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    • Hydrology and Water Resources in Arizona and the Southwest, Volume 04 (1974)
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    Uncertainty in Sediment Yield from a Semi-Arid Watershed

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    Author
    Smith, J. M.
    Fogel, M.
    Duckstein, L.
    Affiliation
    Systems & Industrial Engineering, University of Arizona, Tucson, Arizona 85721
    Watershed Management and Systems & Industrial Engineering, University of Arizona, Tucson, Arizona 85721
    Issue Date
    1974-04-20
    Keywords
    Hydrology -- Arizona.
    Water resources development -- Arizona.
    Hydrology -- Southwestern states.
    Water resources development -- Southwestern states.
    Planning
    Land management
    Land use
    Water resources
    Land development
    Conservation
    Land classification
    Land resources
    Natural resources
    Evaluation
    Land appraisals
    Systems analysis
    Simulation analysis
    Social aspects
    Decision making
    Economics
    Land use planning
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    Rights
    Copyright ©, where appropriate, is held by the author.
    Collection Information
    This article is part of the Hydrology and Water Resources in Arizona and the Southwest collections. Digital access to this material is made possible by the Arizona-Nevada Academy of Science and the University of Arizona Libraries. For more information about items in this collection, contact anashydrology@gmail.com.
    Publisher
    Arizona-Nevada Academy of Science
    Journal
    Hydrology and Water Resources in Arizona and the Southwest
    Abstract
    The paper presents a stochastic model for the prediction of sediment yield in a semi -arid watershed based on rainfall data and watershed characteristics. Uncertainty stems from each of the random variables used in the model, namely, rainfall amount, storm duration, runoff, and peak flow. Soil Conservation Service formulas are used to compute the runoff and peak flow components of the Universal Soil Loss Equation. A transformation of random variables is used to obtain the distribution function of sediment yield from the joint distribution of rainfall amount and storm duration. The model has applications in the planning of reservoirs and dams where the effective lifetime of the facility may be evaluated in terms of storage capacity as well as the effects of land management on the watershed. Experimental data from the Atterbury watershed is used to calibrate the model and to evaluate uncertainties associated with our uncertain knowledge of the parameters of the joint distribution of rainfall and storm duration.
    ISSN
    0272-6106
    Collections
    Hydrology and Water Resources in Arizona and the Southwest, Volume 04 (1974)

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