Pywr-WREW, a Water Resources model for England and Wales built in Python water resources simulation system

Pywr-WREW，用Python构建的英格兰和威尔士水资源模拟系统水资源模型

• 批准号: ST/Y003802/1
• 负责人: Anna Murgatroyd
• 金额: $ 6.51万
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=ST%2FY003802%2F1
• 关键词: Pywr; WREW; Water; Resources; model

There is increasing concern about the resilience of England's water supplies, because of the effects of population growth, climate change and the need to ensure enough water for natural ecosystems. Due to these pressures, the 2014 Water Act introduced a duty "to secure the long-term resilience of water supply systems". In 2020, the Environment Agency's "Meeting our Future Water Needs: A National Framework for Water Resources" presented new evidence of the increasing pressures on water supplies, and made the case for a new framework for management of water resources, taking a large-scale systems perspective. This reflected a major step for the water industry in England, which since privatization has focussed at the level of individual water companies. However, given the challenges facing future water resources it is no longer tenable to just manage water resources at a company scale. Responding to these challenges will require large-scale infrastructure and policy interventions. With this in mind, the University of Oxford, the Environment Agency and Ofwat initiated the National System Simulation Modelling (NSSM) project to examine, at a national scale, the resilience and benefits of potential water supply solutions and other policy decisions under different futures of climate change and demand. In the NSSM project, we developed the first national scale Water Resource model for England and Wales (WREW). This new water resource system simulation model integrates public water supplies with use of water in agriculture, power generation and other industries. Our water resource model has been used to explore different future scenarios of drought and assess the frequency, duration and severity of water shortages now and in the future. We have also explored trade-offs between different aspects of risk and the cost of alternative water supply solutions presently being considered by water companies in England and Wales. Our evidence on the increasing pressures on water supplies has helped to make the case for a new national framework for management of water resources, taking a large-scale systems perspective rather than a company-scale approach. The WREW model is an invaluable tool for evaluating national-scale infrastructure and policy interventions, and is currently being used by the EA and Ofwat to assess strategic water resource infrastructure in England and Wales. However, WREW uses commercially licensed software and so cannot be easily and openly shared within the EA, or beyond to stakeholders in the water industry or academia. We propose to use funding from Stream One of the Centre of Excellence for Resilient Infrastructure Analysis on DAFNI to re-build the national Water Resources model for England and Wales using the open-source generic dynamic python library Pywr. This will enable the model to be widely used by researchers and practitioners. The new model will be termed Pywr-WREW.Development of Pywr-WREW will build on recent and ongoing research by the University of Oxford as part of the NSSM project. Hosting the Pywr-WREW simulation model on the DAFNI Platform would allow us to collaborate with our partners (e.g., the EA and water industry stakeholders) much more easily to conduct model runs and explore results together. In addition, DAFNI's state of the art computational infrastructure would improve the efficiency of our model and analysis considerably.

由于人口增长，气候变化以及确保自然生态系统足够的水的需要，人们对英格兰水供应的弹性越来越担心。由于这些压力，《 2014年水法》提出了“确保供水系统的长期弹性”的职责。 2020年，环境局的“满足我们未来的水需求：国家水资源框架”提供了新的证据，证明了供水压力增加的新证据，并为管理水资源的新框架提供了案例，以大规模的系统观点。这反映了英格兰自来水行业的重要一步，因为私有化将重点放在单个水公司的水平上。但是，鉴于未来水资源面临的挑战不再是以公司规模管理水资源的挑战。应对这些挑战将需要大规模的基础设施和政策干预措施。考虑到这一点，牛津大学，环境局和OFWAT启动了国家系统模拟建模（NSSM）项目，以国家规模检查潜在的供水解决方案的韧性和利益，以及在气候变化和需求的不同未来下的其他政策决策。在NSSM项目中，我们开发了第一个针对英格兰和威尔士（Wrew）的国家规模水资源模型。这种新的水资源系统模拟模型将公共供水与在农业，发电和其他行业中使用水的使用。我们的水资源模型已被用来探索干旱的不同未来情况，并评估现在和将来水短缺的频率，持续时间和严重性。我们还探讨了风险不同方面与目前由英格兰和威尔士的水公司考虑的替代供水解决方案之间的权衡。我们关于水供应压力越来越大的证据有助于为新的国家水资源管理框架，采取大规模的系统观点而不是公司规模的方法。 wrew模型是评估国家规模的基础设施和政策干预措施的宝贵工具，目前，EA和OFWAT正在使用EA和OFWAT来评估英格兰和威尔士的战略水资源基础设施。但是，Wrew使用了商业许可的软件，因此在EA内或与水行业或学术界的利益相关者之间不容易和公开共享。我们建议使用DAFNI的卓越中心之一的资金进行弹性基础设施分析，以使用开源的通用动力Python图书馆PYWR来重建英格兰和威尔士国家水资源模型。这将使该模型能够被研究人员和从业人员广泛使用。新模型将被称为PYWR-wrew.PYWR播放的开发，将建立在牛津大学的最新研究和正在进行的研究基础上，这是NSSM项目的一部分。在DAFNI平台上托管PYWR-DREW模拟模型将使我们能够更轻松地与合作伙伴（例如EA和Water行业利益相关者）合作，以共同进行模型运行并探索结果。此外，DAFNI的最先进的计算基础架构将大大提高我们的模型效率和分析。