Which phenomenon increases due to the Ekman transport effect on coastal upwelling regions during offshore winds?

💡 Explanation

When offshore winds initiate Ekman transport, surface water is moved away from the coast because of the Coriolis effect, resulting in upwelling of nutrient-rich deep water to replace it. Therefore, deep-water nutrient concentrations significantly increase, rather than any surface water reduction, turbidity or stabilization, which involve different wind-driven mechanisms.

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