동해에서 북위 38-40선을 가로 지르는 북향 열과 물질수송

Abstract

By combining velocity estimates at 700m levels from ARGO data, and geostrophic calculation from a CTD section made across the East Sea between 38-40ON in 1999, we were able to obtain a section of absolute zonal velocity. In general barotropic components are dominant especially below the thermocline, since the vertical stratification is very low. The velocity section reflects the meander of the flow along the polar front well. The total volume and heat transports through the section are 1.6 Sv., and 0.15PW respectively. These numbers are smaller than those estimated at the Korea Strait by 30 to 40%, because the CTD section does not capture the strong and narrow currents along the Korean and Japanese coasts. A meridional overturning stream function estimated from the velocity section shows that there exists a meridional overturning circulation of about 1 Sv. below the thermocline