Thermodynamic Factors in Evapotranspiration
Many of the methods discussed in this paper are refinements of procedures presented in the report 'Consumptive Use of Water and Irrigation Water Requirements'...
Bowen Ratio and Penman: Australian-California Tests
Results are presented of evapotranspiration (ET) studies conducted in Davis, California and at two locations in Australia. Good agreements were obtained in early comparisons of Bowen Ratio...
Calibration of an Evapotranspiration Model Using Eddy Correlation Methods
An evapotranspiration (ET) prediction model was developed by calibrating the H. L. Penman equation for an alfalfa reference crop in the southwestern Oklahoma region. Evaporative flux for...
Dormant Season Evapotranspiration in Alfalfa
Weekly values of maximum temperature, minimum temperature, and solar radiation were examined for their effect upon weekly dormant season evapotranspiration (ETdorm) in perennial alfalfa....
Water Rights Considerations Associated With Channel Conveyance Losses
During 1986, the Wyoming Water Research Center and the State Engineer's Office cooperatively did a study on the conveyance losses associated with a section of stream channel...
Satellite Data for Adjudications in Idaho
A succession of events following a lawsuit by a power company against the state of Idaho has led to a general adjudication for a majority of the Snake River basin in Idaho. Past adjudication...
Distributed Ground-Water Data Base of the U.S.G.S.
During the past 20 years, the ground-water data base of the U. S. Geological Survey has evolved from paper files in local offices, to a national data base on a central mainframe computer,...
Crop-Water Production Functions and System Design
A Task Committee to evaluate application of crop-water production functions to irrigation system design and management was established by the ASCE Irrigation Water Requirements Committee...
Adding a Climatic Interface to Electronic Irrigation Controllers
Automated irrigation systems have traditionally relied on a time based controller set to operate the irrigation system for a specific duration and frequency. To determine the duration...
Reclaiming Wastewater in Phoenix, Arizona
This paper examines the role of wastewater effluent reuse in the future water resource management of the City of Phoenix. The paper seeks to explain why a proposal to renovate effluent...
The Reclaimed Water Delivery System and Reuse Program for Tucson, Arizona
The City of Tucson has implemented a reclaimed water reuse program in a community-wide effort to preserve high quality groundwater for potable and other priority uses. Presently, the system...
Groundwater Vulnerability to Contamination: A Literature Review
Methods are needed to allow regulatory agencies and resource managers to predict, from readily available data, the potential for groundwater contamination problems. Regional maps developed...
High Plains States Groundwater Recharge Program
The Bureau of Reclamation is conducting a 2-phase program to demonstrate the feasibility of recharging declining aquifers in the 17 Western States. The U. S. Geological Survey, Environmental...
Transfer of Weather Modification Technology to Users
The Task Committee on Utilization of Weather Modification Technology was formed in October 1984 with the stated purpose 'To facilitate the transfer of information concerning...
Feasibility of Weather Modification for California's State Water Project
The California Department of Water Resources (DWR), in the mid 1950's, contracted with some 30 water agencies to eventually furnish about 4. 2 million acre-feet (MAF) of water...
Weather Modification Versus Drought?No Contest
The Colorado River Municipal Water District has sponsored a summertime West Texas cloud-seeding program to increase rainfall in each year since 1970. Because of the program's...
Three Rainfall Augmentation Programs in Texas
Three rainfall augmentation programs were initiated during the summer of 1985 in response to drought conditions affecting Texas in 1984. These programs were supported by two municipalities...
The Animas-La Plata Project Cost Sharing Agreement
The United States Congress required a cost-sharing agreement between the project beneficiaries and the Federal government. Under this agreement of June 30, 1986, the project will be constructed...
Economic Benefit of Irrigation on Beef Ranches
Drought can result in forage shortages leading to possible liquidation of the breeding herd. Liquidation is often at depressed prices, and replacement may be at elevated prices. In this...
Optimum Irrigation Under Saline Conditions
A dynamic production function for cotton is estimated. Optimal irrigation volumes, timing, and qualities are calculated using dynamic programming. Optimal water quantities are sensitive...
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