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← GeographyWhich mechanism influences surface water temperature variability within subtropical gyres?
A)Wind-driven Ekman transport✓
B)Tidal amplitude modulation
C)Geothermal vent convection
D)Salinity-driven density stratification
💡 Explanation
When winds circulate around high-pressure centers, Ekman transport causes surface water convergence, with the mechanism being the Coriolis effect deflecting water flow at an angle to the wind, thus influencing temperature distribution. Therefore, wind-driven Ekman transport is the primary influence rather than tides, vents, or salinity.
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