Research in physical oceanography attacks some of the most challenging problems in classical physics and fluid dynamics. It is at a stage of rapid evolution (building upon vastly improved observing tools, increased computing power, and new analytical understanding). Major cooperative research efforts are dramatically changing our understanding of the dynamics of the ocean and atmosphere-ocean coupling. The results of these studies will contribute to solving a yet broader range of oceanic, geological, chemical, biological, engineering, and societal problems. The scope of our interests is global.