Flood Frequency Distribution (FFD 2.1) is free software to analyze flood and estimate Quantile for Different return Periods and Flood frequency relations
Probability Distributions are:
1-Normal Distribution
2-Log Normal Distribution (2p)
3-Gumbel Distribution
4-Racine-Normal Distribution
5-General Extreme Values Distribution (GEV)
6-Gamma Distribution (2p)
7-Log Pearson 3 Distribution
8-Goodrich Distribution
9-LogNormal (3p) Distribution
10-Weibull Distribution (2p)