Which mechanism causes surface-level convergence of water in the center of ocean gyres?

💡 Explanation

When wind stress acts on the ocean surface, Ekman transport occurs because surface water moves at an angle to the wind, resulting in net water movement converging centrally within gyres. Therefore the centre of gyres experiences convergence through Ekman transport, rather than density differences, earth's rotation or salinity differences.

• Which process accelerates mineral weathering as a result of alpine permafrost thaw?
• Which geophysical event is most likely to occur along coastlines as permafrost thaws due to rising global temperatures?
• Which outcome accelerates stalactite formation when airflow changes?
• Which hazard increases when upstream levee construction alters river sediment deposition patterns?
• Which risk increases when an earthquake occurs near fine-grained unconsolidated sediment deposits?
• Which mechanism maintains lake level stability despite seasonal inflow variation within glacial lakes formed by isostatic rebound?