L'Analyse de la fréquence et de l'occurrence temporelle des fortes précipitations d'origine méditerranéenne causes des crues rares en Espagne et dans le Sud de la France

Frequency and temporal analysis of mediterranean heavy rainfalls producing severe floods in Spain and southern France

Département d'Astronomie et Météorologie Faculté de Physique, Université de Barcelone

Abstract

This work shows a first approach to climatic analysis of flood events frequency for Catalonia (NE Spain) and Southeastern part of France from 12th/14th centuries. Systematic data collection in documentary sources allows the reconstruction of continuous flood frequency series. Documentary heritages in Mediterranean area preserve flood information in daily resolution from 12th/4th centuries up to the present, Climatic analysis of these data shows a general frequency pattern of flood characterized by no-systematic episodes. A short number of climatic oscillations (20/40 years duration) can be observed. On the other hand, documentary sources also contain information about hydraulic/hydrologic aspects and anthropogenic impacts.