Auditory tube
The auditory tube which used to be called the Eustacean tube.
The Eustachian tube is responsible for equalizing pressure in the middle ear when changing elevation, such as during changes in altitude or diving. Its role is to allow air to flow in and out of the middle ear, preventing discomfort or damage to the ear drum.
The actual atmosphere itself does not change with elevation, but the atmospheric pressure does.
Pressure drops as you go up.
change in elevation and change in density
The relationship between water pressure and elevation is that as elevation increases, water pressure decreases. This is because the weight of the water above exerts less force at higher elevations. The change in water pressure per foot of elevation is approximately 0.433 pounds per square inch (psi) for every foot of elevation gained.
the air pressure changes based on elevation
Your elevation above sea level or the weather passing over you.
An aneroid barometer measures air pressure using a flexible metal chamber that expands or contracts based on changes in air pressure. As elevation increases, the air pressure decreases, causing the metal chamber to expand. By calibrating the device, the change in chamber size can be used to estimate the change in elevation.
At a greater depth, the weight of all the liquid (or gas) above adds to the pressure.
The higher the elevation the lower the pressure.The lower the elevation the higher the pressure.The change can be expressesd by the formula:p = 101325 (1 - 2.25577 10-5 h)5.25588wherep = air pressure (Pa)h = altitude above sea level (m)
The change in elevation from the base of the mountain to the top is known as the mountain's elevation gain. It is calculated by subtracting the base elevation from the summit elevation.
Pressure drops at higher elevations because of the decrease in the weight of air. Under the water, pressure climbs with increasing depth because of the combined weight of the water and that of the atmosphere.