# Predicting Overland Flow Response: Effects of Spatially-Varying Soil Properties

*A physically-based model of Horton overland flow is applied to experimental data from a simulated rainfall event in eastern Washington. The model employs the Green-Ampt infiltration equation...*

Flume Experiments on Debris Flow

*With the different characteristics of grain motion in debris flow, three layers are vertically divided, i.e., viscous collision layer, inertial collision layer and suspension layer. Both...*

Large Floods and Climate Change in the Southwestern United States

*Floods can have a tremendous impact on water resources but their properties may fluctuate at frequencies that defy recognition in short-term instrumented records. Paleoflood deposits provide...*

Waves in a Fluid Mud Layer Flowing Down an Incline

*To model the dynamics of fluid mud, lava, or debris with a high concentration of cohesive clay particles, we consider a thin sheet of Bingham plastic fluid flowing down a slope. The Bingham...*

Some Aspects of the Mechanism of Debris Flow

*As the first step of the development of a general two-phase flow model for debris flows, a simple granular model, which is considered as a special case of the two-phase flow model, is...*

Simulating Spatially Varied Thunderstorm Rainfall

*Using data from two independent, relatively dense networks of raingages located in the vicinity of Tucson, Arizona, the spatial distribution of thunderstorm rainfall was determined as...*

Design Cloudburst and Flash Flood Methodology for the Western Mojave Desert, California

*A methodology was required for estimating flow in ungaged drainages. An analysis of floods in the western Mojave Desert showed that the largest events on basins below 1,500 meters MSL...*

Western Surface Climate and Streamflow and the El Nino/Southern Oscillation

*Climate variability has direct social and economic impacts the most direct of which occur through the hydrologic cylce. Of primary concern to society are the hydrologic extremes of floods...*

Graphics Advances Aid Flood Engineers

*In the last decade options have been suggested to the Log-Pearson III (LP3) computation for predicting design flood behavior in semi-arid conditions. Observations from an ongoing study...*

Thermal Plumes from Staged Diffusers into a Uniform Quiescent Environment

*The behavior of thermal plumes from staged multiport diffusers was investigated experimentally. The three-dimensional temperature distribution was measured by scanning thermistor rakes...*

Flow Distribution in Multiple Channels with Partial Ice Coverage

*It is not uncommon for rivers to have multiple channels. The distribution of the total flow to the individual channels depends on their relative hydraulic characteristics of depth, width...*

Uncertainty of Runoff Volume as a Function of Rainfall and Catchment Characteristics

*The expected variability of runoff volume due to the uncertainties in spatial distribution of rainfall and catchment characteristics is quantified. A physically-based mathematical model...*

Riprap Stability Results from Large Test Channel

*Velocity data from a large test channel were used to determine the distribution of depth-averaged velocity and shear stress on the side slope of both straight and curved channels. From...*

Scour in Non-Cohesive Beds at Culvert Outlets

*An empirical relationship was developed to estimate the depth of scour in non-cohesive material at culvert outlets. The scour depth is expressed as a function of mean particle size of...*

Introduction of Variational Principle Into Open Channel Hydrodynamics

*Possible applications of the variational principle maximizing the entropy are illustrated. Open channel flow properties are expressed in terms of 'entropy parameter',...*

A Regionalized Rainfall-Runoff Stochastic Model

*The single area unit hydrograph model is used to develop a distribution model which accommodates the uncertainty in rainfall over the catchment. By categorizing the available rainfall...*

Comparison of Correction Factor for Dispersion Coefficient Based on Entropy and Logarithmic Velocity Profiles

*Recently, new velocity distribution equations have been developed by Chiu (1987, 1989) through the use of maximum entropy principle. A comparison will be made of the correction factor...*

Application of the Ackers-White Procedure for Transport by Size Fractions and Testing in HEC-6

*Modification of the Ackers-White method for the calculation of sediment transport by size fractions has led to a procedure which not only permits such calculations, but also increases...*

Pressure and Stress Distributions Due to a Submerged Impinging Jet

*This investigation examines the pressure and shear stress distribution at a smooth planar boundary in the impingement region of a submerged vertical jet in water. The mean pressure and...*

Physical Forces Generated by Barge-Tow Traffic Within a Navigable Waterway

*Movement of navigation traffic such as barge tows within a restricted inland waterway such as the Illinois, Mississippi, or Ohio Rivers can and will alter the flow field in and around...*

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