The Use of the IWR-Main System as a Planning Tool in Phoenix, Arizona
The IWR-MAIN water demand forecasting model is used extensively as a long-range planning tool by the Phoenix Water and Wastewater Department. Its specific applications include: conservation...
Managing Water-Related Conflicts
the Engineer's Role
The problems facing water resources planners and managers are extensive. The major challenge is finding the key to cooperative rather than divisive approaches to water resources management....
Boundary Fitted Estuarine Water Quality Model
A two-dimensional, vertically-averaged boundary fitted coordinate pollutant transport model was developed for application to estuarine and coastal sea regions. The governing convective-diffusion...
Three-Dimensional Modeling of Pollutant Transport
A numerical model for pollutant transport in coastal waters has been developed in x-y-z-t space. The simplicity of a fixed Eulerian mesh and a computationally efficient Lagrangian approach...
2-D Particle Tracking Model for Estuary Mixing
This paper presents the development and analysis of a 2-D particle tracking or random walk model for the simulation of transport in vertically well-mixed estuaries. The model was tested...
High-Country Hydro
The North Fork Stanislaus River Hydroelectric Development Project is a new 205 MW $267 million hydro plant in the Sierra Nevada Mountains. Completed in 1989, the project was the largest...
Water Resources: How Do We Slice the Pie?
New and better ways must be found to: reduce water consumption; preserve environmental values; conserve and protect existing water supplies; use surface and ground water conjunctively;...
Glacial Icemelt in the Wind River Range, Wyoming
The Wind River Range of Wyoming contains the greatest concentration of glaciers in the American Rocky Mountains with two of the larger glaciers being Dinwoody and Gannett Glaciers. This...
Possible Climate Change and Its Impact on Snowmelt and Water Supply in California
Global climate modelers are forecasting relatively large future climate change, with warming of 2 to 5?C. These changes, if they do occur, would have major impacts on California's...
Procedures Used for Determining Water Rights on the Caribbean National Forest
In response to increasing demand, the Commonwealth of Puerto Rico enacted legislation requiring current users of water to file existing water uses. Application for water rights on the...
Management of Groundwater Overdraft in the Phoenix, Arizona, Area
By law, the overdrafting of groundwater in the Phoenix, Arizona, area must cease by the year 2025. Safe yield can be achieved by means of conservation, water supply augmentation, and condemnation...
Water Use by Naturally Occurring Vegetation
A new publication is available to aid the practicing hydrologist or engineer in estimating the water use of naturally occurring plants. It serves as a general introduction to the subject...
Upgrading of the Orange Cove Irrigation District Water Distribution System
The Orange Cove Irrigation District covers about 28,000 Acres in the Central Valley of California. It is supplied from the Friant-Kern Canal. A semi-closed low pressure pipeline system...
Conjunctive Use of Surface and Groundwater
A computer model was developed by T. Sammis and Z. Samani to simulate the conjunctive use of surface and groundwater. The model consisted of a groundwater simulation subroutine and a crop...
Performance Measures for Irrigation Water Delivery
Performance measures are developed which facilitate analysis of irrigation water delivery systems in light of the objectives of adequacy, efficiency, dependability and equity and of water...
Canal Automation for Flexibility on Sloping Canals
This project and tested a method which would allow flexible water deliveries from medium-large canals. The canal gate movement algorithm CARDD (Canal Automation for Rapid Demand Deliveries)...
Clean vs. Dirty Water Effects in Irrigation Systems
Seepage losses in irrigation systems may be significantly affected by the suspended solids concentrations of the water. Low-solids clean water increases losses; high-solids dirty water...
Delivering Appropriate Quantities of Water to the Farm
To study how well an irrigation district was able to meet farmer demand, water deliveries along two monitored lateral canals were compared to the orders and bills for these events. The...
Problems with Irrigation Technology Transfer in Latin America
Over the last thirty years there has been a significant drop in agricultural production in Latin America, despite the fact that agricultural, irrigation and drainage projects receive about...
Comprehensive Management of a Sole-Source Aquifer in Central Texas - A Model for Coping with Urban Development in Hydrologically Sensitive Areas
In the developing San Antonio/Austin area of central Texas, the Edwards Aquifer is highly vulnerable to contamination resulting from development. The Texas Water Commission (TWC) strives...
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