Your search found 543 records
1 Reddy, J. M.; Clyma, W. 1984. Irrigation system improvement by simulation and optimization. Cairo, Egypt: Egypt Water Use and Management Project. 2 vols.; iv, 26p.; v, 35p. (EWUP technical report no.16; no.16B)
Simulation ; Optimization ; Mathematical models ; Canal linings ; Irrigation efficiency ; Benefits ; Water conveyance / Pakistan
(Location: IWMI-HQ Call no: 631.7.1 G730 RED Record No: H0159)
Vol. 1 - Theory. A theory for simulation and optimization of an irrigation system to evaluate improvement alternatives was presented. The mathematical simulation model of an irrigation system was developed combining existing models of conveyance, application and water use subsystems. The performance of the subsystem simulation models was verified using available field data from Pakistan. A methodology for the optimal design of a level basin irrigation system was described. Irrigation system improvement alternatives such as canal lining, earthen improvement of the application system were evaluated. Vol. 2 - Application. Wheat production on a watercourse in Pakistan was analyzed. Models for water conveyance, application, and water use subsystems were calibrated with data from the study area. The existing irrigation system operated at a 39 percent application efficiency and 53 percent conveyance efficiency. Optimal design of the application system with precision land leveling provided net benefits of 3625 rupees (Rs) compared to Rs 2612 under traditional field conditions. Canal lining was not economical. Earthen improvement of the conveyance system was beneficial to the farmer with a net profit of Rs 3304. Combined improvement of the application and conveyance systems almost doubled the total net benefits over the traditional system, but with an increased level of investment. The increase in benefits was mostly a result of the increased irrigated area that could be irrigated after the improvements. The benefit/cost ratio of each improvement alternative was different. The difference in benefits between improving the conveyance system and the application system was small, but there was a significant difference in net benefits between any single improvement and the combined improvement of the application and conveyance systems.
2 Burton, M. A.; Franks, T. R. 1983. Simulation and modelling for training in irrigation management. In W. M. Adams and A. T. Grove, Eds., Irrigation in tropical Africa: Problems and problem solving (pp. 131-141). Cambridge: African Studies Centre.
(Location: IWMI-HQ Call no: 631.7.8 G100 ADA Record No: H0183)
3 ICID. 1978. Special session on mass transfer of water over long distances for regional development and its effects on the human environment, Athens, 1978: Proceedings. New Delhi, India: ICID. 285p.
Financing ; Environmental effects ; Water conveyance ; Reservoirs ; Economic evaluation ; Simulation
(Location: IWMI-HQ Call no: ICID 631.7 G000 ICI Record No: H0704)
4 Yeh, W. W. G. 1985. Reservoir management and operations models: A state-of-the-art review. Water Resources Research, 21(12):1791-1818.
(Location: IWMI-HQ Call no: P 1185 Record No: H01440)
The objective of this paper is to review the state-of-the-art of mathematical models developed for reservoir operations, including simulation. Algorithms and methods surveyed include linear programming (LP), dynamic programming (DP), nonlinear programming (NLP), and simulation. A general overview is first presented. The historical development of each key model is critically reviewed. Conclusions and recommendations for future research are presented.
5 Majov, D. C.; Lenton, R. L. 1979. Applied water resources systems planning. New Jersey, NJ, USA: Prentice Hall. viii, 248 p.
Water resources development ; Mathematical models ; Simulation ; Irrigation design ; Planning / Argentina / Rio Colorado
(Location: IWMI-HQ Call no: 333.91 G510 MAJ Record No: H02641)
6 Sing, S. R.; Saini, A. K. 1986. A two dimensional finite element model for saturated unsaturated flow. In Regional Workshop on Groundwater Modelling, Roorkee, 12-17 December 1986. Roorkee, India: Water Resources Development Training Center, University of Roorkee. pp.21-42.
(Location: IWMI-HQ Call no: 631.7.6.3 G635 REG Record No: H02936)
7 Hoque, M. 1986. Numerical simulation of groundwater system. In Regional Workshop on Groundwater Modelling, Roorkee, 12-17 December 1986. Roorkee, India: Water Resources Development Training Center, University of Roorkee. pp.139-146.
(Location: IWMI-HQ Call no: 631.7.6.3 G635 REG Record No: H02942)
8 Chander, R.; Moharir, P. S.; Singhal, B. B. S. 1986. On applying cagniard technique to obtain exact analytic solutions of some groundwater flow simulation problems. In Regional Workshop on Groundwater Modelling, Roorkee, 12-17 December 1986. Roorkee, India: Water Resources Development Training Center, University of Roorkee. pp.147-152.
(Location: IWMI-HQ Call no: 631.7.6.3 G635 REG Record No: H02943)
9 Chowla, A. S. 1986. Mathematical model of groundwater - A case study. In Regional Workshop on Groundwater Modelling, Roorkee, 12-17 December 1986. Roorkee, India: Water Resources Development Training Center, University of Roorkee. pp.219-230.
(Location: IWMI-HQ Call no: 631.7.6.3 G635 REG Record No: H02948)
10 Lascane, R. J.; van Barel, J. L.; Hatfield, J. L.; Upchurch, D. R. 1987. Energy and water balance of a sparse crop: Simulated and measured soil and crop evaporation. Soil Science Society of America Journal, 51(5):1113-1121.
(Location: IWMI-HQ Call no: PER Record No: H03002)
11 Mishra, A. 1997. Performance evaluation, operational policies and flow hydraulics of canal delivery and on-farm irrigation system. In Water Technology Centre for Eastern Region, WTCER annual report 1996 - 97. Bhubaneswar, India: WTCER. pp.29-39.
Performance evaluation ; Irrigation operation ; Policy ; Flow control ; Hydraulics ; Irrigation canals ; Water delivery ; Sedimentation ; Simulation / India / Puri Main Canal / Phulnakhara Distributary
(Location: IWMI-HQ Call no: 631.7.1 G635 WAT Record No: H022000)
12 Smith, L. E. D. 1986. Computers in irrigation management - B: the role of simulation exercises in training irrigation managers. London, UK: ODI. pp.13-20. (ODI/IIMI Irrigation Management Network Paper 86/2c)
(Location: IWMI-HQ Call no: ODI/IIMI 86/2c Record No: H003473)
(0.48 MB)
13 Lindner, W.; Lindner, K.; Karadi, G. 1988. Optimal groundwater management in two-aquifer systems. Water Resource Bulletin, 24(1):27-33.
Groundwater management ; Aquifers ; Mathematical models ; Simulation ; Flow ; Optimization ; Hydraulics
(Location: IWMI-HQ Call no: PER Record No: H03699)
14 Sundar, A.; Rao, P. S. 1984. SIMBOL: (Simulation of Irrigation Management Below Outlet) Bangalore, India: Indian Institute of Management. 60p.
Irrigation management ; Simulation ; Water distribution ; Statistics ; Rotation ; Yield response functions ; Fertilizers / India
(Location: IWMI-HQ Call no: 631.7.2 G635 SUN Record No: H03981)
15 Al-Bowrthan, A. A. 1987. Water management schemes in Al-Hassa Irrigation and Drainage Authority. Paper submitted to the sixth Asio-African Conference, Cairo, 9-15 March 1987. 31p.
Water management ; Irrigation programs ; Simulation ; Automation ; Water distribution ; Water budget ; Maintenance ; Constraints ; Water reuse / Saudi Arabia
(Location: IWMI-HQ Call no: P 175 Record No: H04075)
16 USAID. Irrigation Division, Technical Resource Unit, India. 1985. Selected visual aids for irrigation water management training. USAID. 28p.
(Location: IWMI-HQ Call no: 631.7 G000 USA Record No: H03968)
17 Maheshwari, B. L.; Turner, A. K.; McMahon, T. A.; Campbell, B. J. 1988. An optimization technique for estimating infiltration characteristics in border irrigation. Agricultural Water Management, 13(1):13-24.
(Location: IWMI-HQ Call no: PER Record No: H04256)
18 ASAE. 1987. Drainage design and management: Proceedings of the Fifth National Drainage Symposium, Chicago, 14-15 December 1987. St. Joseph, MI, USA: ASAE. viii, 439p. (ASAE publication 07-87)
Drainage ; Design ; Water management ; Soil water movement ; Subsurface drainage ; Water quality ; Simulation
(Location: IWMI-HQ Call no: 631.7.1 G000 ASA Record No: H04308)
19 Dharmasena, P. B.; Keerthiratna, G. B. 1988. Agroclimatic analysis of selected locations in the dry zone of Sri Lanka. Andhra Pradesh, India: ICRISAT. vp.
Arid zones ; Agriculture ; Climate ; Rain ; Water balance ; Soil moisture ; Policy ; Crops ; Simulation / Sri Lanka
(Location: IWMI-HQ Call no: 551.6 G744 DHA Record No: H04317)
20 Sen, L. N.; Wickham, T. 1977. Field studies of effective rainfall for lowland rice. Paper presented at the P.S.A.E. Symposium on Soil and Water in Manila, Philippines, 19 November 1977. 37p.
Rice ; Irrigated farming ; Rain-fed farming ; Simulation ; Farmers' attitudes ; Drainage / Philippines
(Location: IWMI-HQ Call no: P 231 Record No: H04344)
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