Guest Editors:
Jayantha Obeysekera, Ph.D., P.E., Research Professor, Florida International University
Jose D. Salas, Ph.D., Emeritus Professor, Colorado State University

Current practices of designing hydraulic structures generally assume that extreme hydrologic events are stationary. Nonstationarity in hydrological records has been a growing concern because of the effect of various factors such as human intervention in river basins, low-frequency climatic variability, and climate change due to increased greenhouse gasses in the atmosphere. The current engineering practice is only beginning to adopt nonstationary methods for hydrologic design practices. Given systematic trends in hydrologic response throughout the world and the projected trends in anthropogenic influences due to human activity, a paradigm shift from current practice to one that incorporates future conditions and uncertainties is necessary. This Special Collection on 'Stochastic Methods for Analyzing Nonstationary Extreme Hydrologic Events' features recent research and case studies on this topic around the globe.