Your search found 9 records
1 Sakthivadivel, R.; Merrey, D. J.; Fernando, N. 1993. Cumulative relative water supply: a methodology for assessing irrigation system performance. Irrigation and Drainage Systems, 7(1):43-67.
Relative water supply ; Irrigation systems ; Irrigation management ; Performance evaluation ; Paddy fields ; Water delivery performance ; Distributary canals / Sri Lanka / Kirindi Oya / Uda Walawe / Kalankuttiya / Dewahuwa
(Location: IWMI HQ Call no: PER Record No: H013372)
(1.39 MB)
This paper discusses the usefulness and limitations of using the concept of Relative Water Supply (RWS) for evaluating the performance of irrigation systems, with special reference to systems irrigating rice. It then describes and demonstrates the use of a modification of RWS called Cumulative Relative Water Supply (CRWS), which can be used in conjunction with RWS. The advantage of CRWS is that it provides a measure of the cumulated RWS throughout a season, both in absolute terms at any given time, and in terms of the overall seasonal trend. It allows comparison of performance of an irrigation system or subsystem both to the target, and to other systems or subsystems. It can therefore be used both as an analytical tool by researchers, and as an operational tool by managers. The use of CRWS in conjunction with RWS is illustrated with examples from Sri Lanka.
2 Rijo, M.; Almeida, A. B. 1993. Performance of an automatic upstream controlled irrigation system: Conveyance efficiencies. Irrigation and Drainage Systems, 7(3):161-172.
Water conveyance ; Flow measurement ; Flow control ; Water delivery performance ; Irrigation management / Portugal
(Location: IWMI-HQ Call no: PER Record No: H013081)
This paper presents a study of conveyance efficiencies in the Sorraia Irrigation Project, Portugal. The Irrigation Project is briefly described and flow measurement techniques are analyzed. Results show that efficiencies are higher during week days and normal labor hours and lower during weekends and at night. Water losses are higher than in other similar systems and the main reason is the substitution of the flow rotation method by restricted arranged schedules. An improvement process for saving water and accommodating deliveries to demands is also briefly presented.
3 Shahid, B. A.; Kuper, M.; Vander Velde, E. J. 1994. Improving canal system management: An intervention to calibrate control structures in Punjab, Pakistan. In IIMI. Pakistan, Tenth progress report on managing irrigation systems to minimize waterlogging and salinity problems. Lahore, Pakistan: IIMI. pp.38.
Irrigation canals ; Distributary canals ; Control methods ; Calibrations ; Water measurement ; Water delivery performance ; Irrigation management / Pakistan
(Location: IWMI-HQ Call no: IIMI 631.7.5 G730 IIM Record No: H014223)
4 Fernando, N. 1992. Monitoring irrigation water delivery performance: The concept of cumulative relative water supply (CRWS) In Feyen, J.; Mwendera, E.; Badji, M. (Eds.), Advances in planning, design and management of irrigation systems as related to sustainable land use: Proceedings of an International Conference organized by the Center for Irrigation Engineering of the Katholieke Universiteit Leuven in cooperation with the European Committee for Water Resources Management, Leuven, Belgium, 14-17 September 1992. Vol. 2. Leuven, Belgium: Center for Irrigation Engineering. pp.525-534.
Relative water supply ; Water delivery performance ; Irrigation canals ; Irrigation water ; Irrigation management ; Monitoring / Sri Lanka / Kirindi Oya
(Location: IWMI-HQ Call no: 631.7.1 G000 FEY Record No: H014433)
5 Johnson, S. H.; Vermillion, D. L. 1987. Irrigation management in Indonesia. Report prepared for presentation at the Center for Agricultural Economics Research, Bogor, Indonesia, 12 October 1987. 83p.
Irrigation management ; Agricultural production ; Agricultural development ; Water distribution ; Water delivery performance ; Water requirements ; Maintenance ; Crops ; Diversification ; Farmer participation ; Decision making ; Water allocation ; Monitoring ; Water rates ; Training needs assessment / Indonesia
(Location: IWMI-HQ Call no: IIMI 631.7.8 G662 JOH Record No: H015035)
6 Lado, C. G. 1994. Irrigation major delivery system performance assessment: The case of Rahad Irrigation Project. Unpublished thesis submitted to the University of Khartoum, Faculty of Agriculture, Shambat, Khartoum, in partial fulfillment for the degree of Master of Science. vi, 109p.
Irrigation systems ; Water delivery ; Performance indexes ; Performance evaluation ; Irrigation programs ; Irrigation operation ; Irrigation management ; Water delivery performance ; Equity ; Water control ; Irrigation canals ; Design ; Flow measurement / Sudan / Rahad Project
(Location: IWMI-HQ Call no: D 631.7.8 G146 LAD Record No: H016294)
7 Gates, T. K.; Ahmed, S. I. 1995. Sensitivity of predicted irrigation-delivery performance to hydraulic and hydrologic uncertainty. Agricultural Water Management, 27(3/4):267-282.
Water delivery performance ; Irrigation efficiency ; Irrigation canals ; Networks ; Stochastic process ; Simulation models / Egypt / Nile River
(Location: IWMI-HQ Call no: PER Record No: H016777)
8 Gideon, C; Saeed, A. B.; Mohammed, H. I. 1996. Major canal performance evaluation of Rahad Irrigated Scheme. In International Irrigation Management Institute (IIMI). Sudan Field Operations. Rahad Irrigation Scheme. Khartoum, Sudan: International Irrigation Management Institute (IIMI). Sudan Field Operations. pp.13-26. (Irrigation Management in Sudan Technical Report 2)
Irrigation programs ; Irrigation canals ; Water delivery performance ; Performance evaluation ; Performance indexes ; Irrigation management ; Irrigation scheduling ; Irrigation efficiency / Sudan / Rahad Irrigated Scheme
(Location: IWMI HQ Call no: IIMI 631.7.8 G146 IIM Record No: H019096)
(0.51 MB)
9 Piaget, J. 1999. Microsprinklers in South Africa. Irrigation Journal, 49(3):22-23.
(Location: IWMI-HQ Call no: PER Record No: H024262)
Powered by DB/Text WebPublisher, from
