文化大學機構典藏 CCUR:Item 987654321/2917
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    Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/2917


    Title: Improving groundwater-flow modeling using optimal zoning methods
    Authors: Tung CP
    Tang CC
    Lin YP
    Contributors: 景觀系
    Keywords: hydraulic conductivity
    hydraulic head optimization
    shortest distance method
    simulated annealing algorithms
    Date: 2003
    Issue Date: 2009-11-30 11:44:43 (UTC+8)
    Abstract: Hydraulic conductivity sometimes exhibits complicated spatial variation over a site. A thorough understanding of the spatial distributions of hydraulic conductivity helps to make deterministic models of groundwater more accurate. This study presents a novel procedure that combines simulated annealing algorithms (SA) and the shortest distance method (SD) with the modular three-dimensional groundwater flow model (MODFLOW). The procedure is applied to a hypothetical site with groundwater-monitoring wells to minimize the difference between simulated and observed hydraulic head for optimal zoning of the spatial distribution of hydraulic conductivity. The results of this optimal zoning method indicate that this new procedure not only improves the efficiency of optimization, but also increases the probability of finding the global optimum, minimizing the errors of the hydraulic head simulated by MODFLOW in two scenarios, one with known and the other with unknown hydraulic conductivity. The results also illustrated that the procedure can effectively determine and delineate hydrogeological zones.
    Relation: ENVIRONMENTAL GEOLOGY Volume: 44 Issue: 6 Pages: 627-638
    Appears in Collections:[Department of Landscape Architecture & Graduate Institute of Landscape Architecture ] journal articles

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