2000 Volume 44 Pages 1251-1256
This paper is associated with the computer simulation and the field observations of salinity to analyze the freshening process in the Yongam lake, which is a standard freshening reservoir. The freshening process was predicted by salinity equivalent model based on three kinds of hydraulic mechanisms comprising the convection, the vertical diffusion and the mixing of salinity. The model was applied to the conditions of two different times, which were decided by the introducing time of desalt fresh water and the operation of desalinization facilities. As the results, the observed salinity was greatly reduced with the lapse of time and varied according to the season, river discharge, and tidal phenomena. The spring layer of salinity related to hydraulic stability was found 15-16meters below the water surface. In the desalinization process, the computed salinity was 1, 000-1, 700ppm and 2, 000-4, 000ppm separately, in case of the introduction and without of desalt fresh water.
