Motions
of air in the atmosphere, in the form of wind, create a stress on the
surface of the ocean, which in turn, provides for the transfer of momentum
to the water below!
Stress is defined as force
per unit area and in measured in units of dynes/centimeter2
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The red arrows in
the diagram below indicate very strong winds, creating stresses
greater than 1 dynes/cm2 . (cm = centimeter; 2.54 cm
= 1 inch)
-
Also note how the wind directions form
circular paths around high pressure systems, as the wind blows
away from the high pressure it is deflected due to the Coriolis
effect.