Which process limits nutrient transport rates in stratified subtropical gyres containing a strong thermocline?

💡 Explanation

When a subtropical gyre develops a strong thermocline, Ekman spiral-driven downwelling occurs because wind stress creates a surface current that spirals downward due to the Coriolis effect, further suppressing nutrient mixing from depth. Therefore, Ekman downwelling limits the nutrient rate, rather than convection, Langmuir circulation, or tidal shear, which promote vertical mixing under different conditions.

• Which effect results when an El Niño event suppresses upwelling along the Peruvian coast?
• Which process drives the thermohaline circulation when surface water become denser?
• Which outcome results when increased trade winds strengthen coastal upwelling along western South America?
• Which pattern results when the Coriolis effect deflects prevailing winds in the Northern Hemisphere?
• Which climatic effect results when volcanic aerosols drastically increase Earth's albedo?
• Which outcome is driven by solifluction within permafrost regions?