Abstract:

The Luzon Strait is one of the most powerful sources of internal tides among the world’s oceans. The internal tides from Luzon Strait can propagate over 1500 km in the South China Sea and over 2500 km in the western Pacific. The long-range radiation process can redistribute and dissipate the baroclinic energy over a broad area and account for the inhomogeneous geography of diapycnal mixing, which is of vital importance to the modulation of the meridional overturning circulation.

This talk will introduce our recent researches on internal tide variability and energetics in the northwestern Pacific, including the South China Sea, the Philippine sea and northeast of Taiwan. The complex topography features play a key role in the internal tide energetics. The Kuroshio largely modulate the energy radiation and dissipation processes. The diurnal and semidiurnal internal tides demonstrate different features in generation, propagation and dissipation processes. Both mode-1 and mode-2 internal tides have a long radiation path but are accompanied by complex geography variations. Multisource interference contributes significantly to the inhomogeneous geography of the energy flux and dissipation field in the Philippine Sea.

All Are Welcome!

(Host faculty: Prof. Jianping GAN)