Your search found 25 records
1 Loof, R.; Paudyal, G. N.; Manguerra, H. B. 1991. Mathematical modelling of irrigation canal systems: State of the art. Bangkok, Thailand: AIT. vii, 127p. (Improved operation and management of large scale irrigation systems monograph no.2)
(Location: IWMI-HQ Call no: 631.7.1 G000 LOO Record No: H08306)
2 Paudyal, G. N.; Loof, R.. 1988. Improvement of irrigation system operation. Bangkok, Thailand: AIT. viii, 75p. (Research report no.211)
(Location: IWMI-HQ Call no: 631.7.6.1 G000 PAU Record No: H09001)
3 Das, B.; Loof, R.; Paudyal, G. N. 1992. Integrated approach for the main system operation and management in a canal irrigation system. 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.737-745.
Irrigation canals ; Irrigation systems ; Irrigation management ; Irrigation operation ; Simulation models ; Mathematical models ; Optimization methods ; Decision support tools
(Location: IWMI-HQ Call no: 631.7.1 G000 FEY Record No: H014454)
4 Onta, P. R.; Mekpruksawong, P.; Loof, R.. 1993. Impact of the spatial distribution of rainfall on irrigation water demand. In ICID, 15th International Congress on Irrigation and Drainage, The Hague, The Netherlands, 1993: Water management in the next century. Transactions: Vol.1-B, Question 44, R36-R72: Planning and design of irrigation and drainage systems. New Delhi, India: ICID. pp.885-897.
(Location: IWMI-HQ Call no: ICID 631.7 G000 ICI Record No: H015253)
5 Tingsanchali, T.; Loof, R.; Jha, R. 1993. Water resources utilization in the Chao Phraya river basin with minimum water shortage and environmental hazards. In Tingsanchali, T. (Ed.), Proceedings of the International Conference on Environmentally Sound Water Resources Utilization, Bangkok, Thailand, 8-11 November 1993. Vol.2. Bangkok, Thailand: AIT. pp.III-32-42.
Water resource management ; Water use ; River basins ; Irrigation programs ; Simulation models ; Crop production / Thailand
(Location: IWMI-HQ Call no: 333.91 G000 TIN Record No: H015820)
6 Loof, R.; Das, B.; Paudyal, G. N. 1994. Improved operation of large irrigation canal systems in Southeast Asia. International Journal of Water Resources Development, 10(4):393-415.
Irrigation canals ; Simulation models ; Mathematical models ; Case studies / South East Asia / Thailand
(Location: IWMI-HQ Call no: PER Record No: H016117)
Poor performance of the irrigation systems in Southeast Asian countries is a cause for concern considering the increasing water scarcity. Lack of adequate knowledge and systematic ignorance of main system management has been identified as one of the primary factors for the resulting poor performance of these systems. In this study a model has been developed for operating the main canal of these systems by integrating hydraulics of the flow and decision-making technique. The model developed was applied to the main canal of the Phitsanulok Irrigation Project in Northern Thailand. The results of this application approved the concept and envisaged substantial improvement in the operation of the main canal. The model can in general be applied to similar irrigation systems in the developing countries.
7 Maskey, R. K.; Weber, K. E.; Loof, R.. 1994. Equity aspects of irrigation development: Evidence from two systems in the hills of Nepal. International Journal of Water Resources Development, 10(4):431-443.
Irrigation management ; Equity ; Water distribution ; Farmer managed irrigation systems ; Government managed irrigation systems ; Rice ; Wheat / Nepal
(Location: IWMI-HQ Call no: PER Record No: H016120)
Equity is of great relevance to developing irrigation. Its two dimensions - horizontal in regard to water distribution to farmland and vertical in terms of productivity differences between farm categories are studied in two irrigation systems, an old farmer-managed and a new government-agency-managed system. Equity in the distribution of irrigation water differed between abundant and scarce water supply conditions. Paddy grown during the monsoon season when water is available in abundant quantity shows that there was a reasonable degree of fairness in its distribution between head and tail reach farmland. However, wheat grown in the dry season with limited supply of water rendered evidence of unfair distribution demanding better management of irrigation water. The analysis of vertical equity shows that small farms are more efficient than large ones in increasing productivity through the use of irrigation facilities.
8 Onta, P. R.; Loof, R.; Banskota, M. 1995. Performance based irrigation planning under water shortage. Irrigation and Drainage Systems, 9(2):143-162.
Water allocation ; Equity ; Irrigation management ; Linear programming ; Simulation models ; Optimization ; Performance ; Water shortage ; Irrigation efficiency / Nepal
(Location: IWMI-HQ Call no: PER Record No: H017434)
A linear programming (LP) based optimization model and a simulation model are developed and applied in a typical diversion type irrigation system for land and water allocation during the dry season. Optimum cropping patterns for different management strategies are obtained by the LP model for different irrigation efficiencies and water availability scenarios. The simulation model yields the risk-related irrigation system performance measures (i.e. reliability, resiliency and vulnerability) for the management policies defined by the optimization model. The alternative strategies are evaluated in terms of all performance criteria (i.e. net economic benefit, equity and reliability) simultaneously through a trade-off analysis using a multi-criteria decision making method (compromise programming). For the case study of the Kankai Irrigation System in Nepal, with equal preference to the objectives, a management strategy with equal share of water among the project subareas appears to be the most satisfactory alternative under water shortage conditions. The existing water allocation policy is not economically efficient. Deficit irrigation in early paddy appears attractive under favorable hydrologic scenario, particularly if accompanied by measures to improve existing irrigation system efficiency.
9 Tingsanchali, T.; Loof, R.; Jha, R. 1995. Water resources utilization in the Chao Phraya River Basin with minimum water shortage and environmental hazards. Water Resources Journal, 184:90-96.
River basin development ; Water use ; Water resource management ; Simulation models ; Irrigation programs ; Irrigation efficiency ; Environmental effects ; Drought ; Rain / Thailand / Chao Phraya River Basin
(Location: IWMI-HQ Call no: PER Record No: H017947)
10 Onta, P. R.; Das Gupta, A.; Loof, R.. 1996. Potential water resources development in the Salween river basin. In Biswas, A.K.; Hashimoto. T.(Eds) Asian international water: From Ganges-Brahmaputra to Mekong. Bombay, India: OUP. pp.134-172. (Water resources management series:4)
Irrigation programs ; River basin development ; Environmental effects ; Regional development ; Water transfer ; Water resources development / Myanmar / Thailand / Salween River
(Location: IWMI-HQ Call no: 333.91 G570 BIS Record No: H020105)
11 Manguerra, H. B.; Chuenchooklin, S.; Loof, R.. 1992. Implementing SYMO in Phitsanulok Irrigation Project, Thailand. In IIMI; CEMAGREF. International Workshop on The Application of Mathematical Modelling for the Improvement of Irrigation Canal Operation, October 26-30, 1992, Montpellier, France. pp.25-39.
Irrigation canals ; Irrigation programs ; Decision support tools ; Canal regulation techniques ; Computer models ; Simulation models ; Case studies / Thailand / Phitsanulok Irrigation Project / Nan River
(Location: IWMI-HQ Call no: IIMI 631.7.1 G000 IIM Record No: H022409)
(0.99 MB)
12 Mainuddin, M.; Gupta, A. D.; Loof, R.. 1998. Multiobjective decision making in groundwater irrigation planning. Water Resources Journal, 196:16-28.
Groundwater management ; Groundwater irrigation ; Planning ; Decision making ; Mathematical models ; Irrigation programs ; Case studies ; Constraints ; Irrigation requirements ; Crop yield ; Analysis / Thailand / Sukhothai
(Location: IWMI-HQ Call no: PER Record No: H022595)
13 Loof, R.; Hungspreug, S.; Abernethy, C. L.; Wongprasittiporn, C.; Mainuddin, M. 1999. Evaluation of operational performance information and communication in a large irrigation system: Phitsanulok Irrigation System, Thailand. Pathumthani, Thailand: AIT. Regional Environmental Management Center. xiv, 140p. + appendices. (REMC monograph no.1)
Irrigation management ; Irrigation systems ; Large-scale systems ; Irrigation canals ; Water control ; Water measurement ; Drainage ; Groundwater ; Climate ; Irrigated farming ; Water users ; River basins ; Water management ; Planning ; Water delivery ; Water distribution ; Equity ; Constraints ; Gates ; Seepage ; Hydraulics ; Management Information Systems ; Communication ; Performance evaluation ; Irrigation operation ; Decision making ; Shallow tube wells ; Farmer participation / Thailand / Phitsanulok Irrigation System / Nan River / Naresuan Dam / Sirikit Storage Dam
(Location: IWMI-HQ Call no: 631.7.8 G750 LOO Record No: H024219)
14 Sahoo, G. B.; Loof, R.; Abernethy, C. L.; Mainuddin, M. 1999. Optimised and actual performance in a large irrigation system in Thailand. Zeitschrift für Bewässerungswirtschaft, 34(2):125-151.
Irrigation systems ; Irrigation programs ; Optimization ; Linear programming ; Models ; Planning ; Water requirements ; Crop production ; Irrigation management ; Policy ; Water delivery ; Performance indexes / Thailand / Phitsanulok Irrigation System
(Location: IWMI-HQ Call no: PER Record No: H025364)
15 Rieser, A.; Oron, G.; Hungspreug, S.; Loof, R.. 1998. GIARA D-204 - Systems analysis for irrigation performance assessment. Final report. Unpublished report, Water Engineering and Management Program of the School of Civil Engineering, AIT. xi, 119p. + appendices.
Irrigation programs ; Irrigation systems ; River basin development ; Water management ; Planning ; Irrigation management ; Large-scale systems ; Performance evaluation ; Irrigation canals ; Water control ; Water measurement ; Drainage ; Groundwater ; Irrigated farming ; Water user associations ; Water delivery ; Water distribution ; Equity ; Constraints ; Seepage ; Management Information Systems ; Communication ; Organizational design ; Operations ; Maintenance ; Dams ; Flood control ; Farmer participation ; Decision making ; Shallow tube wells / Thailand / Phitsanulok Irrigation System / Nan River / Yom River / Naresuan Diversion Dam / Sirikit Storage Dam
(Location: IWMI-HQ Call no: P 5448 Record No: H025925)
16 Regmi, P. P.; Weber, K. E.; Loof, R.. 2000. The importance of irrigation in ecological restructuring: Empirical evidence from Nepal. Water Resources Journal, 204:29-38.
Irrigated farming ; Rain-fed farming ; Crop production ; Productivity ; Crops ; Diversification ; Vegetables ; Rice ; Maize ; Wheat ; Potatoes ; Crop yield ; Rivers ; Water resources ; Groundwater ; Water table ; Aquifers ; Water potential ; Mountains ; Cost benefit analysis / Nepal
(Location: IWMI-HQ Call no: PER Record No: H026406)
17 Loof, R.; Abernethy, C. L.; Mishra, V. S. 2000. Gate operation rules in canal irrigation systems: A case study of Khageri Irrigation System, Nepal. ICID Journal, 49(3):1-24.
Irrigation systems ; Irrigation canals ; Gates ; Canal regulation techniques ; Flow control ; Water distribution ; Operations ; Maintenance ; Water user associations ; Case studies / Nepal / Khageri Irrigation System
(Location: IWMI-HQ Call no: PER Record No: H026572)
18 Ines, A. V. M.; Das Gupta, A.; Loof, R.; Abernethy, C. 2000. Estimating water productivity using GIS and crop models. In International Association for Hydraulic Engineering and Research (IAHR). Aisa and Pacific Division (APD). Sustainable water resources management: issues and future challenges. Proceedings of the 12th Congress of the Asia and Pacific Division of the International Association for Hydraulic Engineering and Research, Bangkok, Thailand, 13-16 November 2000. Volume IV - Water resources development and management. Bangkok, Thailand: Asian Institute of Technology (AIT). Regional Environmental Management Center (REMC). pp.1439-1448.
Water productivity ; Estimation ; GIS ; Models ; River basins ; Irrigated farming ; Plant growth ; Rice ; Maize / Philippines / Ilocos Norte / Laoag River Basin
(Location: IWMI HQ Call no: 333.91 G000 INT Record No: H027728)
19 Ashrafi, S.; Gupta, A. D.; Loof, R.; Izumi, N.; Babel, M. S. 2000. A method for determination of lateral spacing of the porous pipes in subsurface irrigation. In International Association for Hydraulic Engineering and Research (IAHR). Aisa and Pacific Division (APD). Sustainable water resources management: issues and future challenges. Proceedings of the 12th Congress of the Asia and Pacific Division of the International Association for Hydraulic Engineering and Research, Bangkok, Thailand, 13-16 November 2000. Volume IV - Water resources development and management. Bangkok, Thailand: Asian Institute of Technology (AIT). Regional Environmental Management Center (REMC). pp.1455-1462.
Subsurface irrigation ; Pipes ; Hydraulics ; Mathematical models ; Flow discharge ; Simulation ; Computer techniques
(Location: IWMI HQ Call no: 333.91 G000 INT Record No: H027729)
20 Sahoo, G. B.; Loof, R.; Abernethy, C. L.; Kazama, S. 2001. Reservoir release policy for large irrigation system. Journal of Irrigation and Drainage Engineering, 127(5):302-310.
Reservoir operation ; Operating policies ; Decision making ; Models ; Reservoir storage ; Linear programming ; Large-scale systems ; Irrigation programs ; Water allocation ; Seepage ; Water distribution ; Optimization ; Water supply ; Crop production ; Crop yield ; Water delivery / Thailand / Nan River Basin / Phitsanulok Irrigation Project / Sirikit Reservoir / Naresuan Dam
(Location: IWMI-HQ Call no: PER Record No: H029093)
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