Wetbud – A Free Water Budget Modeling Tool for Created Wetland Design

Stephen F. Stone, Z. Agioutantis, G. Whittecar, W. Daniels, T. Thompson, Kerby M. Dobbs
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引用次数: 1

Abstract

A common result of Environmental Impact Assessments associated with mining projects is the construction of new wetlands in areas disturbed by mining operations. Where appropriate, this mitigation may be considered an integral part of the mine reclamation process under the principles of sustainable development in the minerals industry. Wetbud is a new tool for estimating wetland water budgets using available weather data and site-specific topographic, soil and geohydrologic data, coupled with mass balance mathematics. Wetbud is primarily intended as a planning tool for use in the design of created wetlands, but it can also be applied to native wetlands or wetland restoration sites where the required input parameters can be specified. Wetbud can be run in its basic form where wetland topography, soil parameters and groundwater flux are simplified, or in the advanced form, where these parameters are included in a more complex approach via integration of the MODFLOW package, a free 3D program that was developed by the United States Geological Survey. Both versions can also include overbank flow hydrology sources and the advanced form can also model sloping and irregular topography. The program downloads weather data from the nearest applicable station and selects appropriate wet-normal-dry (W-N-D) years following a modest user data clean-up step. Wetbud also has the ability to utilize existing short-term (e.g. 6 to 9 months) groundwater data from an up-gradient well to simulate longer-term groundwater level inputs for the selected W-N-D years. In addition, Wetbud features a “Wizard” version that comes pre-loaded with 14 pre-selected weather data sets for all areas of Virginia that can develop a simple monthly water budget in less than 15 minutes – a feature that could be expanded anywhere geographically with historic weather data.
一个免费的水预算建模工具创建湿地设计
与采矿项目有关的环境影响评估的一个常见结果是在受采矿作业干扰的地区建造新的湿地。在适当情况下,根据矿业可持续发展的原则,这种缓解可视为矿山复垦过程的一个组成部分。Wetbud是一个估算湿地水量预算的新工具,使用可用的天气数据和特定地点的地形、土壤和地质水文数据,再加上质量平衡数学。Wetbud主要用作设计人造湿地的规划工具,但它也可以应用于可以指定所需输入参数的天然湿地或湿地恢复地点。Wetbud可以以其基本形式运行,其中湿地地形,土壤参数和地下水通量被简化,或在高级形式,其中这些参数包括在一个更复杂的方法通过MODFLOW软件包的集成,一个免费的3D程序,由美国地质调查局开发。这两种版本还可以包括河岸水流水源,高级形式也可以模拟倾斜和不规则的地形。该程序从最近的适用站点下载天气数据,并在适度的用户数据清理步骤之后选择适当的湿-正常-干(W-N-D)年。Wetbud还能够利用现有的短期(例如6至9个月)上梯度井的地下水数据来模拟选定的W-N-D年的长期地下水水位输入。此外,Wetbud还提供了一个“向导”版本,预装了14个预先选择的天气数据集,这些数据集适用于弗吉尼亚州的所有地区,可以在不到15分钟的时间内制定一个简单的月度水预算,这个功能可以在地理上的任何地方扩展,使用历史天气数据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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