Copula-Based Joint Flood Frequency Analysis: The Case of Guder River, Upper Blue Nile Basin, Ethiopia

Table 1

Copula function, generating function , and the functional relationship of Kendall’s tau with the copula parameter for Archimedean copulas [10, 45] [46].

Copula methods			Parameter estimation
Ali-Mikhail-Haq
Clayton
Frank
Gumbel-Hougaard

Note. is the Debye function, for any positive integer k, and determined by