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Estimation on the Regions of Freshwater Influence using the Seasonal Salinity Data in Asan Bay Coastal Zone  

Cho, Hong-Yeon (Coastal Development Research Department, KORDI)
Cho, Beom-Jun (Coastal Development Research Department, KORDI)
Kim, Sang-Jun (Civil and Environmental Engineering, Kyungwon Univ.)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.20, no.2, 2008 , pp. 219-231 More about this Journal
Abstract
This study analyzes a general pattern of the gate operation at the Asan bay seadikes and its effects on salinity. The coefficient of determination between precipitation and released freshwater from gate operation turns out to be 0.77-0.89. A stratification is not shown in the analysis of the salinity in upper and lower layers at the Asan bay because of strong tidal effects, and the coefficient of determination between runoff and salinity is in the range of 0.49-0.62 except station Daesan 4. Salinity observations from 8 stations show mean and standard deviation are highly correlated (coefficient of determination=0.9936), and both mean and standard deviation are influenced by freshwater. Eventually it is found that stations Asan 2 to 4 and Daesan 1 are within the regions of the freshwater influences.
Keywords
regions of freshwater influence; diffusion range; quantitative definition; salinity; freshwater discharge; Asan bay;
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