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Development of Open Water Management Program for the Optimal Water Management of Irrigation Reservoir

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  032147,  2003 ASAE Annual Meeting . (doi: 10.13031/2013.14016) @2003
Authors:   Sun Joo KIM, Phil Shik KIM
Keywords:   Water management automation system, Open Water Management Program (OWMP), Optimal water management, Water requirement, Runoff, Irrigation reservoir

Development of automation system is of great importance for effective water management. Automation system in the water management, however, has mostly been developed as a closed structure, which cannot support additional expansion of the system. It requires open architecture in order to flexibly meet the standard rural water management system. In this study, we developed Open Water Management Program (OWMP) with an open architecture to deal with newly arising upgrade problems for a water management automation system. When we executed OWMP with data produced from an experimental field in Korea, consumptive water was calculated 886.3mm; effective rainfall 566.0mm; and amount of irrigation water 313.7mm against total rainfall (840.1mm). The relative errors of this simulation were less than 5%. We developed runoff calculation model and verified it with measured data of 4 basins included in International Hydrological Program (IHP). The relative errors came out less than 5% in all basins, except for one basin. We also applied OWMP to a large irrigation reservoir in Korea to simulate daily storage from 1998 to 2001, and the mean relative error between measured and simulated value was 2.6%. Our results based on the magnitude of relative errors of the model simulation indicate that the OWMP can be a tool nicely adapted to the optimal water management of irrigation reservoir for saving water and that it gives potential applicability to other basins.

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