• Proceedings of the Korea Water Resources Association Conference
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• 2005.09b
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• pp.1445-1446
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• 2005

• Proceedings of the Korea Water Resources Association Conference
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• 2005.09b
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• pp.1168-1169
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• 2005

• Proceedings of the Korea Water Resources Association Conference
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• 1986.07a
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• pp.43-49
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• 1986

• Proceedings of the Korea Water Resources Association Conference
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• 2001.05b
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• pp.883-888
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• 2001

• Water for future
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• v.43 no.6
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• pp.22-27
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• 2010

• Proceedings of the Korea Water Resources Association Conference
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• 1999.05a
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• pp.535-540
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• 1999

• Proceedings of the Korea Water Resources Association Conference
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• 2002.05b
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• pp.946-951
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• 2002

• Proceedings of the Korea Water Resources Association Conference
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• 2000.05a
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• pp.553-558
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• 2000

• Journal of The Korean Society of Agricultural Engineers
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• v.49 no.3
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• pp.3-10
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• 2007

In general method to estimate the water supplies in the large-scale basin, indirect estimation method such as unit loading factor method has been used. However, the estimated water supplies are much different to the real water supplies used in the any basin because these general methods estimate them considering water supply demands only. Especially, water supplies for irrigation are big different to the real water supplies in which the water supplies for irrigation are depend on the weather conditions such as evaporation, basin conditions such as infiltration, the reservoir operation rule for irrigation water, and distribution methods. Thus, a new estimation method is developed to estimate the real water demands which is essential factors for the effective water resources operation in the basin. This method is for estimating the water supplies and return rates based on the survey of the irrigation reservoirs and the analysis of effects to the stream flows, return flows, and water supplies for irrigation which water supplies and return rates are used in the basin water management model. The water supply usages in each subbasin are validated by comparisons between the simulated discharges from the basin water management model and the discharges measured in the control points.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.35 no.6
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• pp.1237-1246
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• 2015

A novel technique was proposed to calculate fluxes accurately by separation of flow area into a part of step face which is dominated by flow resistance of it and an upper part which is relatively less affected by the step face in analyzing shallow-water flows over discontinuous topography. This technique gives fairly good agreement with exact solutions, 3D simulations, and experimental results. It has been possible to directly analyze shallow-water flows over discontinuous topography by the technique developed in this study. It is expected to apply the developed technique to accurate evaluation of overflows over weirs or retaining walls (riverside roads) and areas flooded by the inundation in the city covered in discontinuous topography.