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首页> 外文期刊>First Break >Mapping the fresh-saltwater interface in the coastal zone using high-resolution airborne electromagnetics
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Mapping the fresh-saltwater interface in the coastal zone using high-resolution airborne electromagnetics

机译：使用高分辨率空机电磁学绘制沿海地区的新鲜盐水界面

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A major part of the drinking water in the Netherlands is derived from groundwater stored in coastal and inland aquifers. The water occurs through natural processes, but in some areas artificial infiltration of lake and river water in the coastal sand dunes is necessary to support the demand for clean drinking water in the densely populated country. In fact, artificial infiltration along the Dutch coast has been common practice for decades and is an essential part of the drinking water supply. The sustainability of this approach demands detailed knowledge of the fresh-saltwater balance to avoid salinization of the aquifers. The availability and quality of the groundwater are typically estimated using ground-water models, which can be used to forecast the behaviour of groundwater systems to external stresses, such as climate change. The reliability of groundwater models hinges on measurements such as hydraulic heads, stream flow rates, permeability of the subsurface and in coastal regions the boundary conditions for the coastal edge of the model. Here, a limiting factor is often the lack of offshore data since it is logistically difficult and costly to drill in the seabed.
机译：荷兰饮用水的主要部分来自地下水，存储在沿海和内陆含水层。水发生通过自然过程，但在一些地区，沿海沙丘的湖泊和河流的人工浸润是必要的，以支持密集的国家的清洁饮用水需求。事实上，沿着荷兰海岸的人工渗透几十年来普遍做法，是饮用水供应的重要组成部分。这种方法的可持续性要求详细了解新鲜盐水平衡以避免含水层的盐渍化。地下水的可用性和质量通常使用地水模型估计，可用于预测地下水系统对外部应力的行为，例如气候变化。地下水模型对液压头，流量流速，地下流动率，沿海地区的渗透率和沿海地区的边界条件的测量的可靠性。这里，限制因素往往是缺乏海上数据，因为它在逻辑上困难且昂贵地在海底上钻。

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