“…Flood frequency analysis has often been used previously in studying the trend of river floods (Beven, 1997;Macdonald and Werritty, 2001;Glaser and Stangl, 2003). Various indices, including skewness coefficient, Monte Carlo experiments distribution functions of normal, threeparameter lognormal, Gumbel, Pearson Type 3, Weibull, Pareto, and uniform, have been introduced to monitor river floods on the basis of the regional flood characteristics (Cunnane, 1988;Burn, 1990Burn, , 1997Bobee et al, 1996;Jain and Lall, 2000;Jun-Haeng et al, 2001;Javelle et al, 2002;Palmer and Raisanen, 2002;Christensen and Christensen, 2003;Mudelsee et al, 2003;Greenbaum et al, 2010;Herget and Meurs, 2010;Naidu et al, 2012). These flood indices are effective in relating flood dynamics to precipitation.…”