Des crues et des échelles

About floods and scales

UMR Sisyphe, CIG, Ecole des Mines de Paris, Fontainebleau

Abstract

Multifractal approaches are now used in hydrology scale changes and should lead to a rational base for this type of analyses. It was displayed that hydrometeorological phenomena have some scale-invariant characteristics, so that normal and extreme events should be considered in the same conceptual frame. The practical consequences are important because it can be assigned to events considered as exceptional a much lower return-time than with classical approaches.