HYDROLOGY

Author: STEFANO LUCIA DE.
Year: 2004.
University: COMPLUTENSE DE MADRID [More theses of this university] [www.ucm.es].
Place of defense: FACULTAD DE CC. GEOLOGICAS.
Place of preparation: FACULTAD DE CIENCIAS GEOLOGICAS.

Summary: The thesis of this paper develops a methodology for assessing key aspects of water management in Europa.El objective of the assessment was to analyze the commitment of governments to adopt the principles of integrated river basin management promoted by the Water Framework Directive (DMA) in the European Union and several international initiatives inspired by the concept of sustainable development. The assessment has focused on developing component model Response Forces Matrices-Presiones-Estado -Impacto -Respuesta. We test the validity of our methodology in 20 European states, through a data collection campaign conducted between November 2002 and January 2003.El critical analysis of the data collected allowed us to collect a series of recommendations for future improvements of this methodology. The development of the data enabled us to make numerous findings regarding each country, and also identify interesting points of convergence and divergence between countries and trends related to its geographical position and its geopolitical situation. In the future, our methodology can be used to design an evaluation of policies on water in other sets relatively homogeneous country (eg Maghreb), also taking into account regional agreements específicosw each geopolitical area. In Europe, it would be very interesting to return to our methodology in the country and evaluated, according to the schedule of applications of the DMA, in order to detect and measure any significant change in water management.

Author: SANZ MARTÍNEZ DAVID.
Year: 2004.
University: COMPLUTENSE DE MADRID [More theses of this university] [www.ucm.es].
Place of defense: FACULTAD DE CIENCIAS GEOLÓGICAS.
Place of preparation: FACULTAD DE CIENCIAS GEOLÓGICAS.

Summary: The purpose of this research was to determine the operating system hydrogeological Channel Oriental.Para this, there has been a hydrogeological study to characterize the system starting with the objectives propuestos.La methodology has been basically focused on a bibliographic and data collection, of a different nature, during the inventory of points agua.Todo this process has allowed. 1. Redefine units of the hydrogeological system Channel Eastern characterize its geometry and hydrogeological relations between them. Starting with the study based on 464 columns of lithological polls, compiled in the inventory of water points, and the literature cited in the text and leaves of the geological series MAGNA have been redefined 9 hydrogeological units depending on their characteristics litoestratigráficas, ranking in the aquifer, acuítardo and acuífugo, its geometry, its boundary conditions, hydrodynamic characteristics and behavior hydrogeological. These units are subject to the provision in the three domains hydrogeological, which are a consequence of global tectonics, and are consistent with the behavior on the flow of such underground units. 2. Contribute to the knowledge of the operation of the hydrogeological system. It has been dealt with the knowledge of the operation hydrogeological system in the permanent regime and changes in it because of the intense exploitation of aguasa underground determining the boundary conditions of the hydrogeological system.

Author: MORAL MARTOS FRANCISCO.
Year: 2004.
University: PABLO DE OLAVIDE [More theses of this university] [www.upo.es].
Place of defense: FACULTAD DE CIENCIAS EXPERIMENTALES.
Place of preparation: FACULTAD DE CIENCIAS EXPERIMENTALES (DEPARTAMENTO DE CIENCIAS AMBIENTALES).

Summary: This work aims to study the hydrogeological most relevant aspects of the Sierra de Segura, a mountainous mass of about 3000 km2 located in the headwaters of rivers Guadalquivir Segura (provinces of Jaen, Grenada and Albacete). We have collected and analyzed the existing records of rainfall and temperature in order to quantify precipitation, evapotranspiration and runoff, as well as to understand the spatial and temporal variability of these components of the water cycle. development of a hydro-geological mapping at 1:100.000 and numerous geological cuts. On the other hand, have been analyzed and cartografíado forms of relief more significant from the point of view hydrogeological (outstanding karst forms) has been established and its relationship with aspects of particular interest, such as the location of major recharge areas of aquifers and infiltration rates on the land carbonáticos. In addition, it has conducted a comprehensive study on the regional hydrogeology of the area, which has included the preparation of an inventory of water points, identification of the different hydrogeological units of the Sierra de Segura, describing its geometry, its operation hydrological, physicochemical characterization of the groundwater and the realization of the water balance of each unit. Finally, it has an impact on the knowledge of hydrodynamics of aquifers (construction of stations and control capacities, study hidrograma, classification systems), the hydrochemistry of groundwater (role of CO2 influence of climate modeling hydrochemistry) and the use of natural layout techniques (stable isotopes of water balance chlorides and heat balance).

Author: GUICHARD ROMERO DELVA DEL ROCÍO.
Year: 2005.
University: POLITÉCNICA DE VALENCIA [More theses of this university] [www.upv.es].
Place of defense: E.T.S.I CAMINOS CANALES Y PUERTOS.
Place of preparation: E.T.S.I. CAMINOS, CANALES Y PUERTOS.

Summary: In recent decades, one of the concerns of the studies of hydrology has been the relationship between space and variability of rain and the response hydrological basins. Thus, the literature on the topic can be found a variety of approaches to address this acuestión: using precipitation data measured directly, radar and / or synthetic fields rains. As for the type of model used, is from theoretical attempts to implementation of various hydrological models, especially those distributed. The objective of the research done in this dissertation is to contribute to the understanding of the hydrological response and its relationship with the characteristics of the episodes of rain, specifically their variability in space and time. It has decided to use the model distributed TETIS and model generation episodes synthetic rain Raingen focusing specifically on the peak flow and volume of hidrogramsas flood caused by the events generated to be incorporated into the distributed model. The basin has been studied the Rambla del Poyo, located in the Mediterranean area of Spain. The investigation began with an analysis of factors related to reduction of area events synthetic and one of the most important events of those registered in the Community of Valencia, in October 2000. Becoming stressed that the reduction factors obtained with isolated events are a herramientsa very useful for the study of variabilidada space delos rainy episodes: while those calculated through ceilings are in practice used for hydrologic design. Subsequently, based on episodes synthetic explores different scenarios as to the density of stations in the rain: 1 km2/pluviómetro, 4 km2/pluviómetro, 16 km2/pluviómetro and 64 km2/pluviómetro considering basins between 2 km2 and 421 km2. It also explores the response of the hydrological basins where the distributed model is powered with hietograma half. In all simulations are considered two conditions in terms of soil characteristics, porpias of watersheds and analyzed soil "constant", obtained with the parameters of the average real watershed. In the case partícular studied and considering that the flow closer to the real, which has been called "reference" are relevant to the condition 1 km2/pluviómetro covers are amedida the watershed is the largest considering the fact hietograma half leads to significant errors. It also notes that as the distance between stations is increasing, it is that the density is less rain, the difference between the calculated and flow or volume flow or reference volumes also increases. However, the density of 4 km2/pluviómetro obtained still flows quite close to the reference. Lastly, from the model parameters Raingen have been deducted two indexes: the Convectividad space () and Severity (). The index convectidad space () is a dimensionless parameter that allows characterize the spatial extent of the rains in the region, considering the focus of convective cells. While the severity index (a measure of the accumulated rainfall average for a rainy event rates were obtained with the parameters of the watershed of the promenade of Poyo, as well as the actual coverage of the cells in this basin. results show a trend of decrease dela coverage of the cells with respect to 8 l increm 51c ento parameter, namely events cells more dispersed, ie more covectivos, tend to cover a smaller area in the basin. was a further notes trend growth peak flow as the index is greater severity. Relating rates convectividad space () with areal reduction factors (FRA) is the tendency to decrease in the potential for over FRA , is similar to the variation of the FRA with respect to the area of the watershed: so that the events, bigger, this is more convective, FRA has a lower magnitude, which confirms the validity of, as a indicator of the spatial variability of storms. Regarding Severity Index (it is considered that could be used to generate events with the model Raingen of some order of magnitude, namely the relationship to the concept of return period.