Journal ArticleDOI
Applying Optimisation and Uncertainty Analysis to Help Develop an Integrated Water Resources Plan for South East England
Reads0
Chats0
TLDR
In this paper, a regional modelling framework has helped to identify integrated sets of schemes that can provide a cost-effective regional solution for securing the supply-demand balance at an acceptable level of security of supply.Abstract:
The need to promote opportunities for integration between commercially independent water supply providers is becoming important as pressure on water resources increases in many parts of the world. Water stress in south eastern England is projected to increase over the next 25 years, influenced by factors such as: population growth; demographic change; changes in water use; water requirements for environmental protection; and, the potential effects of climate variability and change. Actions to avoid unacceptable deficits in the supply–demand balance are being planned, involving measures to reduce the demand for water and schemes to increase the sharing of water resources within the region. This paper outlines the application of a modelling framework incorporating optimisation modelling and stochastic simulation to help identify options to improve the integration of water resources systems across the region. The regional modelling framework has helped to identify integrated sets of schemes that can provide a cost-effective regional solution for securing the supply–demand balance at an acceptable level of security of supply. These integrated sets of schemes include shared water storage and transfer options that are broader in scope than those considered by individual water companies in drawing up their own water resources plans. Outcomes to-date have included: (a) the identification of cost-effective opportunities for shared resource development and new infrastructure to transfer water from areas of surplus to areas of deficit; (b) interest from the six commercially independent water companies across the region in looking beyond their own water resource zones to develop a better integrated and more sustainable water supply and distribution network across South East England; and (c) valuable insight which is being applied in further regional modelling work to inform the development of the next round of water resources plans due to be submitted by water companies in 2014.read more
Citations
More filters
Journal ArticleDOI
Adaptive, multiobjective optimal sequencing approach for urban water supply augmentation under deep uncertainty
TL;DR: In this paper, an adaptive multi-objective optimal sequencing approach for urban water supply augmentation under deep uncertainty is introduced, where optimal long-term sequence plans are updated at regular intervals and trade-offs between the robustness and flexibility of the solutions that have to be fixed at the current time and objectives over the entire planning horizon are considered when selecting the most appropriate course of action.
Journal ArticleDOI
Selecting Portfolios of Water Supply and Demand Management Strategies Under Uncertainty—Contrasting Economic Optimisation and ‘Robust Decision Making’ Approaches
TL;DR: In this article, the authors compared two frameworks to the UK's Thames water resource system and compared their methods and outputs: how they consider uncertainty, how they represent supply and demand management options, and what plans each recommends.
Journal ArticleDOI
Expanded Decision-Scaling Framework to Select Robust Long-Term Water-System Plans under Hydroclimatic Uncertainties
TL;DR: A decision-scaling based framework to determine whether one or more preselected planning alternatives for a multiobjective water-resources system are robust to a variety of nonstationary hydroclimatic conditions and modeling uncertainties is presented.
Journal ArticleDOI
Least Economic Cost Regional Water Supply Planning – Optimising Infrastructure Investments and Demand Management for South East England’s 17.6 Million People
Silvia Padula,Julien J. Harou,Lazaros G. Papageorgiou,Yiming Ji,Mohammad Ahmad,Nigel Hepworth +5 more
TL;DR: In this paper, a deterministic capacity expansion optimisation model for large regional or national water supply systems is presented, which selects, sizes and schedules new options to meet predicted demands at minimum cost over a multi-year time horizon.
Journal ArticleDOI
Identifying trade-offs and reconciling competing demands for water - integrating agriculture into a robust decision-making framework
TL;DR: In this paper, the authors presented a grant for Anglian Water Services (AWS) with the support of the Natural Environment Research Council (NERC) and MaRIUS.
References
More filters
Book
UK Climate Projections Science Report: Climate Change projections
James M. Murphy,David M. H. Sexton,Geoff Jenkins,Ben B. B. Booth,C.C. Brown,Robin T. Clark,Matthew Collins,Glen R. Harris,Elizabeth J. Kendon,Richard Betts,S. J. Brown,K.A. Humphrey,Mark McCarthy,Ruth E. McDonald,Ag Stephens,Craig Wallace,Rachel Warren,Robert L. Wilby,Richard Wood +18 more
Handbook for the Assessment of Catchment Water Demand and Use
TL;DR: The Water Management Handbook for sub-Saharan Africa as mentioned in this paper provides practical guidance for assessing and forecasting water demands and use for the following sectors:======¯¯¯¯• Environment;============• Agriculture;======• Rural domestic;======)|• Urban;======¯¯¯¯¯¯• Industry.
Journal ArticleDOI
Evaluating the Utility of IPCC AR4 GCMs for Hydrological Application in South Korea
Thanh Le,Deg-Hyo Bae +1 more
TL;DR: In this article, the utility of 14 climate models for seven basins with area range of 2,656-26,355 km2 on the South Korean Peninsula was evaluated and compared.
Journal ArticleDOI
Alleviating the flood risk of critical water supply sites: asset and system resilience
C. Henriques,G. Spraggs +1 more
TL;DR: In this paper, the authors explored the planning process for adaptation strategies, emphasizing current research and modelling constraints and comparing resilience strategies, where low-regret options designed to protect a site from flooding were chosen and, where the population at risk is high, those were complemented with long term strategies for increased robustness of supply network to a multiplicity of risks.