Which process primarily drives thermohaline circulation in the ocean during winter?

💡 Explanation

When surface water cools in winter, its density increases because cold water molecules pack more closely, causing dense water to sink and drive thermohaline circulation. Therefore increased density is the primary driver, rather than solar radiation, reduced wind, or coastal upwelling which require different drivers related to insolation heating, momentum transfer, or bathymetry.

• Which outcome occurs when wind exceeds threshold velocity?
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• Reduced river sediment load increases which effect via karst?
• Which process controls the morphology of braided streams carrying significant alluvial sediment loads?
• Which soil horizon development increases rapidly when physical weathering intensifies?