Author(s): M. O. Lee; B. K. Kim; J. S. Lee; J. K. Kim
Linked Author(s): Jong-Sup Lee
Keywords: No Keywords
Abstract: As one of the measures to prevent loss of sand from Haeundae Beach, the tidal currents were observed throughout all four seasons in 2007. Ebb flows were stronger in winter and summer whereas flood flows were stronger in summer and autumn. However, tidal current directions remained almost constant without a large seasonal variation. Throughout the season, the semi-diurnal component M_2 was strongest whereas the semi-diurnal component S_2 was weakest, even at diurnal tides K_1 and O_1. The velocities of wind-driven currents were estimated to be 2.4 to 3.7cm·s-1at the surface layer and the influential depth of the wind was estimated to be 8.3 to11.5m, indicating that the wind affected at least down to the middle layer of the entire depth. The harmonic analysis results suggested that the surface tidal residual currents were influenced by the wind. The correlation analysis results showed a significant relation between the wind and the residual currents, although with a low relevancy.
Year: 2009