We use point processes theory to describe the asymptotic distribution of all upper order statistics for observations collected at renewal times. As a corollary, we obtain limiting theorems for corresponding extremal processes.

A procedure, based on the distribution of the largest streamflowdrought deficit and on the composite hydrograph recession curve, is proposed for the derivation of the n-year streamflow drought,for the cases for which the assumption of identical deficit and duration frequencies is not valid, for...