Jobs in physical oceanography focus on studying the movement and flow of the oceans for various purposes. In this role, you may dive underwater to collect information, process data to help create simulations and computer models, and help apply those results. The oceans constantly change, so this job also includes understanding and predicting these differences to understand how they may affect future activities. Physical oceanography jobs fall into several categories, including environmental research, climate change research, and supporting preservation efforts. Some people in this field specialize in specific areas, such as polar oceanography or circulation and climate.