Impact of hydrologic uncertainties in reservoir routing

Reservoir routing methods are used in the design and operation of storage facilities at high flow conditions. Traditionally, deterministic approaches have been used for reservoir flood routing computations, which do not account for possible variations in governing parameters. However, hydrologic variables, such as inflow, stage, and outflow may naturally have various sources of uncertainties. Since important dimensions, such as dam height and spillway size, are normally dictated by reservoir routing performed under design flood conditions, use of precise statistical information on governing hydrologic variables is of utmost importance in view of safety and economy. In this study, variations in hydrologic parameters that are utilized in reservoir flood routing are discussed in a practical application with a flood detention dam. Furthermore, probability density functions and coefficients of variation of selected random parameters involved in routing computations are investigated. Within the scope of this study, statistical parameters of inflow, outflow, and reservoir water level are investigated through Monte Carlo analysis. Additionally, a sensitivity analysis is conducted to assess the effects of possible variations in associated uncertainties of hydrologic parameters.
International Conference on Water Observation and Information System for Decision Support BALWOIS ,(2008)


Determination of the Spatial Distribution in Hydraulic Conductivity Using Genetic AlgorithmOptimization
Aksoy, Ayşegül; Kıtanıdıs, Peter K (null; 2016-12-16)
Heterogeneity in hydraulic conductivity (K) impacts the transport and fate of contaminants in subsurface as well as design and operation of managed aquifer recharge (MAR) systems. Recently, improvements in computational resources and availability of big data through electrical resistivity tomography (ERT) and remote sensing have provided opportunities to better characterize the subsurface. Yet, there is need to improve prediction and evaluation methods in order to obtain information from field measurements ...
Effects of Soil Bridge Interaction and Abutment Deck Continuity on the Live Load Distribution Factors in Integral Bridge Components
Erhan, Semih; Dicleli, Murat (2009-10-01)
In this study, the effects of soil bridge interaction and abutment deck continuity on the live load distribution in integral bridge components are studied. For this purpose, 2-D and 3-D structural models of typical integral and conventional bridges having various structural, geometric and geotechnical properties are built. The analyses of the models are then conducted under AASHTO live load. The analyses results revealed that soil-bridge interaction has significant effects on the live load distribution in a...
Assessment of uncertainties in bed load rate and water surface profile computations
Genç, Gizem; Yanmaz, Ali Melih; Department of Civil Engineering (2023-1-12)
Many processes in water resources engineering are disposed to uncertainty due to the inherent variation of many inputs and parameters in time and place. This study mainly consists of two parts. In the first part, probabilistic variations of bed load rates are examined using Meyer-Peter Müller and Einstein-Brown approaches under the effect of different bed slopes, bed materials, and flow rates in the Miliç Basin. The results of the first part offer an insight into the probabilistic nature of bed resistance. ...
Influence of degree of saturation on the borehole sealing performance of an expansive cement grout
Akgün, Haluk (Elsevier BV, 2000-02-01)
The strength measures of expansive cement grout borehole plugs cast in welded tuff cylinders is investigated as a function of the degree of saturation of the plugged rock cylinder and of borehole size. Details on experimental procedure regarding rock cylinder and cement grout preparation, sample curing conditions, experimental apparatus, sample loading, mechanical characterization of the rock, and cement grout, along with procedures for the determination of the sample saturation assuming uniform saturation,...
OZBELGE, TA; SOMER, TG (Elsevier BV, 1994-08-01)
Heat transfer from a solid surface to a fluid-solid suspension in vertical or horizontal transport is of importance in the design of heat-exchangers, driers, fluidized beds, and slurry pipeline reactors. There are fewer studies on heat transfer in liquid-solid flows than on gas-solid flows. In this paper, a correlation for heat transfer to dilute liquid-solid flows in a horizontal pipe is presented. Suspension properties were used to derive the following equation: Nu(s) = 0.202Res0.6Prs0.675(D/d(p))0.092(mu...
Citation Formats
E. Kentel Erdoğan and A. M. Yanmaz, “Impact of hydrologic uncertainties in reservoir routing,” presented at the International Conference on Water Observation and Information System for Decision Support BALWOIS ,(2008), Ohrid, Republic of Macedonia, 2008, Accessed: 00, 2021. [Online]. Available: