Areal prediction of annual floods generated by two distinct processes

Abstract

The compounded Gumbel distribution is found to provide a good description of flood frequency in areas where the annual peak flows are produced by both snowmelt and rainfall. The spatial variation of the flood generating processes can be represented by trend surfaces fitted to the compounded Gumbel parameters. This method offers a practical tool to predict flood frequencies for ungauged basins in such areas. © 1984 Taylor & Francis Group, LLC.