Sensitivity of permissible aquifer recharge rate to hydrogeological and well design parameters

IF 5.9 1区地球科学 Q1 ENGINEERING, CIVIL

Journal of Hydrology Pub Date : 2025-05-01 DOI:10.1016/j.jhydrol.2025.133438

Ranveer Kumar, Anurag Ohri, Shishir Gaur

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Abstract

The maximum injection rate to an aquifer for a given operational time, hydrogeological and well characteristics, and under the constraints of a permissible head is defined as the Permissible Aquifer Recharge Rate (PARR). A local and global sensitivity analysis (Sobol’s Indices) has been presented to address the important hydrogeological and well parameters in determining PARR for confined and unconfined aquifers. A novel methodology to determine PARR for 3D numerical groundwater models has been discussed, and its implementation in Lower Ain Valley has been presented. PARR’s sensitivity varies with specific parameter interactions, particularly between hydraulic conductivity and vertical anisotropy in unconfined aquifers, whereas confined aquifers show a broader range of influential factors mainly due to interaction between location of the well-screen and the aquifer parameters. The methodology for determining PARR with an adaptive iteration algorithm based on the analytical solution to the well is more efficient and requires fewer iterations. The Lower Ain Valley reveals significant spatial variability in PARR (22–7.48 × 10⁵ m³/day) with aquifer characteristics, highlighting the basin’s strong aquifer storage potential for addressing severe groundwater deficiencies.

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允许含水层补给速率对水文地质和井设计参数的敏感性

在给定的作业时间、水文地质和井的特征以及允许水头的限制下，对含水层的最大注入速率被定义为允许含水层补给速率（PARR）。提出了局部和全局敏感性分析（Sobol指数），以解决在确定承压和非承压含水层的PARR时重要的水文地质和井参数。本文讨论了一种确定地下水三维数值模型PARR的新方法，并介绍了其在下艾因河谷的实施情况。PARR的敏感性随特定参数的相互作用而变化，特别是在非承压含水层中，水力导率和垂直各向异性之间的相互作用，而承压含水层的影响因素范围更广，主要是由于井网位置和含水层参数之间的相互作用。基于井解析解的自适应迭代算法确定PARR的方法效率更高，迭代次数更少。下艾因河谷的PARR （22-7.48 × 105 m3/天）具有显著的空间变异性，具有含水层特征，突出了该盆地在解决严重地下水缺乏方面具有强大的含水层储存潜力。

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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来源期刊

Journal of Hydrology 地学-地球科学综合

CiteScore

11.00

自引率

12.50%

发文量

1309

审稿时长

7.5 months

期刊介绍： The Journal of Hydrology publishes original research papers and comprehensive reviews in all the subfields of the hydrological sciences including water based management and policy issues that impact on economics and society. These comprise, but are not limited to the physical, chemical, biogeochemical, stochastic and systems aspects of surface and groundwater hydrology, hydrometeorology and hydrogeology. Relevant topics incorporating the insights and methodologies of disciplines such as climatology, water resource systems, hydraulics, agrohydrology, geomorphology, soil science, instrumentation and remote sensing, civil and environmental engineering are included. Social science perspectives on hydrological problems such as resource and ecological economics, environmental sociology, psychology and behavioural science, management and policy analysis are also invited. Multi-and interdisciplinary analyses of hydrological problems are within scope. The science published in the Journal of Hydrology is relevant to catchment scales rather than exclusively to a local scale or site.