In this paper, we introduce GIS-SWIAS, a novel generalized ArcGIS ArcToolbox that helps to analyze seawater intrusion (SWI) status and vulnerability at aquifer scale (SWIAS). It is a user-friendly tool that can be applied to any aquifer and is fully integrated in the ArcGIS environment, which is a widely available software tool. It is the first ArcGIS tool with these characteristics focusing on SWI analyses that we can find in the literature. GIS-SWIAS is able to deal with georeferenced information; it is easy to introduce the required data (inputs) and to efficiently perform the demanding computational operations required. Its outputs are in the form of shapes, reports, and images (maps, conceptual cross sections, and time series of lumped indices) to summarize the magnitude, intensity, and temporal evolution of SWI within an aquifer for specific dates or by showing statistics for a chosen time period. It can be applied to assess historical SWI dynamic in cases where there is no groundwater flow model. In those cases, the spatial distribution is assessed by applying simple interpolation techniques. Nevertheless, if we want a rational quantitative analysis of the sustainability of alternative management scenarios to the SWI problem, the GIS-SWIAS tool requires that information on hydraulic head and chloride concentration distribution is generated from simulations of their impacts by a calibrated density-dependent flow model. In such cases, adaptation strategies to potential future scenarios—whose distributed impacts have to be propagated within the previously calibrated models—could usefully be analyzed and compared using this tool. Given all these ways that the GIS-SWIAS tool can be applied, it provides a valuable tool for both the researcher and technician to assess SWI dynamics and aquifer resilience under different scenarios. It can support the decision-making process by helping to make a rational selection of sustainable management strategies. Its performance for the analyses of historical and potential future scenarios has been tested and confirmed in two case studies described in previous research works.

中文翻译：

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GIS-SWIAS：汇总含水层规模的海水入侵状况和脆弱性的工具

在本文中，我们介绍了GIS-SWIAS，这是一种新颖的广义ArcGIS ArcToolbox，可帮助分析含水层规模（SWIAS）的海水入侵（SWI）状态和脆弱性。它是一种用户友好的工具，可以应用于任何含水层，并且已完全集成在ArcGIS环境中，这是一种广泛使用的软件工具。这是第一个具有这些特征的ArcGIS工具，专注于我们可以在文献中找到的SWI分析。GIS-SWIAS能够处理地理参考信息；很容易引入所需的数据（输入）并有效地执行所需的苛刻的计算操作。其输出形式为形状，报告和图像（地图，概念性横截面以及集总索引的时间序列），以概括其大小，强度，特定日期或通过显示选定时间段内的统计数据在含水层中SWI的时间变化。在没有地下水流模型的情况下，它可以用于评估历史SWI动态。在这些情况下，可通过应用简单的插值技术来评估空间分布。但是，如果我们要对SWI问题的替代管理方案的可持续性进行合理的定量分析，则GIS-SWIAS工具要求通过校准的密度相关流模拟水力压头和氯化物浓度分布的信息来生成有关水压头和氯离子浓度分布的信息。模型。在这种情况下 使用此工具可以有效地分析和比较潜在的未来方案的适应策略，这些方案必须在先前校准的模型中传播其分布的影响。考虑到可以使用GIS-SWIAS工具的所有这些方式，它为研究人员和技术人员提供了一种宝贵的工具，用于评估在不同情况下的SWI动态和含水层的弹性。它可以通过帮助合理选择可持续管理策略来支持决策过程。在先前研究工作中描述的两个案例研究中，已经测试并证实了其在分析历史和未来潜在场景方面的性能。它为研究人员和技术人员提供了一种宝贵的工具，用于评估不同情况下的SWI动态和含水层的弹性。它可以通过帮助合理选择可持续管理策略来支持决策过程。在先前研究工作中描述的两个案例研究中，已经测试并证实了其在分析历史和未来潜在场景方面的性能。它为研究人员和技术人员提供了一种宝贵的工具，用于评估不同情况下的SWI动态和含水层的弹性。它可以通过帮助合理选择可持续管理策略来支持决策过程。在先前研究工作中描述的两个案例研究中，已经测试并证实了其在分析历史和未来潜在场景方面的性能。