Journal of Hydrologic Engineering: Recent submissions
Now showing items 661-680 of 3312
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Design Water Amount for Reservoir Management and Operation
(American Society of Civil Engineers, 2018)Reservoirs for flood protection are normally designed by using the annual maximum design flood (AMDF). However, management and operation of a reservoir require regulation of intrayear runoff instead of interyear runoff. ... -
Optimal Capacity of a Stormwater Reservoir for Flood Peak Reduction
(American Society of Civil Engineers, 2018)Stormwater reservoirs are used to control the runoff volume and to attenuate the peak flow rate from urban catchments. The required capacity of a stormwater reservoir and its dimensions are calculated with the help of ... -
Ensemble Modeling of the Theis Equation under Uncertain Parameter Conditions
(American Society of Civil Engineers, 2018)The Fokker-Planck equation (FPE) methodology was applied to the transient state confined groundwater flow equation under the initial and boundary conditions leading to the Theis problem. The differential Theis equation was ... -
Hydrologic Performance of Four Permeable Pavement Systems Constructed over Low-Permeability Soils in Northeast Ohio
(American Society of Civil Engineers, 2018)Permeable pavements benefit urban hydrology through detention of stormwater in the aggregate base and subsequent exfiltration to the underlying soil. The majority of previous research has focused on permeable pavements ... -
Groundwater Responses to Tidal Oscillations in a Coastal Plain Overlying a Sloping Semiconfined Aquifer System
(American Society of Civil Engineers, 2018)In a coastal aquifer, the interaction of tides and groundwater has a crucial impact on marine ecosystems. The model in this study consists of a semiconfined coastal aquifer overlying a sloping impermeable base in the ... -
Storage Effect in Falling Head Permeameters
(American Society of Civil Engineers, 2018)Hydraulic conductivity (K), a proportionality constant in Darcy’s Law, is one of the most fundamental parameters in groundwater studies. A falling head permeameter (FHP) test is one way to determine K, and its results are ... -
Forecasting Daily Runoff by Extreme Learning Machine Based on Quantum-Behaved Particle Swarm Optimization
(American Society of Civil Engineers, 2018)Accurate hydrologic time-series prediction plays an important role in modern water resource planning, water supply management, environmental protection, and power system operation. In general, single-layer feedforward ... -
Simulation-Optimization Approach for the Consideration of Well Clogging during Cost Estimation of In Situ Bioremediation System
(American Society of Civil Engineers, 2018)In situ bioremediation of groundwater has become one of the most widely used technologies for contaminated site treatment because of its relatively low cost, adaptability to site-specific conditions, and efficacy when ... -
Numerical Modeling of Non-Darcy Flow Behavior of Groundwater Outburst through Fault Using the Forchheimer Equation
(American Society of Civil Engineers, 2018)In a groundwater outburst through a fault, the velocity is generally so high that the relationship between the velocity and the hydraulic gradient deviates from the linear Darcy regime. This study uses the Forchheimer ... -
Pore Structure and Unsaturated Hydraulic Conductivity of Engineered Media for Living Roofs and Bioretention Based on Water Retention Data
(American Society of Civil Engineers, 2018)Characterizing pore structure and hydraulic properties of engineered media used in stormwater control measures (e.g., green roofs and bioretention) is critical for accurately predicting water and contaminant flow ... -
Solute Transport due to Spatio-Temporally Dependent Dispersion Coefficient and Velocity: Analytical Solutions
(American Society of Civil Engineers, 2018)This paper presents an analytical solution of the advection-dispersion equation (ADE) with the dispersion coefficient and velocity being directly proportional to the spatial linear nonhomogeneous function. It is one of the ... -
Three-Dimensional Numerical Modeling of Submerged Zone of Qanat Hydraulics in Unsteady Conditions
(American Society of Civil Engineers, 2018)Qanats have been considered as one of the significant and economical methods for groundwater abstraction, thus studying the flow into and along them through numerical modeling is of vital importance. In this study, based ... -
Communicating the Impacts of Projected Climate Change on Heavy Rainfall Using a Weighted Ensemble Approach
(American Society of Civil Engineers, 2018)Urban flood risks are often determined by the frequency analysis of observed rainfall data, communicated using isohyetal maps showing rainfall totals for a range of durations and recurrence intervals. However, to assess ... -
Design of Vegetative Filter Strip Using Web-Based System with Groundwater Table and Pesticide Degradation Analysis Modules
(American Society of Civil Engineers, 2018)Vegetative filter strips (VFS) are an effective approach to reducing edge-of-field discharge of sediment and pesticide. The web-based Vegetative Filter Strip MODel (VFSMOD) system, developed to assess the trapping efficiency ... -
Dynamic Equilibrium Modeling of Snow and Inland Glaciers under the Evolving Climate in Wyoming
(American Society of Civil Engineers, 2018)Most snow hydrology models do not include the long-term effects of interannual snow storage such as glaciers because glacier dynamics have a longer timescale than river flow and seasonal snowmelt. Interannual snow and ice, ... -
Flow Field around Semielliptical Abutments
(American Society of Civil Engineers, 2018)Hydraulic structures in rivers employ abutments of different shapes. An abutment causes a scour hole around the bottom of the structure in the river. The scour hole grows no further when the turbulence fluctuations and bed ... -
Comparison of HSPF and PRMS Model Simulated Flows Using Different Temporal and Spatial Scales in the Black Hills, South Dakota
(American Society of Civil Engineers, 2018)The hydrological simulation program Fortran (HSPF) [Hydrological Simulation Program Fortran version 12.2 (Computer software). USEPA, Washington, DC] and the precipitation runoff modeling system (PRMS) [Precipitation Runoff ... -
Bias Correction Methods for Hydrologic Impact Studies over India’s Western Ghat Basins
(American Society of Civil Engineers, 2018)The regional climate models (RCMs) used in the analysis of the impact of climate variables on the hydrology of river basins needs appropriate preprocessing (bias correction) to represent and reproduce future climate with ... -
Closure to “Analytical Approach for Derivation of Oscillation-Free Altered Duration Unit Hydrographs” by P. R. Patil and S. K. Mishra
(American Society of Civil Engineers, 2018) -
Probabilistic Stormwater Runoff and Water Quality Modeling of a Highway in Suburban Maryland
(American Society of Civil Engineers, 2018)The U.S. EPA Storm Water Management Model (SWMM) was used to simulate upland runoff production and the subsequent performance of a downstream, ponded infiltration basin installed adjacent to a highway in suburban Maryland. ...