<p><strong>Fig. 9.18.</strong> The thermocline is a vertical zone of rapidly decreasing ocean temperature with depth. It is particularly pronounced in the tropics. In this figure the thermocline is at 200 m deep.</p>

Fig. 9.18. The thermocline is a vertical zone of rapidly decreasing ocean temperature with depth. It is particularly pronounced in the tropics. In this figure the thermocline is at 200 m deep.

Image by Byron Inouye