How does the temperature of the ocean change with depth?

The temperature of the ocean typically decreases with depth due to a phenomenon known as thermocline. The surface of the ocean is warmed by the sun, but this heat is not evenly distributed throughout the water column. The top layer, called the mixed layer, experiences the most significant temperature changes, while deeper layers are generally cooler and more stable. The rate of temperature decrease varies depending on factors such as location, season, and ocean currents.