scholarly journals COST REDUCTION THROUGH THE BUSINESS INTEGRATION OF REGIONAL WATER SUPPLY AUTHORITIES AND DEPARTMENTS A CASE STUDY ON ISHIKARI RIVER BASIN IN HOKKAIDO, JAPAN

2014 ◽  
Vol 70 (7) ◽  
pp. III_119-III_130
Author(s):  
Yoshinori MATSUBAYASHI ◽  
Masaru FUKUHARA ◽  
Yuzuru WATABE ◽  
Shigemi AMANO ◽  
Yoshihiko MATSUI
Keyword(s):  
Water Supply ◽  
River Basin ◽  
Cost Reduction ◽  
Regional Water

scholarly journals Multi-Water Source Joint Scheduling Model Using a Refined Water Supply Network: Case Study of Tianjin

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1580 ◽  
Author(s):  
Shanghong Zhang ◽  
Jiasheng Yang ◽  
Zhongyu Wan ◽  
Yujun Yi
Keyword(s):  
Resource Allocation ◽  
Water Supply ◽  
Water Resource ◽  
Water Distribution ◽  
Distribution Area ◽  
Source Water ◽  
Supply Source ◽  
Water Resource Allocation ◽  
Regional Water

Water shortage problems are increasing in many water-deficient areas. Most of the current research on multi-source combined water supplies depends on an overall generalization of regional water supply systems, which are seldom broken down into the detail required to address specific research objectives. This paper proposes the concept of a water treatment and distribution station (water station), and generalizes the water supply system into three modules: water supply source, water station, and water user. Based on a topological diagram of the water network (supply source–station–user), a refined water resource allocation model was established. The model results can display, in detail, the water supply source, water supply quantity, water distribution engineering, and other information of all users in each water distribution area. This makes it possible to carry out a detailed analysis of the supply and demand of users, and to provide suggestions and theoretical guidance for regional water distribution implementation. Tianjin’s water resource allocation was selected as a case study, and a water resource allocation scheme for a multi-source, combined water supply, was simulated and discussed.

scholarly journals Impact of downscaled rainfall biases on projected runoff changes

2020 ◽  
Vol 24 (6) ◽  
pp. 2981-2997
Author(s):  
Stephen P. Charles ◽  
Francis H. S. Chiew ◽  
Nicholas J. Potter ◽  
Hongxing Zheng ◽  
Guobin Fu ◽  
...  
Keyword(s):  
Water Supply ◽  
Grid Point ◽  
Daily Rainfall ◽  
Rainfall Runoff ◽  
Rainfall Frequency ◽  
Rainfall Runoff Model ◽  
Projected Changes ◽  
Runoff Model ◽  
Regional Water

Abstract. Realistic projections of changes to daily rainfall frequency and magnitude, at catchment scales, are required to assess the potential impacts of climate change on regional water supply. We show that quantile–quantile mapping (QQM) bias-corrected daily rainfall from dynamically downscaled WRF simulations of current climate produce biased hydrological simulations, in a case study for the state of Victoria, Australia (237 629 km2). While the QQM bias correction can remove bias in daily rainfall distributions at each 10 km × 10 km grid point across Victoria, the GR4J rainfall–runoff model underestimates runoff when driven with QQM bias-corrected daily rainfall. We compare simulated runoff differences using bias-corrected and empirically scaled rainfall for several key water supply catchments across Victoria and discuss the implications for confidence in the magnitude of projected changes for mid-century. Our results highlight the imperative for methods that can correct for temporal and spatial biases in dynamically downscaled daily rainfall if they are to be suitable for hydrological projection.

scholarly journals Sensitivity of Regional Water Supply Systems Models to the Level of Skeletonization – A Case Study from Apulia, Italy

2015 ◽  
Vol 119 ◽  
pp. 535-544
Author(s):  
Claudio Arena ◽  
Marcella Cannarozzo ◽  
Antonino Fortunato ◽  
Ignazio Scolaro ◽  
Mario Rosario Mazzola
Keyword(s):  
Water Supply ◽  
Water Supply Systems ◽  
Systems Models ◽  
Supply Systems ◽  
Regional Water

scholarly journals Hydro-Economic Water Allocation Model for Water Supply Risk Analysis: A Case Study of Namhan River Basin, South Korea

2021 ◽  
Vol 13 (11) ◽  
pp. 6005
Author(s):  
Gimoon Jeong ◽  
Doosun Kang
Keyword(s):  
Climate Change ◽  
South Korea ◽  
Water Supply ◽  
River Basin ◽  
Water Allocation ◽  
Economic Valuation ◽  
Supply Risk ◽  
Water Shortages ◽  
Water Supply Risk

Rational water resource management is used to ensure a stable supply of water by predicting the supply of and demand for future water resources. However, rational water allocation will become more difficult in the future owing to the effects of climate change, causing water shortages and disputes. In this study, an advanced hydro-economic water allocation and management model (WAMM) was introduced by improving the optimization scheme employed in conventional models and incorporating the economic value of water. By relying upon economic valuation, the WAMM can support water allocation efforts that focus not only on the stability but also on the economic benefits of water supply. The water supply risk was evaluated following the different objective functions and optimization methods provided by the WAMM using a case study of the Namhan River basin in South Korea under a climate change scenario over the next 30 years. The water shortages and associated economic damage were compared, and the superior ability of WAMM to mitigate future water shortages using economic valuation and full-step linear programming (FSLP) optimization was demonstrated. It is expected that the WAMM can be applied to help resolve water shortages and disputes among river basin units under severe drought conditions.

scholarly journals Reservoir Operation for Water Supply Considering Operational Ensemble Hydrological Predictions

2018 ◽  
Vol 13 (4) ◽  
pp. 650-659
Author(s):  
Daisuke Nohara ◽  
◽  
Tomoharu Hori
Keyword(s):  
Water Supply ◽  
Real Time ◽  
River Basin ◽  
Reservoir Operation ◽  
Medium Term ◽  
Ensemble Forecasts ◽  
Water Release ◽  
Real Time Optimization ◽  
Release Strategy

This paper presents approaches and case studies for the introduction of ensemble hydrological predictions to reservoir operation for water supply. Medium-term operational ensemble forecasts of precipitation are employed to improve the real-time reservoir operation for drought management considering longer prospects with respect to future hydrological conditions in the target river basin. Real-time optimization of the water release strategy is conducted using dynamic programming approaches considering ensemble hydrological predictions. A case study on the application of ensemble hydrological predictions to reservoir operation for water use is reported as an example, with a hypothetical target river basin whose hydrological characteristics are derived from an actual reservoir and river basin.

Sign in / Sign up

Export Citation Format

Share Document