What is an "eddie" in oceanography?

Prepare for the ATSC Weather for Sailing, Flying and Snow Sports exam. Utilize flashcards and multiple choice questions, each detailed with hints and explanations. Set sail with confidence and knowledge!

An "eddie" in oceanography refers to a circular movement of water that can significantly affect currents within a body of water. Eddies are often created by the interaction of water with obstacles, such as landforms or other currents, causing the water to swirl in a circular pattern. This movement can impact marine ecosystems by influencing the distribution of nutrients and organisms, as well as playing a role in larger oceanic current systems. Eddies can vary in size and strength, and they are an important feature in ocean dynamics because they can transport water and heat over large distances.

In the context of the other choices, a sudden wave formation in deep water refers to a phenomenon that is not specifically related to the definition of an eddie, which deals more with the continuous swirling motion rather than a sudden event. Underwater topography refers to the shape and features of the ocean floor, which does not directly encompass the behaviors associated with an eddy. Lastly, a weather phenomenon causing storms pertains to atmospheric conditions rather than oceanic movements, highlighting the distinction between meteorological and oceanographic terms. Thus, the correct understanding of an eddie focuses on its role in current movement within oceanographic studies.

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