The MARORA model is used to evaluate the economics of investment in on-farm reservoirs in Arkansas under alternative land tenure arrangements. A declining groundwater supply coupled with a high percentage of rice-production area owned by absentee landowners makes investment decision-making on on-farm reservoirs an important issue for the sustainability of rice in Arkansas. The MARORA model is s...

The Modified Arkansas Off-Stream Reservoir Analysis (MARORA) model estimates the economics of on-farm reservoirs and other water conservation improvements in alternative ground water situations. With restricted ground water supply, a combination of different water conservation methods is estimated to provide the greatest economic return. On-farm reservoirs are not economical if ground water is ...

We investigated recreational vehicle (RV) water reservoirs in response to a case of pneumonia in which Legionella pneumophila was cultured both from the patient and a RV reservoir in which he travelled. Water samples processed and cultured at the CDC according to standard protocol were positive for Legionella spp. in 4/17 (24%) faucets, 1/11 (9%) water tanks from 4/20 (20%) RVs from three diffe...

Rubber dams are inflatable and deflatable hydraulic structures. Thousands of rubber dams have been installed worldwide for various purposes: irrigation, water supply, power generation, tidal barrier, flood control, environmental improvement, and recreation. Furthermore, rubber dams have been used in cold areas where the temperature is as low as –40°C. The simplicity and flexibility of the rubbe...

Overtopping dam break is a frequent accident in tailings reservoirs. However, little attention has been paid to the study of overtopping hydraulic erosion damage characteristics after adding reinforcement. Nowadays, there were few people have researched prediction failure process reinforced dam. It important significance establish model for which aims at problem tailings. For anti-erosion and a...

Paul C. Rizzo Associates, Inc. (RIZZO) has developed efficient computational tools to evaluate the liquefaction potential of earth embankment dams located within high risk seismic regions. Two relevant case histories are the Saluda Dam and the Santee Cooper East Dam Extension, both structures susceptible to liquefaction, and located in South Carolina. Saluda Dam presents liquefaction risks with...

This study shows that cloud seeding should be planned by considering the dam reservoir characteristics as well basin characteristics. First, collection efficiency of increased rainfall is compared for three basins (Boryeong Dam, Yongdam and Namgang Dam basins) located in western part Korean Peninsula. Second, additional runoff volumes those from are with each other. Finally, change water supply...

Especially for drought periods, the higher the accuracy of reservoir inflow forecasting, the 9 more reliable the water supply from a dam. The article focuses on probabilistic forecasting of 10 seasonal inflow to reservoirs and determines estimates from the probabilistic seasonal inflow 11 according to drought forecast results. The probabilistic seasonal inflow was forecasted by a copula12 based...

In engineering and scientific disciplines, there are extensive Optimization Application Problems (OAPs) such as economic dispatch, structural design, water resources. One of the major OAPs is operation dams reservoirs to minimize gap between supply for irrigation demand patterns hydropower generation. Drawing optimal often categorized discontinuity, multimodality, non-differentiability non-conv...