Which type of current flow moves in a circular path around a subtropical convergence, reflecting Ekman transport, gravity, and the Coriolis effect?
A)counter-current circulation
B)density-driven circulation
C)geostrophic circulation
D)Langmuir circulation
E)thermohaline circulation

Question

Quizplus · Accepted Answer

This type of current flow is known as geostrophic circulation, which occurs due to the balance between the Coriolis effect and pressure gradient force. In a subtropical convergence zone, the converging winds cause water to pile up and create a high-pressure zone, which in turn creates a pressure gradient force that drives the water to circulate in a circular path around the convergence zone. The Coriolis effect causes the water to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere, resulting in a circular path. Ekman transport and gravity also play a role in this circulation pattern.

Which Type of Current Flow Moves in a Circular Path