Which hydrographic consequence relating to the California Current commonly arises during El Niño events?

💡 Explanation

During El Niño, weakened trade winds cause a reduction in upwelling along the California coast, resulting in depressed thermocline because warm surface waters accumulate, suppressing nutrient availability. Therefore depressed thermocline occurs, rather than increased upwelling, strengthen flow, or deep water production, which require opposite conditions.

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