Which mechanism causes the cooling effect in coastal upwelling zones when winds drive surface water offshore?

💡 Explanation

When winds drive surface water offshore, upwelling brings colder water from the deep ocean to the surface; evaporation occurs because latent heat is absorbed, cooling the surface. Therefore, latent heat absorption causes surface cooling, rather than conduction, advection, or radiation, which are subordinate effects in upwelling.

• Which mechanism causes smaller delta channel formation in a levee-confined alluvial plain during downstream sediment deposition?
• Which mechanism causes increased stream meandering downstream when floodplain gradient decreases?
• Which outcome results when subsidence occurs unevenly beneath a levee during a prolonged drought?
• Which mechanism explains shield volcano formation associated with mantle plumes?
• Which atmospheric effect causes the formation of distinct desert regions around 30 degrees latitude?
• Which process primarily causes the formation of thermocline layers observed in deep freshwater lakes during summer stratification?