An Update on Surface Renewal Estimation of Evapotranspiration
The surface renewal (SR) method for estimating sensible heat flux density (H) has been shown to give good estimates of evapotranspiratiou (ET) when used in an energy balance equation with...
Habitat Preservation and Enhancement Associated with San Diego Creek Flood Control Channel Improvement
San Diego Creek, an important regional flood control channel in southern Orange County, California, flows 2.4 kilometers through the mixed-use areas of Irvine Center (San Diego Freeway...
Rehabilitating Arctic Tundra in Alaska
During the past 25 years, there has been significant progress in tundra rehabilitation. Initially, agronomic practices requiring large quantities of grass seed and fertilizer were believed...
The Importance of Plant Community Structure on Form and Function of Created Wetland Systems
If we consider that the creation and the restoration of a wetland system begins with the design of the hydrology, then establishing the form and function of a wetland begins with the design...
Shallow and Surfacing Ground Water in an Arid Urban Environment
Return flow from landscape irrigation is now a major recharge source and the loss of phreatophytic vegetation has caused decreased evapotranspiration discharge in Henderson, Nevada. Lateral...
Vegetative Roughness in Flood Control Channels
Laboratory flume tests and field evaluations were undertaken as a part of the Flood Control Channels Research Program to determine hydraulic roughness values for various types of floodplain...
Simulation of Perilithic Algae as a Biofilm and Its Interaction with the Water Column
A one-dimensional bioflim model has been constructed consisting of a particulate phase of algae and inert material and diffusive transport of nutrients and oxygen. Also included is mass...
Neural Networks Predict Pesticide Leaching
The goal of this work was to determine whether artificial neural networks (ANN) can be used to predict the percentage of applied pesticide that leaches through 50 cm of turfgrass covered...
Efficiencies of Drainage Systems and Improved Water Management
Drainage of agricultural lands has become a contentious issue as concern increases over the actual economic benefits of subsurface drainage in irrigated regions relative to the impacts...
An Experimental Study on the Use of Constructed Wetlands for Stormwater Management
The purpose of this study is to compare the pollutant removal effectiveness of selected wetland vegetation such as cattails, reeds, and bulrushes by using laboratory bucket wetlands. Pollutants...
Role of Vegetation in Hydraulics of Channel Restoration
Boundary layer theory is used to develop a backwater model for flows through vegetated waterways which can be employed to approximately estimate flow depth variation in channel restoration...
Are Erosion Control Programs Reducing Sedimentation?
In the Midwest, the USEPA National Watershed Monitoring Program is determining the effectiveness of land management strategies to improve water quality and biological diversity. The illinois...
Design Guidelines for Bioengineered Bank Stabilization
Design of bioengineered slope stabilization measures in riverine environments to minimize rates of stream bank erosion requires accounting for hydrologic, hydraulic, geomorphic, geotechnical,...
Protecting Dredged Material Containment Levees along the Houston Ship Channel
This paper describes the background, selection, installation, and performance of the three-dimensional woven geotextile used for erosion protection along 122 meters (400 feet) of levee...
From Natural Disaster to Human-Caused Disaster
This paper deals with the assessment of the environmental effects of the channelization, which has been monitored throughout the first year after completion of the project. Although the...
Synchronized Measurements of Bed-Shear Stress and Flow Velocity in Open Channels with Simulated Vegetation
Synchronized measurements of shear stresses at the bed and velocities both within and above a simulated plant canopy in an open-channel flow are presented. Traditional (hot-film sensors)...
A New Technique for Measuring Vegetation Density
Detennination of the discharge capacity of a vegetated channel or floodplain requires a reasonable estimate of a flow resistance coefficient; such as Manning'
Vegetation-Induced Drag: An Experimental Study
Open-channel flow models through vegetative canopies require a quantitative measure of the ability of plants to absorb momentum by form drag, which is commonly characterized in terms of...
A Decision Making Approach for Stormwater Management Measures?A Case Example in the City of Waukesha, Wisconsin
An urban nonpoint source pollution predictive model (Source Load and Management Model?SLAMM; Wisconsin Department of Natural Resources, 1990), and a decision matrix developed specifically...
A Design for a Football Stadium Roof Enabling Growth of a Natural Grass Playing Surface: Sydney Football Stadium - Australia
This paper discusses the development of a design for a stadium roof which will provide conditions allowing the growth of a wearable natural grass surface suitable for sports including...
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