将丹麦国家水资源模型缩放为泛欧准三维地下水资源模型

IF 2 4区 地球科学 Q1 GEOLOGY
Lærke Therese Andersen, Anne-Sophie Høyer, Mette Hilleke Mortensen, Lars Troldborg, Klaus Hinsby
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引用次数: 0

摘要

在这项研究中,我们将丹麦的详细模型的水文地层信息升级并简化为泛欧尺度。这是一个更大项目的一部分,该项目旨在开发一个准3d欧洲地下水资源模型,对地下水资源的体积和深度进行统一概述。欧洲数据库的共同尺度选择了一个10公里的格网和最多0.10个水文地层。丹麦的信息是基于国家水资源模型(dk模型),其中的信息更加详细(100米网格,多达26层)。通过计算平均体积和专家评估来减少每个单元的层数,将信息从dk模型传递到准三维模型。在这个过程中,详细的水文地层资料丢失了,否则这些资料可以用于丹麦当地的地下水流动模拟。然而,准三维模型的优势在于它仍然包含了所有水文地层单元的体积,包括饱和和非饱和部分。因此,该模型可以相对精确地计算欧洲地下水资源,从而在10 × 10 km尺度上定量评价整个欧洲的地下水状况。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Scaling the Danish national water resources model for a pan-European quasi-3D groundwater resources model
In this study, we upscale and simplify hydrostratigraphic information from a detailed model for Denmark to a pan-European scale. This is part of a larger project to develop a harmonised overview of the volume and depth of groundwater resources in a quasi-3D European groundwater resource model. A 10 km grid and a maximum of c. 10 hydrostratigraphic layers were chosen as the common scale for the European database. The Danish information is based on the national water resources model (the DK-model), where the information is significantly more detailed (100 m grid and up to 26 layers). Information was transferred from the DK-model to the quasi-3D model by a method involving computations of mean volumes and expert assessment to reduce layers in each cell. In this process, detailed hydrostratigraphic information is lost, which could otherwise be used for local groundwater flow modelling in Denmark. However, the strength of the quasi-3D model is that it still contains the volumes of all hydrostratigraphic units, both the saturated and unsaturated parts. Hence, the upscaled model can contribute to a relatively precise calculation of European groundwater resources for the quantitative assessment of groundwater status across Europe at a 10 × 10 km scale.
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来源期刊
Geus Bulletin
Geus Bulletin GEOLOGY-
CiteScore
2.80
自引率
17.60%
发文量
8
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