These terms are the condition for which that code number is to be used. The terms may be synonyms of the code title, or, in the case of other specified codes, the terms are a list of the various conditions assigned to that code.
Physical oceanography, or marine physics, studies the ocean's physical attributes including temperature-salinity structure, mixing, surface waves, internal waves, surface tides, internal tides, and currents.
The study of oceanography is divided into these four branches: 1  Biological oceanography, or marine biology, investigates the ecology of marine organisms in the context of the physical, chemical, and geological characteristics of their ocean environment and the biology of individual marine organisms.