Climate Change and Temporal and Spatial Evolution of the Multifractal Universal Parameters in Ebro River Basin

Valencia Delfa, José Luis; Tarquis Alfonso, Ana Maria; Saa Requejo, Antonio y Gascó Montes, José María (2010). Climate Change and Temporal and Spatial Evolution of the Multifractal Universal Parameters in Ebro River Basin. En: "European Geosciences Union General Assembly 2010", 02/05/2010 - 07/05/2010, Viena, Austria.

Descripción

Título: Climate Change and Temporal and Spatial Evolution of the Multifractal Universal Parameters in Ebro River Basin
Autor/es:
  • Valencia Delfa, José Luis
  • Tarquis Alfonso, Ana Maria
  • Saa Requejo, Antonio
  • Gascó Montes, José María
Tipo de Documento: Ponencia en Congreso o Jornada (Póster)
Título del Evento: European Geosciences Union General Assembly 2010
Fechas del Evento: 02/05/2010 - 07/05/2010
Lugar del Evento: Viena, Austria
Título del Libro: Geophysical Research Abstracts
Fecha: 2010
Volumen: 12
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Matemática Aplicada a la Ingeniería Agronómica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Multifractal techniques are applied to the study of rainfall daily time series over 14 stations from Ebro river Basin over the second half of XX century. The aim is to determine how climate change affects the evolution of the probability distribution of daily precipitation, through the values of universal multifractal parameters: C1; ; H y s for different periods of time. These will offer direct explanations of the shape of the distribution, especially about the extreme events: C1 is the mean intermittency codimension. When C1 increases the precipitation becoming less continuous and more sporadic in time. Therefore there is an increase of extremes. ; is a mesure of multifratility so an increase of it corresponds to a larger variation of the range of precipitation intensity, and thus also of extremes. H is the degree of non-conservation of the field, which measures the scale dependency of the average field. s; the maximal probable singularity that can be observed on a unique sample. It’s directly related to the ratio of the range and the mean of field. From the data collected, we perceive a decline in average rainfall, from 1980. But how is affected the global parameters in this situation?. Results vary according to different rainfall stations.

Más información

ID de Registro: 8065
Identificador DC: http://oa.upm.es/8065/
Identificador OAI: oai:oa.upm.es:8065
Depositado por: Memoria Investigacion
Depositado el: 03 Ene 2012 11:47
Ultima Modificación: 20 Abr 2016 16:59
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