Abstract : I am interested in the general problems of internal waves and the ocean mixing. Knowledge of these is important for advancing the performance of operational and climate models, as well as for understanding local problems such as pollutant dispersal and biological productivity. In the specific case of this DRI s focus, nonlinear internal waves (NLIW), the waves' currents and displacements are strong enough to impact Navy operations such as diving, ROV operation and mine detection/removal. To understand the generation mechanisms, and predict the arrival times, of large NLIW in the northeastern South China Sea (SCS). To observe NLIW packets and estimate their energy and energy flux in the 2007 South China Sea experiment. To relate these to the energy and energy-flux in the low-mode tide, and to measurements of overturn-inferred turbulence.