Oceanography: Introduction

The physical and chemical characteristics of ocean waters are discussed including salinity, temperature, density, and pressure. Footage from Maine, the Canadian Maritimes, and the Pacific coast highlight dynamic characteristics of the oceans. The geography of the oceans and features of the ocean floor are also explored. Other terminology includes: sea, oxygen, nitrogen, gills, thermocline, swell, surf, undertow, tsunami, continental shelf, abyssal plain, and trench.