la seria degradación de su capacidad para proporcionar servicios eficientemente en la costa Catalana, España. El estudio ...

    Water mass variability in the eastern South Pacific and the ventilation of the oxygen minimum zone 

    Llanillo del Río, Pedro José (Date of defense: 2014-10-29)

    This dissertation aims at extending our knowledge of the ESP OMZ through two main approaches. The first approach is based on tracer analysis and inverse modeling techniques. Such techniques are applied to hydrographic ...

    Wind-driven currents in the coastal and equatorial upwelling regions 

    Castellanos Ossa, Paola (Date of defense: 2012-11-12)

    During the last two decades the scientific community has recognised the importance of the tropical Atlantic Ocean and the upwelling regions on the Earth's climate. This recognition has opened new questions such as: ¿What ...