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http://dx.doi.org/10.12652/Ksce.2010.30.5D.533

The Comparative Analysis of Reservoir Capacity of Chungju Dam based on Multi Dimensional Spatial Information  

Lee, Geun Sang (전주비전대학 지적부동산과)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.30, no.5D, 2010 , pp. 533-540 More about this Journal
Abstract
Dam is very important facility in water supply and flood control. Therefore study needs to analyze reservoir capacity accurately to manage Dam efficiently. This study compared time series reservoir capacity using multi-dimensional spatial information to Chungju Dam reservoir and major conclusions are as follows. First, LiDAR and multi beam echo sounder survey were carried out in land zone and water zone of Dam reservoir area. And calibration process was performed to enhance the accuracy of survey data and it could be constructed that multi dimensional spatial information which was clearly satisfied with the standard of tolerance error by validation with ground control points. Reservoir capacity by water level was calculated using triangle irregular network from detailed topographic data that was constructed by linked with airborne LiDAR and multi beam echo sounder data, and curve equation of reservoir capacity was developed through regression analysis in 2008. In the comparison of the reservoir capacity of 2008 with those of 1986 and 1996, the higher water level goes, total reservoir capacity of 2008 showed decrease because of the increase of sediment in reservoir. Also, erosion and sediment area could be analyzed through calculating the reservoir capacity by the range of water level. Especially the range of water level as 130.0~135.0 which is the upper part of average water level, showed the highest erosion characteristics during 1986~2008 and 1996~2008 and it is considered that the erosion of reservoir slant by heavy rainfall is major reason.
Keywords
multi dimensional spatial information; reservoir capacity; LiDAR; MBES; sediment;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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