Water Supply and Storage

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https://hdl.handle.net/10217/195482

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Now showing 1 - 20 of 73

Open Access
15th annual Central Plains irrigation conference and exposition proceedings
(Colorado State University. Libraries, 2003-02) Central Plains Irrigation Conference, author
Open Access
A complete plan "…experiences from the U.S."
(Colorado State University. Libraries, 1989) Macy, Peter, author; U.S. Committee on Irrigation and Drainage, publisher
Open Access
A history of drought in Colorado: lessons learned and what lies ahead
(Colorado State University. Libraries, 2000-02) McKee, Thomas B., author; Doesken, Nolan J., author; Kleist, John, author; Shrier, Catherine J., author; Stanton, Willaim P., author; Colorado State University, Colorado Water Resources Research Institute, publisher
Open Access
A management improvement process to effectively change irrigated agriculture
(Colorado State University. Libraries, 1989) Dedrick, A. R., author; Clyma, Wayne, author; Palmer, J. D., author; U.S. Committee on Irrigation and Drainage, publisher
A management improvement program to improve the performance of irrigated agriculture is described. The improvement process entails three general phases. Diagnostic analysis is an interdisciplinary field study to thoroughly understand the actual performance of an irrigation system. Areas of high and low performance are identified. Management planning is a process for organizational change. The process uses the information and understanding obtained from the diagnostic analysis to make important changes in physical structures and/or management procedures for improving irrigation system performance. Management performance is carrying out the management plan. Monitoring and evaluation is included to assist in management decision making and to measure the impact of the changes on system performance. The management planning is done by the key managers in an irrigated area, farmer representatives, and representatives from other involved organizations. Conscious, deliberate applications of the processes offer important advantages to the farming community and to water management professionals. The results are effective, appropriate solutions to many relevant problems in irrigation.
Open Access
A methodology for analyzing alternative reservoir shortage and operating criteria
(Colorado State University. Libraries, 1989) Oamek, George, author; Schluntz, Larry, author; Bottorft, Loren, author; Johns, Eldon, author; U.S. Committee on Irrigation and Drainage, publisher
The Bureau of Reclamation's shifting emphasis from a construction oriented agency to a water management agency has initiated the development of analytical tools for estimating the benefits, and changes in benefits, of alternative reservoir sizes (for new projects) and operating criteria (for existing projects). This paper presents a new methodological approach for estimating the marginal, or change in, economic benefits for a project and applies it to several case studies. The modeling system developed from this effort links a spreadsheet-based model of reservoir operations to economic models of various demand sectors, including irrigation, municipal and industrial uses (M&I), and instream flow. Linking the models results in quick response in estimating the annual marginal economic benefits of alternative reservoir sizes and operating criteria. When applied to a case study of an existing Southern California reservoir, the modeling system estimated the annual benefits of reservoir enlargement and changes in operating criteria. Additional case studies for projects in Oregon, Kansas, and Colorado have demonstrated the ability of the methodology to be adapted to a wide range of hydrologic conditions and project purposes.
Open Access
A modeling approach for assessing the feasibility of ground-water withdrawal from the Denver Basin during periods of drought
(Colorado State University. Libraries, 1991-04) Jaunarajs, Sigurd R., author; Poeter, Eileen, author; Colorado Water Resources Research Institute, Colorado State University, publisher
Open Access
A stochastic programming model of salinity in the Colorado River Basin
(Colorado State University. Libraries, 1989) Lee, Donna J., author; Howitt, Richard E., author; U.S. Committee on Irrigation and Drainage, publisher
Along the Colorado River, naturally occurring salts underlie basin soils. Irrigation water leaches salt from the soil and return flows transport the salt to the river. As a result of salinity, downstream agricultural, municipal, and industrial uses suffer millions of dollars in damages each year. Weather variability can induce large swings in river flow volume, and hence river salinity. During periods of drought, problems due to salinity are worst. Currently, water quality policy decisions are based on average river flows. As a result, river water quality may exceed federal salinity standards during low flow years. This research details an approach for selecting mitigation alternatives to meet or exceed water quality standards under variable river flow conditions. Decisions are based on the value of clean water to downstream agriculture, the cost of mitigation, the variability of river flows, and the risk criteria of policy makers. Regions included in the model are the Grand Valley and Lower Gunnison Basin in Colorado, the Uinta Basin and the Price and San Rafael Regions in Utah, and the Imperial Valley in California.
Open Access
Agricultural water stewardship: recommendations to optimize outcomes for speciality crop growers and the public in California
(Colorado State University. Libraries, 2011-06) California Roundtable on Water and Food Supply, author
The California Roundtable on Water and Food Supply (CRWFS) is a consensus-based forum for thought leaders to uncover obstacles, identify solutions, and take action to enhance water security for agriculture, the public and the environment. Participants share a dedication to a healthy and balanced future for California and each bring deep experience on issues at the intersection of water supply and agriculture to the table. Roundtable members identified agricultural water stewardship as a key area of importance for sound long-term water management. The group held a series of meetings to build a common understanding of agricultural water use, develop a unified set of principles that underlie long-term solutions, the need to optimize water use through urban and agricultural water stewardship, and create recommendations for decision-makers and the public on balanced solutions to tough agricultural water issues. This report is the product of those efforts.
Open Access
An economic analysis of water use in Colorado's economy
(Colorado State University. Libraries, 1975-12) Gray, S. Lee (Sanford Lee), author; McKean, John R., 1939-, author; Sparling, Edward W., author; Weber, Joseph C., author; Environmental Resources Center, Colorado State University, publisher
Open Access
An economic input-output study of the High Plains region of eastern Colorado
(Colorado State University. Libraries, 1982-02) McKean, John R., 1939-, author; Ericson, Ray K., author; Weber, J. C., author; Colorado Water Resources Research Institute, Colorado State University, publisher
Open Access
Artificial aquifer recharge in the Colorado portion of the Ogallala Aquifer
(Colorado State University. Libraries, 1984-11) Longenbaugh, R. A. (Robert A.), author; Miles, Donald, author; Hess, Earl, author; Rubingh, James, author; Colorado Water Resources Research Institute, Colorado State University, publisher
Open Access
Bureau of Reclamation and the drought relief acts of 1977 and 1988
(Colorado State University. Libraries, 1989) Phillips, Tom, author; Ludwig, Jane, author; U.S. Committee on Irrigation and Drainage, publisher
Drought conditions in widespread portions of the Western United States occurred in 1977 and again in 1987 and 1988. In each case, the Congress of the United States responded by passing legislation directing the Bureau of Reclamation to mitigate the effects of the drought through financial aid and resource management. The Drought Act of 1977 and the Reclamation States Drought Assistance Act of 1988 are essentially repetitive, differing in some implementation constraints and in some areas of emphasis. Both acts are inadequate to address the emergency nature of drought programs due to time-consuming Federal restrictions that are not waived, a lack of existing directives for implementing contingency plans, and a myriad of conflicting local, state, and Federal laws and policies. The drought crisis has passed before programs can be implemented to conserve or redistribute scarce water resources or to provide financial aid. The paper compares the two acts and provides suggestions for more appropriate legislation response for future droughts.
Open Access
Central Plains irrigation short course and exposition proceedings
(Colorado State University. Libraries, 1998-02) Central Plains Irrigation Conference, author
Open Access
Central Plains irrigation short course and exposition proceedings
(Colorado State University. Libraries, 2001-02) Central Plains Irrigation Conference, author
Open Access
Central Plains irrigation short course and exposition proceedings
(Colorado State University. Libraries, 1997-02-04) Central Plains Irrigation Conference, author
Open Access
Challenges facing irrigation and drainage in the new millennium. Volume 1, Technical sessions: meeting human and environmental needs through sustainability, rehabilitation, and modernization
(Colorado State University. Libraries, 2000-06) Deason, Wayne O., editor; Gates, Timothy K., editor; Zimbelman, Darell, D., editor; Anderson, Susan S., editor; U.S. Committee on Irrigation and Drainage, publisher
Open Access
Competing interests in water resources - searching for consensus
(Colorado State University. Libraries, 1997) Greydanus, Herbert W., editor; Anderson, Susan S., editor; U.S. Committee on Irrigation and Drainage, publisher
Open Access
Contemporary challenges for irrigation and drainage
(Colorado State University. Libraries, 1999) Burns, Joseph I., editor; Anderson, Susan S., editor; U.S. Committee on Irrigation and Drainage, publisher
Open Access
Designing a supplemental irrigation system
(Colorado State University. Libraries, 1989) Samani, Zohrab A., author; Hargreaves, George H., author; U.S. Committee on Irrigation and Drainage, publisher
In the dry season when the rainfall contribution to crop water requirement is not significant, the amount of land to be irrigated for maximum profit with a limited supply of water, can be easily calculated. However, in the rainy season when rainfall contributes a significant amount of the crop water requirement, the amount of land which can be irrigated by a supplemental irrigation system varies due to spatial variability of rainfall. In designing a supplemental irrigation system the long term variability of rainfall as well as economical parameters should be taken into account. This paper describes a methodology for designing a supplemental irrigation system and for calculating the optimum amount of land which should be irrigated with a limited supply of water. The optimum amount of land to be irrigated is calculated for one station in EI Salvador using crop yield models, long-term climatological data and economical parameters. since the day to day climatological data are not often available in many countries, the paper describes how a climatological data-base together with a weather generating model can be used to design a supplemental irrigation system.
Open Access
Drought induced problems and responses of small towns and rural water entities in Colorado: the 1976-1978 drought
(Colorado State University. Libraries, 1980-06) Howe, Charles W., author; Alexander, Paul K., author; Goldberg, Jo Anne, author; Sertner, Steven, author; Studer, Hans Peter, author; Colorado Water Resources Research Institute, Colorado State University, publisher
The climatological and hydrologic conditions across the State of Colorado during the 1976-1978 drought showed great diversity, adjacent drainage basins often experiencing quite different conditions. This emphasizes the importance of providing climatological information and assistance programs that are tailored to local areas (e.g. the Water Districts in Colorado). Small towns experienced the intensifying of problems that, for the most part, had existed for a long time: lack of adequate raw water; poor system performance and high loss of produced water from lack of maintenance; inadequate financing and the use of water revenues for general purposes; and, at times, inadequate management. The latter is often caused by high turnover as personnel are attracted to the larger towns. Town responses included emergency repairs, drilling wells, buying additional water rights and renting water from farmers, restrictions on water use, installation of meters, and increasing water charges (both price and flat rates). The town experience indicated that many effective counter-drought actions depend upon local knowledge and initiative. State and federal programs cannot substitute for this, so these higher level programs must be designed to stimulate local initiative and not to be "a reward for 50 years of bad management." Rural water entities providing mostly irrigation water experienced problems stemming in part from over-irrigation in the early season, over-expansion of acreage relative to reliable water supply, and inflexible reservoir management. Cooperative sharing of water and water rentals among farmers frequently helped avoid the economic inefficiencies that would occur under strict application of priority rights. This emphasizes the importance of facilitating both the short and long-term transferability of water among uses. Major opportunities exist for conjunctive management of surface and tributary groundwaters. The State priority rights system currently prevents rational conjunctive management.