ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

Uncertainty Estimates for Rainfall-Runoff Model

by Theodore V. Hromadka, II, Williamson and Schmid, Irvine, United States,
Richard H. McCuen, Williamson and Schmid, Irvine, United States,
Robert J. Whitley, Williamson and Schmid, Irvine, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

Almost all rainfall-runoff link-node models in use today involve the subdivision of the catchment into smaller areas, linked together by a system of channel links. These 'link-node' hydrologic models represent the flow processes within the channel links by a translation (moving in time) and an attenuation (reduction of the maximum or peak flow rate) of the runoff (floodwater) hydrograph. The runoff in each subarea is based upon the available rainfall data, modified according to an assumed 'loss rate' due to soil-infiltration, ponding, evaporation, and other effects. The net effect of all these approximations is a vast spectrum of possible modeling structures. Using a stochastic integral equation, many of these rainfall-runoff models can be represented by a single generalized model that is tractable to analysis of the uncertainty in the model structure.

Subject Headings: Hydrologic models | Rainfall-runoff relationships | Mathematical models | Structural models | Uncertainty principles | Stochastic processes | Runoff

Services: Buy this book/Buy this article

 

Return to search