Looking at trends in high flows at a local scale: The case study of Wallonia (Belgium) ; Analyse des tendances dans les débits de crue à l'échelle locale : L'étude de cas de la Wallonie

peer reviewed ; This study aims at analysing trends in high flows by examining annual maxima (AM), peaks over threshold (POTs) and the number of peaks per year (frequency) in 84 catchments across the Walloon region of Belgium. Trends were identified using statistical tests (regression analysis, Mann-Kendall and Pettitt tests). Almost 12 % of the sites show a trend in the magnitude of AM and frequency, and 6% show a trend in the magnitude of POTs. Globally, more negative trends have been detected, but the proportion of positive trends is higher in the Scheldt catchment than in the Meuse catchme... Mehr ...