A modelling study of seawater intrusion in the Korba coastal plain, Tunisia

Physics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere Pub Date : 2001-01-01 DOI:10.1016/S1464-1909(01)00017-X

C. Paniconi , I. Khlaifi , G. Lecca , A. Giacomelli , J. Tarhouni

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引用次数: 71

Abstract

A numerical model that treats density-dependent variably saturated flow and miscible salt transport is used to investigate the occurrence of seawater intrusion in the Korba coastal plain of northeastern Tunisia. We examine the effects of and interplay between pumping, artificial recharge, soil/aquifer properties, and the unsaturated zone. The data processing steps undertaken in this study are briefly described, and a critical assessment is given of the data availability and of the requirements for successful monitoring and modeling of seawater intrusion risks in heavily exploited coastal aquifers such as those found in the semi-arid regions of the Mediterranean basin. An idea of the extent of over-exploitation of the Korba aquifer is obtained by examining the pumping and rainfall/infiltration data, and the simulation results support groundwater pumping as the mechanism for and seawater intrusion as the origin of the salt contamination observed in the soils and subsurface waters of the Korba plain.

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突尼斯科尔巴沿海平原海水入侵的模拟研究

采用考虑密度相关变饱和流和混相盐输运的数值模型，研究了突尼斯东北部科尔巴沿海平原海水入侵的发生情况。我们研究了抽水、人工补给、土壤/含水层性质和非饱和带之间的影响和相互作用。简要描述了本研究中所采取的数据处理步骤，并对数据的可用性和成功监测和模拟海水入侵风险的要求进行了关键评估，这些风险来自地中海盆地半干旱区等重度开采的沿海含水层。通过检查抽水和降雨/入渗数据，得出了对科尔巴含水层过度开发程度的概念，模拟结果支持抽水是科尔巴平原土壤和地下水中观测到的盐污染的机制，海水入侵是盐污染的来源。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Physics and Chemistry of the Earth, Part B: Hydrology, Oceans and Atmosphere

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