HR: 10:50h
AN: H52A-02 INVITED     [Abstracts]
TI: Understanding the Dynamics of Droughts Based on Stochastic Approaches
AU: * Salas, J D
EM: jsalas@engr.colostate.edu
AF: Colorado State University, Department of Civil Engineering B208 Engr. Bldg., Fort Collins, CO 80523
AB: Drought is an extreme atmospheric and geophysical phenomenon that occurs from time to time in many parts of the world with significant impacts and consequences to society and the environment. The temporal and spatial evolution of such phenomenon is generally complex. Understanding drought dynamics has been a subject of much interest to hydrologists and water resources specialists for many decades. The purpose of this presentation is to examine alternative stochastic approaches for characterizing droughts, ranging from empirical statistical analysis of the historical data, statistical analysis of generated data, and mathematical closed form solutions. Particularly, we will focus on recurrence properties related to drought duration, magnitude, and intensity, as well as drought risk. We will illustrate the various approaches using streamflow data of some streams in Colorado.
DE: 1821 Floods
DE: 1833 Hydroclimatology
DE: 1860 Runoff and streamflow
DE: 1869 Stochastic processes
SC: Hydrology [H]
MN: 2005 Joint Assembly