GroMoPo Metadata for Maknassy basin model

To demonstrate the capabilities of Geographic Information System (GIS) techniques and numerical modeling for groundwater resources development in arid areas, specifically for the demarcation of suitable sites for the artificial recharge of groundwater aquifers, a study was carried out in the Maknassy basin, which is located in Central Tunisia. Thematic maps were prepared using a Hydrogeological Information System. All of the thematic layers were integrated using an ARCVIEW based model, enabling a map showing artificial recharge zones to be generated. Meanwhile, a ground water model, MODFLOW-2001, was used to estimate the effect of such water recharge on the piezometric behavior of the hydrological system. Additionally, these simulations helped manage ground water resources in the study area. The GIS-based demarcation of artificial zones developed in this study was based on logical conditions and reasoning, so that the same techniques, with appropriate modifications, could be adopted elsewhere, especially in similar aquifer systems in arid areas where the occurrence of groundwater is restricted and subject to a greater complexity. The efficiency of artificial recharge may be tested using hydrogeological modeling by simulating the effect of a potential groundwater refill. (C) 2010 Elsevier Ltd. All rights reserved.

为展示地理信息系统（Geographic Information System, GIS）技术与数值模拟方法在干旱地区地下水资源开发中的应用潜力，尤其是用于划定地下水含水层人工补给适宜场地的实践路径，研究团队于突尼斯中部的马克纳西（Maknassy）盆地开展了此项研究。研究团队依托水文地质信息系统制作了系列专题地图，并通过基于ARCVIEW的模型整合所有专题图层，最终生成了人工补给适宜分区地图。与此同时，本研究采用MODFLOW-2001地下水模型，评估此类人工补给措施对水文系统测压水位动态特征的影响。此外，上述模拟结果亦为研究区地下水资源的管理提供了支撑。本研究开发的基于GIS的人工补给分区划定方法以逻辑条件与推理逻辑为核心依据，因此该技术经适当适配修改后，可推广至其他区域，特别是干旱地区内地下水赋存条件受限、水文过程更为复杂的同类含水层系统中。人工补给方案的实施效率，可通过水文地质模拟——即模拟潜在地下水回灌的影响——进行验证。本研究版权归2010年爱思唯尔有限公司（Elsevier Ltd.）所有，保留所有权利。