Development of River-Stage Tomography for Characterizing Groundwater Basins

用于表征地下水盆地的河流水位层析成像技术的发展

基本信息

  • 批准号:
    1014594
  • 负责人:
  • 金额:
    $ 46.4万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2010
  • 资助国家:
    美国
  • 起止时间:
    2010-10-01 至 2017-04-30
  • 项目状态:
    已结题

项目摘要

Jim Tian-Chyi Yeh, Univ. of ArizonaDevelopment of River-State Tomography for Characterizing Groundwater BasinsThe achievable reliability in modeling fluxes and transport in groundwater basins would be greatly enhanced by a practical method for reliable basin-scale aquifer characterization. Where it is not practical to conduct pumping tests to induce stresses throughout a basin stretched over hundreds of square kilometers, the downstream passage of river hydrographs create aquifer stresses that can be used. The large area of influence, frequency of occurrence, and spatial mitigation of the excitation make river stage variation an ideal energy source for use in basin-scale hydraulic tomographic surveys to map aquifer heterogeneity where aquifer responses are monitored. Previous work has demonstrated the viability of a 2D depth-average coupled river and groundwater model for groundwater basin characterization and this new project is now engaged in expanding on this past work to develop a 3D model for aquifer characterization. The approach is being tested and validated through application to the intensely instrumented Cho-Shui River alluvial fan in central western Taiwan. The method starts from an immense amount of data to determine the stress induced by river-stage variation at various locations sequentially and aquifer responses recorded in numerous wells. It then employs a stochastic parameter estimating procedure using geo-statistically-based methodology to estimate parameters for representing a heterogeneous aquifer. The approach imports the tomography paradigm by recognizing that the recurrent nature of temporally and spatially variable precipitation-driven hydrologic processes provides non-fully overlapping information for estimating aquifer hydrogeologic parameters. The work is targeted to have broad impacts through greater understanding of the interactions between rivers and groundwater basins that would support water resources management and greater environmental protection through conjunctive water use. Practitioners will also greatly benefit by having a non-invasive technology for characterizing basin hydrologic heterogeneity and the uncertainty associated with the characterization. They will also gain a valuable tool for use in evaluating the effects of climate change on groundwater resources. An effort will be made to publicize and explain the methodology through communications that would facilitate applying these contributions.
Jim Tian-Chyi Yeh,亚利桑那大学开发用于表征地下水流域的河流状态层析成像通过一种用于可靠的流域尺度含水层表征的实用方法,将大大提高模拟地下水流域通量和输运的可靠性。 在不实际的地方进行抽水试验,以在整个流域超过数百平方公里的范围内产生应力,河流水文线的下游通道产生可利用的含水层应力。 大面积的影响,发生的频率,和空间缓解的激励使河流水位变化的理想能源,用于在流域规模的水力层析成像调查,以映射含水层的异质性,含水层的响应进行监测。 以前的工作已经证明了2D深度平均耦合河流和地下水模型的可行性,地下水盆地的特性,这个新项目现在正在扩大过去的工作,开发一个三维模型含水层特性。 该方法正在测试和验证,通过应用于强烈的仪器浊水溪冲积扇在台湾中西部。 该方法从大量的数据开始,确定由河流水位变化引起的应力在不同的位置顺序和含水层响应记录在许多威尔斯。 然后,它采用了随机参数估计程序,利用地质统计学为基础的方法来估计参数,代表一个非均质含水层。 该方法通过认识到时间和空间可变的降水驱动的水文过程的经常性,为估计含水层水文地质参数提供了非完全重叠的信息,从而导入了层析成像范例。 这项工作的目标是通过更好地了解河流和地下水流域之间的相互作用产生广泛的影响,从而支持水资源管理,并通过联合用水加强环境保护。 从业者也将大大受益于有一个非侵入性的技术,用于表征流域水文异质性和与表征相关的不确定性。 他们还将获得一个宝贵的工具,用于评估气候变化对地下水资源的影响。 将努力通过有助于应用这些贡献的通信来宣传和解释这一方法。

项目成果

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Tian-Chyi Yeh其他文献

Tian-Chyi Yeh的其他文献

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{{ truncateString('Tian-Chyi Yeh', 18)}}的其他基金

Collaborative Research: Data Fusion for Characterizing and Understanding Water Flow Systems in Karst Aquifers
合作研究:用于表征和理解岩溶含水层水流系统的数据融合
  • 批准号:
    1931756
  • 财政年份:
    2020
  • 资助金额:
    $ 46.4万
  • 项目类别:
    Standard Grant
Collaborative Research: River Stage Tomography for Automatic Characterization of Fluxes between Surface and Groundwater Reservoirs: A Pilot Study
合作研究:用于自动表征地表水库和地下水库之间通量的河流阶段层析成像:试点研究
  • 批准号:
    0450388
  • 财政年份:
    2005
  • 资助金额:
    $ 46.4万
  • 项目类别:
    Standard Grant
Collaborative Research: SEI (EAR): Adaptive Fusion of Stochastic Information for Imaging Fractured Vadose Zones
合作研究:SEI (EAR):随机信息的自适应融合,用于破裂渗流区成像
  • 批准号:
    0431079
  • 财政年份:
    2004
  • 资助金额:
    $ 46.4万
  • 项目类别:
    Standard Grant
Collaborative Research: Fusion of Tomography Tests for DNAPL Source Zone Characterization: Technology Development and Validation
合作研究:DNAPL 源区表征的断层扫描测试融合:技术开发和验证
  • 批准号:
    0229717
  • 财政年份:
    2003
  • 资助金额:
    $ 46.4万
  • 项目类别:
    Continuing Grant
Three-Dimensional Modeling of Contaminants Transport in Subsurface Environment: From the Land Surface Through the Unsaturated Zone and Fully Saturated Aquifers
地下环境中污染物迁移的三维建模:从地表到非饱和带和完全饱和含水层
  • 批准号:
    9317009
  • 财政年份:
    1994
  • 资助金额:
    $ 46.4万
  • 项目类别:
    Continuing Grant
Research Initiation: Effects of field heterogeneity on see-page from open channels
研究启动:场非均质性对明渠渗流的影响
  • 批准号:
    8696060
  • 财政年份:
    1986
  • 资助金额:
    $ 46.4万
  • 项目类别:
    Standard Grant
Research Initiation: Effects of field heterogeneity on see-page from open channels
研究启动:场非均质性对明渠渗流的影响
  • 批准号:
    8504980
  • 财政年份:
    1985
  • 资助金额:
    $ 46.4万
  • 项目类别:
    Standard Grant

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