Estimation of spatially distributed groundwater potential recharge for the United Kingdom

Estimation of spatially distributed groundwater potential recharge for the United Kingdom
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英国地下水补给空间分布的估计

DOI:
10.1144/qjegh2017-051
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发表时间:
2018
影响因子:
1.4
通讯作者:
Mansour M
Mansour M
中科院分区:
地球科学4区
文献类型:
--
作者:
Mansour M

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分布式补给的计算对于推动用于管理和保护地下水资源的地下水数值模型、评估人为压力和气候变化的影响以及研究开采地下储存的热量等技术的可行性是必要的。国家规模的模式使政策制定者和政府决策者能够在正确的地理背景下制定政策。然而,与建立大规模模型相关的许多挑战,例如,在粗网格分辨率上表示过程。这项研究提出了分布式潜在补给值,使用改进的环境署(EA)/联合国粮食及农业组织(Food And Agriculture Organization)补给算法进行计算。对模型进行了校正,并将模拟的潜在补给值和土壤水分亏损值与EA和气象局(Met Office)提供的估计值进行了比较。长期平均潜在补给值在英国东部非常小,但向西和北部显著增加,在威尔士和苏格兰的山丘上达到高达8 mm day−1的值。虽然这项研究强调了进一步改进模型的必要性,但提出的结果有助于评估全国范围内的潜在补给值,并有助于开展水资源研究,特别是在有无承压/近地表含水层的集水区。
The calculation of distributed recharge is necessary to drive numerical groundwater models used to manage and protect groundwater resources, to assess the impact of anthropogenic stresses and climate change, and to study the viability of technologies, such as exploiting the heat stored in the ground. A national-scale model allows policymakers and governmental decision-makers to set policy within the correct geographical context. However, many challenges are associated with building large-scale models, for example, the representation of processes on coarse grid resolution. This study presents distributed potential recharge values, calculated using the modified Environment Agency (EA)/Food and Agriculture Organization recharge algorithm. The model calibration is presented and the simulated potential recharge values and soil moisture deficit values are compared with estimates provided by the EA and the Meteorological Office (Met Office). Long-term average potential recharge values are very small in the east of the UK but they increase significantly towards the west and north, reaching values as high as 8 mm day−1over the hills of Wales and Scotland. While this study highlights the need for further model refinement, the presented results are useful for assessing the potential recharge values at a national scale and for undertaking water resource studies, especially in catchments with unconfined/near-surface aquifers.
一种简单的分布式地下水补给模型地表径流计算方法
DOI: --
发表时间: 2011
期刊:
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使用补给和衰减潜力图改进第四纪沉积物的表征,以进行地下水脆弱性评估
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发表时间: 2011
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作者:
K. Griffiths;A. M. MacDonald;N. Robins;J. Merritt;S. Booth;D. Johnson;P. McConvey
通讯作者: P. McConvey
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高地半干旱喀斯特系统分布式补给评估:中东西岸山地含水层
DOI: 10.1007/s10040-008-0273-6
发表时间: 2008
影响因子: 2.8
作者:
A. Hughes;M. Mansour;N. Robins
通讯作者: N. Robins