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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Development of GIS interface Con2grid for groundwater model
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Development of GIS interface Con2grid for groundwater model

机译：地下水模型的GIS接口Con2grid的开发

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摘要

Simulation of groundwater behaviour is required to predict water-table fluctuation in response to varying groundwater pumping and recharge conditions. Groundwater models are widely used for simulation of groundwater behaviour. Numerical simulations often involve handling of large-scale spatial and non-spatial input and output datasets. Geographic Information System (GIS) provides an integrated platform to manage, analyse and display these datasets and facilitates modelling efforts in data compilation, calibration, prediction and display of results. Groundwater models, such as MODFLOW, needs datasets of various parameters such as surface elevation, bottom elevation, percolation, seepage, etc. in ASCII format. Preparation of input riles of these parameters is a difficult task and time-consuming, which can be made simple with the use of GIS. However, an interface program is necessary to couple the GIS with the groundwater model. An attempt was made to develop an interface for preparing the data file required for MODFLOW. ArcInfo interface Con2grid for groundwater flow model PMWIN was built as an extension for facilitating the simulation of groundwater behaviour. The extension includes preprocessing of spatially distributed (point, line and polygon) data for model input and post-processing of model output. With the help of ArcInfo interface, any coverage of spatially distributed data can be converted into ASCII riles of user-defined grid dimensions. The pre- and post-processing capabilities of Con2grid were demonstrated for simulation of groundwater behaviour in western Indo-Gangetic Plains, Uttar Pradesh, India.
机译：需要模拟地下水行为来预测地下水位波动，以响应变化的地下水抽水和补给条件。地下水模型被广泛用于模拟地下水行为。数值模拟通常涉及处理大型空间和非空间输入和输出数据集。地理信息系统（GIS）提供了一个集成的平台来管理，分析和显示这些数据集，并简化了数据汇编，校准，预测和结果显示中的建模工作。地下水模型（例如MODFLOW）需要使用ASCII格式的各种参数的数据集，例如地表高程，底部高程，渗流，渗流等。准备这些参数的输入规则是一项艰巨的任务，而且很耗时，可以通过使用GIS使其变得简单。但是，需要使用接口程序将GIS与地下水模型耦合。试图开发一个接口来准备MODFLOW所需的数据文件。用于地下水流模型PMWIN的ArcInfo接口Con2grid的构建是为了简化地下水行为的模拟而进行的扩展。该扩展包括用于模型输入的空间分布（点，线和面）数据的预处理和模型输出的后处理。借助ArcInfo界面，可以将任何空间分布数据的覆盖范围转换为用户定义的网格尺寸的ASCII码格式。演示了Con2grid的预处理和后处理能力，以模拟印度北方邦印度西部恒河平原的地下水行为。

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