Improving groundwater-flow modeling using optimal zoning methods

文化大學機構典藏 CCUR > 環境規劃暨生物資源學院 > 環境設計學院 > 景觀學系所 > 期刊論文 > Item 987654321/2917

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题名:	Improving groundwater-flow modeling using optimal zoning methods
作者:	Tung CP Tang CC Lin YP
贡献者:	景觀系
关键词:	hydraulic conductivity hydraulic head optimization shortest distance method simulated annealing algorithms
日期:	2003
上传时间:	2009-11-30 11:44:43 (UTC+8)
摘要:	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.
關聯:	ENVIRONMENTAL GEOLOGY Volume: 44 Issue: 6 Pages: 627-638
显示于类别:	[景觀學系所] 期刊論文

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