neritic zone
A rapid change in density with depth in the ocean is called a thermocline.
A rapid change in temperature with depth in the ocean is called thermocline. A rapid change in density with depth in the ocean is called the pynocline.Thermocline
Thermocline
the pelagic zone
A rapid change in ocean density with depth is called a thermocline. This thermocline is caused by variations in temperature and can impact ocean circulation and marine life distribution.
The open ocean of any depth is called the pelagic zone. This zone encompasses all the water in the ocean that is not near the shore or the ocean floor. Within the pelagic zone, there are different regions based on depth and light penetration, such as the epipelagic, mesopelagic, bathypelagic, and abyssopelagic zones.
Scientists use sound waves to measure the depth of the ocean through a method called sonar. By sending sound pulses from a ship to the ocean floor and measuring the time it takes for the sound waves to bounce back, scientists can calculate the depth of the ocean at that location.
halocline
A device called a echo sounder or sonar is used to measure the depth of the ocean using sound waves. Sound waves are emitted from the instrument and the time taken for the sound waves to bounce back from the ocean floor is used to calculate the depth.
That technique is called sonar.
The average depth of the ocean is about 2.5 miles.
The average depth of the Indian ocean is I dont know honestly