University of Illinois Urbana-Champaign

Stochastic analysis of hydrologic systems

Chow, Ven Te

Permalink

https://hdl.handle.net/2142/90345

Description

Title
Stochastic analysis of hydrologic systems
Author(s)
Chow, Ven Te
Contributor(s)
University of Illinois at Urbana-Champaign
Issue Date
1969-12
Keyword(s)
  • Water resources development
  • Water resources development--Illinois
  • Water management
  • Systems analysis
  • Stochastic processes
  • Synthetic hydrology
  • Watershed studies
  • Precipitation
  • Streamflow
  • Evapotranspiration
  • Storage
  • Water yield
  • Hydrologic models
  • Hydrology
Geographic Coverage
Illinois (state)
Abstract
Hydrologic phenomena are in reality stochastic in nature; that is, their behavior changes with the time in accordance with the law of probability as well as with the sequential relationship between the occurrences of the phenomenon. In order to analyze the hydrologic phenomenon, a mathematic model of the stochastic hydrologic system to simulate the phenomenon must be formulated. In this study, a watershed is treated as the stochastic hydrologic system whose components of precipitation, runoff, storage and evapotranspiration are simulated as stochastic processes by time series models to be determined by correlograms and spectral analysis. The hydrologic system model is then formulated on the basis of the principle of conservation of mass and composed of the component stochastic processes. To demonstrate the practical application of the method of analysis so developed, the upper Sangamon River basin above Monticello in east central Illinois is used as the sample watershed. The watershed system model so formulated can be employed to generate stochastic streamflows for practical use in the analysis of water resources systems. This is of particular value in the economic planning of water supply and irrigation projects which is concerned with the long-range water yield of the watershed.
Publisher
University of Illinois at Urbana-Champaign. Water Resources Center
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/90345
Sponsor(s)/Grant Number(s)
  • U.S. Geological Survey
  • U.S. Department of the Interior
Copyright and License Information
Copyright 1969 held by Ven Te Chow

Owning Collections

Illinois Water Resources Center - Water Management PRIMARY