Abstract

Anderson, C.W., Dwyer, I.J., Nadarajah, S., Reed, D.W., Tawn, J.A. 1994. Maximum reservoir water levels. Proc. British Dam Society Conf. "Reservoir safety and the environment", Thomas Telford Ltd, London, 200–213.

The paper presents the first end-results of the DOE-funded Joint Probability Studies for Reservoir Flood Safety. The methodology combines new techniques for the statistical analysis of multivariate extremes with the use of composite mathematical models of a catchment-reservoir system. Submodels describe precipitation form, snowmelt, catchment runoff, reservoir routing, wave generation and wave run-up. As an example of results, the sensitivity of the T-year maximum water level at an impounding reservoir is explored with respect to such factors as reservoir size, operating policy, and lake orientation. The paper closes with an illustration of the influence that dependence between extremes of wind and rainfall can have on safety assessments for dams exposed to wave attack.