Publication: Estudio de las componentes de la precipitación según orien convectivo y estratiforme en España
Loading...
Official URL
Full text at PDC
Publication Date
2016-02-19
Authors
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad Complutense de Madrid
Citations
Exportar
Abstract
El trabajo presentado como Tesis Doctoral consiste en el estudio de la precipitaci on registrada en super cie por una amplia red de estaciones pluviom etricas que tienen la caracter stica de disponer de registros autom aticos en intervalos horarios. Este estudio se basa en la separaci on de componentes de precipitaci on, estratiforme y convectiva, a partir del conocimiento de la distribuci on de intensidad de precipitaci on en regiones de nidas seg un ciertas caracter sticas clim aticas. El area de estudio es Espa~na Peninsular e Islas Baleares, compuesta por zonas con distintas caracter sticas pluviom etricas, in uidas por su distribuci on geogr a ca, extensi on y topograf a. El efecto marino del Oc eano Atl antico y del Mar Mediterr aneo, la naturaleza semicontinental de la Pen nsula Ib erica (PI), la proximidad al norte de Africa, la penetraci on de masas de aire del norte de Europa o la presencia de cuencas hidrogr a cas y cordilleras monta~nosas, hacen que este area de estudio tenga una gran diversidad en reg menes pluviom etricos. El origen de la precipitaci on puede ser muy diferente seg un la zona. Destaca la in uencia principalmente Atl antica, con frecuentes frentes activos, en el norte, mientras que en el area de Levante destacan los fen omenos mesoescalares. El estudio llevado a cabo en esta Tesis, se ha basado en la utilizaci on de la base de datos de precipitaci on horaria registrada en las estaciones de la Agencia Estatal de Meteorolog a (AEMET). El per odo estudiado es de 17 a~nos (1998-2014) en que se dispone de un n umero su ciente de observatorios con registro horario y el n umero de estaciones utilizadas ha sido 63. Otras estaciones han sido descartadas atendiendo a un control previo de calidad de datos. En el trabajo se han manejado tambi en otras bases de datos, con el objeto de contrastar resultados, y extender el an alisis a la determinaci on de las caracter sticas y posible origen de la precipitaci on seg un sus componentes. De esta forma, se utilizan los datos de precipitaci on proporcionados por el proyecto TOGA-COARE para la regi on de estudio. Por otro lado, se han empleado diferentes ndices de teleconexi on, as como im agenes de sat elite de EUMETSAT. Se ha realizado una regionalizaci on de toda el area, aplicando un an alisis de cl uster a las medidas de precipitaci on acumulada mensual en todos los observatorios. El resultado ha sido el agrupamiento de las estaciones en cinco sectores: Norte (Sector 1), Centro (S2), Levante (S3), Suroeste (S4) y Sureste (S5)...
The presented work as a PhD Thesis consists of the study of recorded precipitation at the surface by an extensive network of meteorological stations that have the characteristic of having automated registrations in hourly intervals. This study is based on the separation of components of precipitation, stratiform and convective, from knowledge of the distribution of precipitation intensity in regions de ned by certain climatic features. The study area is Peninsular Spain and the Balearic Islands, made up of areas with di erent rainfall characteristics, in uenced by their geographic distribution, extent and topography. The marine e ect of the Atlantic Ocean and the Mediterranean Sea, the semi-continental nature of the Iberian Peninsula (PI), proximity to North Africa, the penetration of air masses from the north of Europe or the watershed and mountain ranges presence, make this study area has a great diversity in precipitation patterns. The origin of the precipitation can be very di erent depending on the area. Mainly highlights the Atlantic in uence, with frequent active fronts in the north, while in the Levante area stands mesoscale phenomena. The study conducted in this thesis has been based on the use of hourly rainfall database recorded at stations of the Spanish Meteorological Agency (AEMET). The study period is 17 years (1998-2014) in which there is a su cient number of observatories with hour register and the number of stations used was 63. Other stations have been discarded in response to a prior data quality. Other databases are also handled at work, in order to compare results, and extend the analysis to determine the characteristics and possible origin of the precipitation according to its components. Thus, the precipitation data provided by the TOGA-COARE project for the study region are used. On the other hand, they have used di erent teleconnection indexes and EUMETSAT satellite images. There has been accomplished a regionalization of the whole area, applying a cluster analysis to monthly accumulated rainfall measures at all stations. The result has been the clustering of stations in ve sectors: North (Sector 1), Center (S2), Levante (S3), Southwest (S4) and Southeast (S5).
The presented work as a PhD Thesis consists of the study of recorded precipitation at the surface by an extensive network of meteorological stations that have the characteristic of having automated registrations in hourly intervals. This study is based on the separation of components of precipitation, stratiform and convective, from knowledge of the distribution of precipitation intensity in regions de ned by certain climatic features. The study area is Peninsular Spain and the Balearic Islands, made up of areas with di erent rainfall characteristics, in uenced by their geographic distribution, extent and topography. The marine e ect of the Atlantic Ocean and the Mediterranean Sea, the semi-continental nature of the Iberian Peninsula (PI), proximity to North Africa, the penetration of air masses from the north of Europe or the watershed and mountain ranges presence, make this study area has a great diversity in precipitation patterns. The origin of the precipitation can be very di erent depending on the area. Mainly highlights the Atlantic in uence, with frequent active fronts in the north, while in the Levante area stands mesoscale phenomena. The study conducted in this thesis has been based on the use of hourly rainfall database recorded at stations of the Spanish Meteorological Agency (AEMET). The study period is 17 years (1998-2014) in which there is a su cient number of observatories with hour register and the number of stations used was 63. Other stations have been discarded in response to a prior data quality. Other databases are also handled at work, in order to compare results, and extend the analysis to determine the characteristics and possible origin of the precipitation according to its components. Thus, the precipitation data provided by the TOGA-COARE project for the study region are used. On the other hand, they have used di erent teleconnection indexes and EUMETSAT satellite images. There has been accomplished a regionalization of the whole area, applying a cluster analysis to monthly accumulated rainfall measures at all stations. The result has been the clustering of stations in ve sectors: North (Sector 1), Center (S2), Levante (S3), Southwest (S4) and Southeast (S5).
Description
Tesis inédita de la Universidad Complutense de Madrid, Facultad de Ciencias Físicas, Departamento de Física de la Tierra, Astronomía y Astrofísica II, leída el 19-01-2016