Assessment of Risks to Public Water Supply From Low Flows and Harmful Water Quality in a Changing Climate
Assessment of Risks to Public Water Supply From Low Flows and Harmful Water Quality in a Changing Climate
复制标题
气候变化下低流量和有害水质对公共供水的风险评估
DOI：
10.1029/2018wr022865
复制
发表时间：
2019
影响因子：
5.4
通讯作者：
P. Whitehead
中科院分区：
文献类型：
--
作者：
M. Mortazavi;G. Bussi;J. Elliott;Jim W Hall;P. Whitehead
供水公司的水资源规划和管理传统上是以考虑水的供应情况为基础的。然而，公共供水的可靠性也会受到水体质量的影响。在这项研究中，我们提出了一个框架，整合了水质不佳和水资源不足的风险分析。我们开发了一个耦合的模拟系统，结合河流水量和水质的水文模拟，从河流到水库的取水规则，并在水库有害藻华的动态模拟。我们使用这个框架来评估气候变化、需求增长和土地利用变化对公共供水可靠性的影响。所提出的方法进行了测试，在英格兰南部的泰晤士河流域。结果表明，除了英格兰南部水需求上升的风险和气候变化的不确定影响外，农业和上游废水处理厂的污水扩散污染可能对伦敦公共供水的可靠性构成威胁。我们量化了可以采取的措施来减轻这些威胁，尽管即使是积极的污染预防战略也不足以抵消气候变化对水质和公共供水可靠性的预期影响。所提出的方法可以帮助水务公司认识到他们的系统脆弱性，并评估潜在的解决方案，以实现更可靠的供水。
Water resources planning and management by water utilities have traditionally been based on consideration of water availability. However, the reliability of public water supplies can also be influenced by the quality of water bodies. In this study, we proposed a framework that integrates the analysis of risks of inadequate water quality and risks of insufficient water availability. We have developed a coupled modeling system that combines hydrological modeling of river water quantity and quality, rules for water withdrawals from rivers into storage reservoirs, and dynamical simulation of harmful algal blooms in storage reservoirs. We use this framework to assess the impact of climate change, demand growth, and land‐use change on the reliability of public water supplies. The proposed method is tested on the River Thames catchment in the south of England. The results show that alongside the well‐known risks of rising water demand in the south of England and uncertain impacts of climate change, diffuse pollution from agriculture and effluent from upstream waste water treatment works potentially represent a threat to the reliability of public water supplies in London. We quantify the steps that could be taken to ameliorate these threats, though even a vigorous pollution‐prevention strategy would not be sufficient to offset the projected effects of climate change on water quality and the reliability of public water supplies. The proposed method can help water utilities to recognize their system vulnerability and evaluate the potential solutions to achieve more reliable water supplies.
影响因子：
6.4
作者：
E. Matrosov;I. Huskova;J. Kasprzyk;J. Harou;C. Lambert;P. Reed
通讯作者：
E. Matrosov;I. Huskova;J. Kasprzyk;J. Harou;C. Lambert;P. Reed
影响因子：
4.3
作者：
F. Fung;G. Watts;Ana Lopez;H. Orr;M. New;C. Extence
通讯作者：
F. Fung;G. Watts;Ana Lopez;H. Orr;M. New;C. Extence
影响因子：
6.4
作者：
Bussi, Gianbattista;Dadson, Simon J.;Whitehead, Paul G.
通讯作者：
Whitehead, Paul G.