Applied Hydro System Operations Models
The paper discusses computer simulation of system operations. Computer programs that simulate operations through future time periods on hourly, daily or monthly time periods are routinely...
Operations Models of the Columbia Reservoir System
Several of the computer models used in management of the basin's reservoir system are described. Among the models discussed are the Streamflow Synthesis and Reservoir Regulation...
California Water Project Operation
The California State Water Project (SWP) is operated and managed using state-of-the-art operations research and optimization techniques. Medium- and long-range studies for the operation...
Model to Maximize Releases for Supplemental Generation in a Pump-Storage System
An optimization model has been developed to maximize releases for supplemental power generation in a pump-storage system. The model was developed to aid in the scheduling of pump-storage...
Evolving Institutions for Water Transfer in the U.S.
A major source of constraint is state water allocation law, which defines rights for water use and development, including in some cases restrictions on place of use that limit transfer....
Transferring Conserved Water
The proposal to transfer water salvaged by water conservation programs from one area to another is a new concept. Imperial Irrigation District (District), located in the southeast portion...
Interstate Agreements for Water Transfers
Any state is typically subjected to opposing forces that wish to 1) preserve limited water resources for future in-state uses, or 2) to export that resource for out-of-state use. Statutes...
Effects of Artificial Recharge on Ground-Water Quality, Long Island, New York
Artificial-recharge experiments were conducted at East Meadow in central Nassau County, Long Island, N. Y. , from October 1982 through January 1984, to evaluate the degree of ground-water...
Effect of African Drought on Water Resource Management in Egypt
1980 marked the beginning of the worst drought to hit the Sahel and east Africa in 70 years. The consequences of the drought were compounded by inappropriate farming methods, bureaucratic...
Scale Model Study Benefits Hydropower Project
The Jim Falls Project on the Chippewa River in Central Wisconsin deals with the replacement of an aged 11 MW run-of-river hydropower plant by a 48 MW peaking plant. A hydraulic model built...
Simplified Prediction of Storm Surge on an Open Coast Using a Microcomputer
Computer-generated wind fields have a flexibility that is not available with standard manual procedure; i. e. different illustrative concepts can be given a trial run at low cost. A spreadsheet...
Factual Issues in Water Rights Changes
When an appropriator of a water right desires to change the manner in which the right is exercised there are a number of factors that must be considered. These include the types of changes...
Maximum and Actual ET from Grasses and Grass-Like Plants
Two studies of mountain meadow water use were conducted along the Little Laramie River and in the Upper Green River Basin of Wyoming. Monthly and seasonal data from twelve non-weighing...
Phreatophyte Water Use Estimated by Eddy-Correlation Methods
Water-use was estimated for three phreatophyte communities: a saltcedar community and an alkali-Sacaton grass community in New Mexico, and a greasewood rabbit-brush-saltgrass community...
Water Use by Saltcedar in an Arid Environment
Specialized instruments and measurement techniques developed at the University of Arizona facilitate precise estimation of evapotranspiration (ET) with the energy budget model. Use of...
Sedimentation Problems of the California Aqueduct
The California Aqueduct crosses the alluvial fans of many intermittent streams on the west side of the San Joaquin Valley. At two sites where watershed sediment yields were underestimated,...
Sedimentation in the All-American Canal
During the planning for the All-American Canal, by the U. S. Bureau of Reclamation as part of the Boulder Canyon Project, works were designed at the head of the canal to remove between...
Uncertainties in Groundwater Transport Modeling
Using synthetic data from a hypothetical aquifer, the effects of data availability and data uncertainty were studied by the combined use of a parameter identification (PI) algorithm and...
Estimation and Inference in the Inverse Problem
The estimation of groundwater flow and mass transport parameters is approached via maximum likelihood. Confidence intervals and hypothesis tests as well as the asymptotic properties of...
Improving Streamflow and Water Quality Below Dams
Progress by the Tennessee Valley Authority on improving dissolved oxygen (DO) and flow conditions below hydropower projects is discussed. New methods of turbine venting have resulted in...
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