Which phenomenon causes significantly cooler surface water temperatures during coastal upwelling events?

💡 Explanation

When upwelling occurs, deep, cold water rises because density gradients are disrupted, carrying dissolved nutrients. The latent heat absorption by evaporation causes surface water to cool as the cold water evaporates, absorbing heat. Therefore, lower temps result rather than adiabatic expansion, kinetic dissipation or albedo increase, which have different mechanisms.

• Which atmospheric effect causes the Somali Current along East Africa to reverse direction seasonally?
• Which mechanism causes shallow intra-plate earthquakes adjacent to transform boundaries?
• Which mechanism causes increased marine productivity when deep ocean water rises to the surface?
• Which mechanism primarily sculpts ventifacts in periglacial environments?
• Which type of seismic hazard risk increases following triggered creeping fault behavior?
• Which outcome accelerates when saturated soil exceeds its shear strength on moderate arctic slopes?