Tidal Exchange Variation On Pier Bridge Between Busan New-port And Nakdong Estuary, Korea

This study analyzes the characteristics of tidal exchange between Nakdong estuary and Busan New-port. Therefore Compact-EM current meter was established on a connecting pier bridge and current velocity was analyzed for flow direction. Observation of tide and C.T.D(Conductivity Temperature Depth) was also analyzed to determine the characteristics of sea water and described the tidal exchange between Nakdong estuary and Busan New-port. For the purpose of indicating characteristics of tidal exchange numerical modelling was used. From the results of measuring the component of current velocity on the connecting pier bridge, it was determined that the dominant outflow direction in ebb tidal current was from the Nakdong estuary to Busan New-port. However, in flood tidal current the dominant direction was from the Busan New-port to the Nakdong estuary. Sum of volume transport of sea water calculations revealed (+)8.076 × 10{6} m{3} on the connecting pier bridge. It showed the volume transport of sea water to be more from Busan New-port to Nakdong estuary than in going the other direction.