Journal of Hydrologic Engineering: Recent submissions
Now showing items 821-840 of 3312
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Analytical Solution of Kinematic Wave Time of Concentration for Overland Flow under Green-Ampt Infiltration
(American Society of Civil Engineers, 2016)In this paper the well-known kinematic wave equation for computing the time of concentration for impervious surfaces has been extended to the case of pervious hillslopes, accounting for infiltration. An analytical solution ... -
Examining Water Use Regimes of Suburban Watersheds at Annual and Subannual Timescales
(American Society of Civil Engineers, 2016)Human water use can place considerable stress on hydrologic systems. Humans directly affect the water cycle through water withdrawals and return flows. Aside from climate change, humans indirectly impact hydrologic systems ... -
Propagation of Nonlinear Flood Waves in Rivers
(American Society of Civil Engineers, 2016)The propagation of flood waves in rivers is governed by the Saint Venant equations. Under certain simplifying assumptions, these nonlinear equations have been solved numerically via computationally intensive, specialized ... -
Evaluation of the Index-Flood Approach Related Regional Frequency Analysis Procedures
(American Society of Civil Engineers, 2016)Index-flood related regional frequency analysis (RFA) procedures are in use by hydrologists to estimate design quantiles of hydrological extreme events at data sparse/ungauged locations in river basins. There is a dearth ... -
Comparison of Annual Maximum and Partial Duration Series for Derivation of Rainfall Intensity-Duration-Frequency Relationships in Peninsular Malaysia
(American Society of Civil Engineers, 2016)The use of partial duration series (PDS) with generalized Pareto (GPA) distribution in hydrological frequency analysis has been popular during the last few decades because PDS is capable of including more extreme events ... -
Performance Comparison of SAS-Multilayer Perceptron and Wavelet-Multilayer Perceptron Models in Terms of Daily Streamflow Prediction
(American Society of Civil Engineers, 2016)Accurate streamflow prediction is required in sustainable water resources management. Direct use of observed data in developing prediction models has resulted in inaccuracies. Discrete wavelet transform (DWT) is widely ... -
Ensemble Combination of Seasonal Streamflow Forecasts
(American Society of Civil Engineers, 2016)Various hydrologic models with different complexities have been developed to represent the characteristics of river basins, improve streamflow forecasts such as seasonal volumetric flow predictions, and meet other demands ... -
Modeling Snow Line Altitudes in the Himalayan Watershed
(American Society of Civil Engineers, 2016)Snow line altitude (SLA) defines the boundary of snow-free and snow-covered area. The efficiency of snow/ice-melt-runoff model and snowy/Himalayan watershed model depends on the estimation accuracy of the mean SLA for ... -
MODIS-Based Potential Evapotranspiration Demand Curves for the Sacramento Soil Moisture Accounting Model
(American Society of Civil Engineers, 2016)A satellite-based potential evapotranspiration (PET) product for streamflow simulations is tested for 15 forecast basins in the Upper Mississippi and Red River watersheds under the forecasting responsibility of the National ... -
Evaluation of the Concept of Critical Rainfall Duration by Bivariate Frequency Analysis of Annual Maximum Independent Rainfall Event Series in Seoul, Korea
(American Society of Civil Engineers, 2016)This study investigated the possible problems of using the concept of critical rainfall duration (CRD) for estimating the design flood. The investigation focused on the evaluation of the difference between the annual maximum ... -
Climate Change Assessment of Water Resources in Sabah and Sarawak, Malaysia, Based on Dynamically-Downscaled GCM Projections Using a Regional Hydroclimate Model
(American Society of Civil Engineers, 2016)Climate change’s impact on the Sabah and Sarawak water resources in the Northern sector of the Borneo Island, Malaysia, was assessed based on the dynamically-downscaled general circulation model projections (GCMPs) by means ... -
Improved Methods of Parameterization for Estimating the Magnitude and Frequency of Peak Discharges in Rural Ungaged Streams
(American Society of Civil Engineers, 2016)For the past several decades, the United States Geological Survey (USGS) and others have been tasked with development of regional predictor equations to determine flood peaks in unregulated and ungaged rural locations. ... -
Application of Dupuit’s Equation in SWMM to Simulate Baseflow
(American Society of Civil Engineers, 2016)This article demonstrates a procedure for simulation of baseflow in the EPA Storm Water Management Model (SWMM) using the SWMM groundwater flow editor. The procedure is based on simulation of baseflow by usage of the ... -
Correlating MJO Activity with Argentina Rainfall and Atlantic Hurricanes Using ICI-RAFT
(American Society of Civil Engineers, 2017)Knowledge of how the frequency and intensity of extreme events are affected by climate variability will contribute to answering questions related to drought and water availability that are important in water resources ... -
Salinity Influences on Aboveground and Belowground Net Primary Productivity in Tidal Wetlands
(American Society of Civil Engineers, 2017)Tidal freshwater wetlands are one of the most vulnerable ecosystems to climate change and rising sea levels. However salinification within these systems is poorly understood, therefore, productivity (litterfall, woody ... -
Multicriteria Evaluation Approach for Assessing Parametric Uncertainty during Extreme Peak and Low Flow Conditions over Snow Glaciated and Inland Catchments
(American Society of Civil Engineers, 2016)This paper examines model uncertainties associated with streamflow by characterizing it into extreme high (peak) flows and low flows in two different catchments, viz. a snowmelt-induced hilly catchment (Satluj) and an ... -
Comparison of the 2011 Mississippi River Flood to the MR-T Project Design Flood
(American Society of Civil Engineers, 2017)During the period of April 19 to May 4, 2011, an unusually large amount of precipitation fell across the middle to lower portion of the Mississippi River basin and resulted in record flooding in many locations. The greatest ... -
Operational Hydrometeorological Forecast System for Espírito Santo State, Brazil
(American Society of Civil Engineers, 2017)An Operational Hydrometeorological Forecast System for Espírito Santo State (HESS), Brazil, is described with special emphasis on civil protection, agriculture and harbor applications, which are heavily dependent on present ... -
Fine Spatial Resolution Simulation of Two-Dimensional Modeling of Flow Pulses Discharge into Wetlands: Case Study of Loxahatchee Impoundment Landscape Assessment, the Everglades
(American Society of Civil Engineers, 2017)Wetland ecosystems are controlled by their hydrology. Recent experimental and numerical investigations have suggested that flow pulses are needed to preserve sediment redistribution in some wetlands. In this study, the ... -
Capturing Spatial Variability of Biogeochemical Mass Exchanges and Reaction Rates in Wetland Water and Soil through Model Compartmentalization
(American Society of Civil Engineers, 2017)A common phenomenon observed in natural and constructed wetlands is short-circuiting of flow and formation of stagnant zones that are only indirectly connected with the incoming water. Biogeochemistry of passive areas is ...