Your search found 22 records
1 Paudyal, G. N.; Das Gupta, A.. 1990. Irrigation planning by multilevel optimization. Journal of Irrigation and Drainage Engineering, 116(2):273-291.
Irrigation management ; Optimization ; Case studies ; Cropping systems
(Location: IWMI-HQ Call no: PER Record No: H06257)
The complex problem of irrigation management in a large heterogeneous basin is solved by using a multilevel optimization technique. The real problem consists of determining the optimal cropping patterns in various subareas of the basin, the optimal design capacities of irrigation facilities including both the subsurface and groundwater resources, and optimal water allocation policies for the conjunctive use. The objective of such a management is to obtain a high level of economic efficiency in the irrigation development and water use system within a hydrologically feasible policy domain. Various alternative activities, such as surface water diversion and pumpage, ground water withdrawal and recharge, and alternative future operational scenarios, have to be analyzed in an integrated way. The solution strategy is based on the physical decomposition of a large system into interconnected subsystems. A computationally efficient algorithm that can be implemented in a microcomputer is developed to solve the multilevel linear programming model by an interactive procedure. A Case study is presented to illustrate the application in a realistic situation.

2 Paudyal, G. N.; Das Gupta, A.. 1990. A nonlinear chance constrained model for irrigation planning. Agricultural Water Management, 18(2):87-100.
Irrigation ; Planning ; Constraints
(Location: IWMI-HQ Call no: PER Record No: H06995)

3 Bogardi, J. J.; Das Gupta, A.; Jiang, H. Z. 1991. Search beam method: A promising way to define non-dominated solutions in multi-objective groundwater development. International Journal of Water Resources Development, 7(4):247-258.
Groundwater development ; Optimization ; Mathematical models
(Location: IWMI-HQ Call no: PER Record No: H09732)

4 Onta, P. O.; Das Gupta, A.; Harboe, R. 1991. Multistep planning model for conjunctive use of surface and ground-water resources. Journal of Water Resources Planning and Management, 117(6):662-678.
Groundwater resources ; Conjunctive use ; Economic aspects ; Mathematical models / Nepal
(Location: IWMI-HQ Call no: P 3183 Record No: H010106)
https://vlibrary.iwmi.org/pdf/H010106.pdf

5 Das Gupta, A.. 1993. Groundwater quality management. In Biswas, A. K.; Jellali, M.; Stout, G. E. (Eds.), Water for sustainable development in the twenty-first century. Delhi, India: OUP. pp.177-188.
Groundwater management ; Groundwater development ; Water quality ; Water pollution ; Monitoring ; Legislation / Asia
(Location: IWMI-HQ Call no: 333.91 G000 BIS Record No: H014404)

6 Onta, P. R.; Shakya, R. M.; Das Gupta, A.. 1994; 1993. Integrated use of surface and ground water for urban water supply in greater Kathmandu. Water Resources Journal, 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. December:10-15; pp.III-232-239.
Surface water ; Groundwater ; Water supply ; Water demand ; Mathematical models / Nepal / Kathmandu
(Location: IWMI-HQ Call no: PER, 333.91 G000 TIN Record No: H015832)

7 Das Gupta, A.; Onta, P. R. 1994. Groundwater management models for Asian developing countries. International Journal of Water Resources Development, 10(4):457-474.
Groundwater management ; Models ; Water quality ; Water pollution ; Salinity control ; Developing countries / Asia
(Location: IWMI-HQ Call no: PER Record No: H016122)

8 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)

9 Mainuddin, M.; Das Gupta, A.; Onta, P. R. 1997. Optimal crop planning model for an existing groundwater irrigation project in Thailand. Agricultural Water Management, 33(1):43-62.
Irrigation management ; Irrigation programs ; Groundwater irrigation ; Planning ; Optimization ; Mathematical models ; Cropping systems ; Irrigation requirements ; Water requirements ; Water allocation ; Decision making ; Water deficit ; Crop yield ; Rice ; Soyabeans / Thailand / Sukhothai Groundwater Development Project
(Location: IWMI-HQ Call no: PER Record No: H020733)
https://vlibrary.iwmi.org/pdf/H020733.pdf
(1.24 MB)

10 Misra, D.; Das Gupta, A.. 1996. Irrigation management in an Indian river catchment. In Camp, C. R.; Sadler, E. J.; Yoder, R. E. (Eds.), Evapotranspiration and irrigation scheduling: Proceedings of the International Conference, November 3-6, 1996, San Antonio Convention Center, San Antonio, Texas. St. Joseph, MI, USA: ASAE. pp.394-401.
Irrigation management ; Catchment areas ; Water allocation ; Surface water ; Groundwater ; Optimization ; Conjunctive use ; Mathematical models ; Linear programming ; Decision support tools / India / Orissa / Mahanadi / Kathjori-Devi
(Location: IWMI-HQ Call no: 631.7.1 G000 CAM Record No: H020608)

11 Van Duc, L.; Phien, H. N.; Das Gupta, A.. 1999. Integrated water resources planning and management model for the Lower Dong Nai River Basin. Water Resources Journal, 202:9-23.
River basin development ; Water resource management ; Planning ; Models ; Reservoir storage ; Reservoir operation ; Operating policies ; Water distribution ; Water allocation ; Hydroelectric schemes ; Constraints ; Salinity ; Sensitivity analysis ; Groundwater ; Investment / Vietnam / Lower Dong Nai River / Dau Tieng Reservoir / Sai Gon River / Vam Co River
(Location: IWMI HQ Call no: PER Record No: H025992)

12 Das Gupta, A.; Huu-Thoi, N. 2000. A modeling system for water resources allocation in a large river basin. In Al-Soufi, R. W. (Ed.), Proceedings of the Workshop on Hydrologic and Environmental Modelling in the Mekong Basin, 11-12 September 2000, Phnom Penh. Phnom Penh, Cambodia: Mekong River Commission. Technical Support Division. pp.193-203.
River basins ; Water allocation ; Water use ; Surface water ; Groundwater ; Simulation models ; Water quality / South East Asia / Mekong River Basin
(Location: IWMI-HQ Call no: 551.48 G800 ALS Record No: H027286)

13 Larsen, H.; Mark, O.; Jha, M. K.; Das Gupta, A.. 2000. The application of models in integrated river basin management. In Al-Soufi, R. W. (Ed.), Proceedings of the Workshop on Hydrologic and Environmental Modelling in the Mekong Basin, 11-12 September 2000, Phnom Penh. Phnom Penh, Cambodia: Mekong River Commission. Technical Support Division. pp.215-224.
River basins ; Water resource management ; Hydrology ; Simulation models / Thailand / Mun River
(Location: IWMI-HQ Call no: 551.48 G800 ALS Record No: H027288)

14 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)

15 Huu-Thoi, N.; Das Gupta, A.. 2001. Assessment of water resources and salinity intrusion in the Mekong delta. Water International, 26(1):86-95.
River basins ; Salt water intrusion ; Assessment ; Flood water ; Simulation models ; Estuaries ; Groundwater / South East Asia / Vietnam / Mekong Delta
(Location: IWMI-HQ Call no: PER Record No: H028513)

16 Ines, A. V. M.; Droogers, P.; Makin, I. W.; Das Gupta, A.. 2002. Crop growth and soil water balance modeling to explore water management options. Colombo, Sri Lanka: International Water Management Institute (IWMI) 26p. (IWMI Working Paper 022) [doi: https://doi.org/10.3910/2009.166]
Water management ; Decision support systems ; Performance evaluation ; Evapotranspiration ; Crop yield ; Crop growth ; Simulation models ; Water balance ; Optimization ; Flow ; Water stress ; Soil moisture
(Location: IWMI-HQ Call no: IWMI 631.7.1 G000 INE Record No: H029557)
http://www.iwmi.cgiar.org/Publications/Working_Papers/working/WOR22.pdf
(772 KB)
The study was on the performance of the decision support system for agrotechnology transfer (DSSAT) and the soil water atmosphere plant (SWAP) under an acid sulphate soil. The comparison of these models was done as a prerequisite to the selection of an appropriate model, which is capable of simulating water management scenarios, water balance and crop growth, to be coupled with an adaptive optimization algorithm that can be used to explore water management options

17 Ranjan, P.; Das Gupta, A.; Droogers, P. 2002? Evaluating the groundwater vulnerability case study: Walawe Basin, Sri Lanka. Unpublished report. 26p.
Groundwater depletion ; Aquifers ; Soil properties ; Land use ; Case studies / Sri Lanka / Walawe Basin
(Location: IWMI-HQ Call no: P 6251 Record No: H031402)
https://vlibrary.iwmi.org/pdf/H031402.pdf
(1.31 MB)

18 Jha, M. K.; Das Gupta, A.. 2003. Application of mike basin for water management strategies in a watershed. Water International, 28(1):27-35.
Water resource management ; River basins ; Simulation models ; Water allocation / Thailand / Mike Basin
(Location: IWMI-HQ Call no: PER Record No: H032083)

19 Mainuddin, M. A.; Das Gupta, A.; Loof, R. 2003. Irrigation water delivery performance under parameters' uncertainty. Journal of Applied Irrigation Science, 38(2):211-233.
Irrigation water ; Water delivery ; Performance evaluation
(Location: IWMI-HQ Call no: PER Record No: H031437)

20 Trung, T. C.; Das Gupta, A.; Babel, M. S.; Clemente, R. 2005. Assessment of different irrigation management models in Vietnam. International Journal of Water Resources Development, 21(3):525-535.
Irrigation management ; Models ; Irrigation programs ; Financing ; Water distribution ; Conflict ; Decision making ; Farmers’ associations / Vietnam
(Location: IWMI-HQ Call no: PER Record No: H037292)

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