Which risk increases when surface winds weaken over the North Pacific subtropical gyre?

💡 Explanation

When surface winds weaken, Ekman transport diminishes because wind stress decreases, reducing downwelling's intensity in the gyre's center and subsequently leading to the thermocline deepening and nutrient stratification. Therefore, nutrient depletion increases, rather than upwelling, less plastic, or coastal erosion which require different atmospheric or oceanic forcing mechanisms.

• Which process initiates enhanced glacial erosion and cirque formation in arctic mountains subject to freeze-thaw cycles?
• Which mechanism dominates the change in morphology as a proglacial lake fills with sediment?
• Which surface change develops because localized airflow consistently removes fine sediment?
• Which phenomenon amplifies seismic wave energy emanating upward through unconsolidated sediments?
• Which large-scale consequence directly results from the adiabatic cooling effect within rising air masses?
• Which feedback on coastal ecosystems results when large gyres stagnate?