Define halocline and thermocline layer

Haloclines:
i. Haloclines are a type of chemocline, which means that the chemical makeup of the cline is what makes it different from the surrounding water. Specifically, a halocline has a different level of salinity than the rest of the body of water.
ii. Usually the halocline is the layer that has a much higher level of salinity than the layers above and below it. This high level of salinity also makes the layer denser.
iii. Haloclines are found in many areas around the world. They are common in the oceans, especially in colder regions, where cold water with a lower salinity ‘floats’ on top of the saltier, warmer layer. These layers are also common in areas where freshwater and saltwater come together.
Thermoclines:
i. Thermoclines are layers in which the temperature of the water changes at a much faster rate than in the surrounding water.
ii. The thermocline forms where the warm and cold layers slowly mix. As the sun sets or rises, the top layer heats and cools, causing the mixed layer to rapidly change in temperature.Thermoclines occur due to a variety of reasons, including seasonal changes, currents and weather.