scholarly journals An Interval-Parameter Fuzzy Linear Programming with Stochastic Vertices Model for Water Resources Management under Uncertainty

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Yan Han ◽  
Yuefei Huang ◽  
Shaofeng Jia ◽  
Jiahong Liu
Keyword(s):  
Linear Programming ◽  
Water Resources ◽  
Water Supply ◽  
Water Resources Management ◽  
Fuzzy Linear Programming ◽  
Interval Parameter ◽  
Beijing City ◽  
Resources Management ◽  
Dual Uncertainty ◽  
Coupling Interval

An interval-parameter fuzzy linear programming with stochastic vertices (IFLPSV) method is developed for water resources management under uncertainty by coupling interval-parameter fuzzy linear programming (IFLP) with stochastic programming (SP). As an extension of existing interval parameter fuzzy linear programming, the developed IFLPSV approach has advantages in dealing with dual uncertainty optimization problems, which uncertainty presents as interval parameter with stochastic vertices in both of the objective functions and constraints. The developed IFLPSV method improves upon the IFLP method by allowing dual uncertainty parameters to be incorporated into the optimization processes. A hybrid intelligent algorithm based on genetic algorithm and artificial neural network is used to solve the developed model. The developed method is then applied to water resources allocation in Beijing city of China in 2020, where water resources shortage is a challenging issue. The results indicate that reasonable solutions have been obtained, which are helpful and useful for decision makers. Although the amount of water supply from Guanting and Miyun reservoirs is declining with rainfall reduction, water supply from the South-to-North Water Transfer project will have important impact on water supply structure of Beijing city, particularly in dry year and extraordinary dry year.

Integrated water resources management in the Ruhr River Basin, Germany

2003 ◽  
Vol 47 (7-8) ◽  
pp. 81-86 ◽  
Author(s):  
H. Bode ◽  
P. Evers ◽  
D.R. Albrecht
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
River Basin ◽  
Water Resources Management ◽  
Ecological Status ◽  
Integrated Water Resources Management ◽  
Rhine River ◽  
Wastewater Disposal ◽  
Resources Management ◽  
The People

The Ruhr, with an average flow of 80.5 m3/s at its mouth, is a comparatively small tributary to the Rhine River that has to perform an important task: to secure the water supply of more than 5 million people and of the industry in the densely populated region north of the river. The complex water management system and network applied by the Ruhrverband in the natural Ruhr River Basin has been developed step by step, over decades since 1913. And from the beginning, its major goal has been to achieve optimal conditions for the people living in the region. For this purpose, a functional water supply and wastewater disposal infrastructure has been built up. The development of these structures required and still requires multi-dimensional planning and performance. Since the river serves as receiving water and at the same time as a source of drinking water, the above-standard efforts of Ruhrverband for cleaner water also help to conserve nature and wildlife. Ruhrverband has summed up its environmental awareness in the slogan: “For the people and for the environment”. This basic water philosophy, successfully applied to the Ruhr for more than 80 years, will be continued in accordance with the new European Water Framework Directive, enacted in 2000, which demands integrated water resources management in natural river basins, by including the good ecological status of surface waterbodies as an additional goal.

scholarly journals Removable Weighing Lysimeter for Use in Horticultural Crops

2020 ◽  
Vol 10 (14) ◽  
pp. 4865
Author(s):  
Juan Antonio Nicolás-Cuevas ◽  
Dolores Parras-Burgos ◽  
Manuel Soler-Méndez ◽  
Antonio Ruiz-Canales ◽  
José Miguel Molina-Martínez
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Water Resources Management ◽  
Structural Design ◽  
Construction Process ◽  
Crop Water ◽  
Water Requirements ◽  
Resources Management ◽  
Horticultural Crops ◽  
Weighing Lysimeter

Water resources management is a priority issue in agriculture, especially in areas with water supply problems. Recently, one of the most widespread technologies for measuring crop water requirements are weighing lysimeters. Nevertheless, this type of lysimeters are of large dimensions and require a civil work for their installation. In this article, we present a weighing lysimeter prototype (1000 × 600 mm and 350 mm depth) designed to be used in agricultural farming of horticultural crops. We described the design details that includes ease of assembly, carriage and minimum soil alteration. Structural design results and construction process are also provided showing their performance under different tractors scenarios. The measurements accuracy results show the outcomes of the prototype after being tested. Finally, we discuss our design and measurements results by comparing them with other weighing lysimeters. In comparison, the prototype designed is an accurate and reliable device which reduces the surface and depth of the current weighing lysimeters.

scholarly journals Optimization of Water-Supply and Hydropower Reservoir Operation Using the Charged System Search Algorithm

Hydrology ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 5 ◽  
Author(s):  
Behzad Asadieh ◽  
Abbas Afshar
Keyword(s):  
Water Resources ◽  
Water Supply ◽  
Water Resources Management ◽  
Reservoir Operation ◽  
Big Bang ◽  
Alternative Methods ◽  
Resources Management ◽  
Charged System Search ◽  
Non Linear ◽  
Charged System

The Charged System Search (CSS) metaheuristic algorithm is introduced to the field of water resources management and applied to derive water-supply and hydro-power operating policies for a large-scale real-world reservoir system. The optimum algorithm parameters for each reservoir operation problems are also obtained via a tuning procedure. The CSS algorithm is a metaheuristic optimization method inspired by the governing laws of electrostatics in physics and motion from the Newtonian mechanics. In this study, the CSS algorithm’s performance has been tested with benchmark problems, consisting of highly non-linear constrained and/or unconstrained real-valued mathematical models, such as the Ackley’s function and Fletcher–Powell function. The CSS algorithm is then used to optimally solve the water-supply and hydropower operation of “Dez” reservoir in southern Iran over three different operation periods of 60, 240, and 480 months, and the results are presented and compared with those obtained by other available optimization approaches including Genetic Algorithm (GA), Ant Colony Optimization (ACO), Particle Swarm Optimization (PSO) and Constrained Big Bang–Big Crunch (CBB–BC) algorithm, as well as those obtained by gradient-based Non-Linear Programming (NLP) approach. The results demonstrate the robustness and superiority of the CSS algorithm in solving long term reservoir operation problems, compared to alternative methods. The CSS algorithm is used for the first time in the field of water resources management, and proves to be a robust, accurate, and fast convergent method in handling complex problems in this filed. The application of this approach in other water management problems such as multi-reservoir operation and conjunctive surface/ground water resources management remains to be studied.

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