1. Chair in Statistical Hydrology Hydro-Quebec/NSERC, Univ. of Quebec, INRS-ETE, 490 rue de la Couronne, Quebec, QC, Canada G1K 9A9 (corresponding author). E-mail: salaheddine_el-adlouni@ete.inrs.ca
2. Univ. of Quebec, INRS-ETE, 490 rue de la Couronne, Quebec, QC, Canada G1K 9A9.