A seamlessly coupled GIS and distributed groundwater flow model

A seamlessly coupled GIS and distributed groundwater flow model
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无缝耦合的 GIS 和分布式地下水流模型

DOI:
10.1016/j.envsoft.2016.04.007
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发表时间:
2016
影响因子:
4.9
通讯作者:
Wang L
Wang L
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Wang L

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地下水模型与gis的耦合有三种方式,即松散、紧密和无缝。在无缝耦合中,模型代码被编写到GIS中,并在GIS中运行。我们首次以这种方式在GIS中实现了BGS GISGroundwater。它有利于模型的构建和仿真,以及在GIS环境下结果的可视化。该模型由一个二维有限差分地下水流动模型和一个简单的用户界面组成。它可以代表非均质含水层,可变承压和无承压条件,以及分布的地下水补给和抽取。它在易用性和简化模型构建和应用程序过程方面提供了好处。BGS GISGroundwater已针对一系列含水层配置的地下水头剖面的分析解决方案进行了验证。这个模型为更广泛的环境科学家群体降低了进入地下水流动模型的门槛。
There are three approaches for coupling groundwater models with GISs, i.e.loose,tight, andseamless. In seamless coupling a model code is written into, and run from within, a GIS. We implemented BGS GISGroundwater in a GIS in this way for the first time. It facilitates the construction and simulation of the model, and the visualisation of the results all within the GIS environment. The model consists of a 2D finite-difference groundwater flow model and a simple user-interface. It can represent heterogeneous aquifers, variably confined and unconfined conditions, and distributed groundwater recharge and abstraction. It offers benefits in terms of ease of use and in streamlining the model construction and application process. BGS GISGroundwater has been validated against analytical solutions to groundwater-head profiles for a range of aquifer configurations. This model lowers barriers to entry to groundwater flow modelling for a wider group of environmental scientists.
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