This article presents six probability distributions from the gamma family with three parameters for flood frequency analysis in hydrology. The choice of statistical was driven by its frequent use In Faculty Hydrotechnics, improvement estimation maximum flows, including methodological bases realization a regionalization study linear moments method corrected parameters, researched and is an eleme...

Regional flood frequency entails the pooling of data from sites within a defined region to enhance the estimation of at-site quantiles. Conventional regionalization techniques normally identify a feed set of stations forming a contiguous region. An approach to regional flood frequency analysis that involves each site having a potentially different set of stations included for the at-site estima...

In contrast to the basic assumption of a homogeneous population underlying common approaches flood frequency analysis, events often arise from different runoff-generating processes. many large river basins, diversity these processes within tributary basins and superposition their waves increase complexity statistical modeling. Under circumstances, allocation most effective protection measures r...