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.
An ocean is a large expanse of salt water that covers three-quarters of the earthâs surface. It is bounded by the continents, or the equator, and other imaginary lines. The Earthâs seven main oceans are; the Arctic, North Atlantic, South Atlantic, North Pacific, South Pacific, Indian and Antarctic Oceans. These seven main oceans comprise the âworld oceanâ. Sea on the other hand, is a body of salt water that is surrounded by land on all or most sides, or that is part of one of the oceans.