Which mechanism intensifies coastal upwelling when alongshore winds align parallel to continental margins near a gyre’s eastern boundary?

💡 Explanation

When alongshore winds align with eastern boundary gyres, Ekman transport laterally deflects surface water offshore because of Coriolis effect, leading to upward movement of nutrient-rich bottom waters along the coast. Therefore, upwelling intensifies due to offshore surface flow, rather than other options involving pressure, geostrophy or thermohaline circulation.

• Which geophysical consequence results when permafrost thaws under a sloped terrain?
• Which land deformation results where groundwater extraction accelerates?
• Which mechanism causes thermal stratification in slow-moving streams during summer months?
• Which outcome results when a delta experiences overloaded sediment deposition?
• Which effect intensifies coastal erosion during an El Niño event on the western coast of South America?
• Which hydrological outcome is accelerated when overlying soil collapses into a sinkhole?