Which phenomenon disrupts coastal upwelling when intensified ocean gyre circulation creates strong downward Ekman transport?

💡 Explanation

When gyre circulation intensifies, Ekman transport moves surface water downward, suppressing upwelling because the vertical movement of nutrient-rich deep water is inhibited. Therefore, reduced nutrient availability results, rather than coastal erosion, oxygen minimum zone, or temperature changes—which are influenced by other processes.

• Which outcome occurs where persistent, high winds encounter unconsolidated sediments?
• Which risk increases following rapid glacial isostatic rebound?
• Which process governs the formation of fining-upward alluvial successions in sedimentary basins?
• Which process causes the formation of a volcanic arc when oceanic lithosphere subducts beneath continental lithosphere?
• Which mechanism causes the formation of a graben lake when extensional forces act upon the crust?
• Which phenomenon causes deflection of ocean currents away from wind directions, induced by Ekman transport?