Pressure is directly proportional to depth. The equation used is for hydrostatic pressure:
P = Po + dh
Where P = pressure, Po = initial pressure at surface, d = density of the fluid, and h = height to the free surface (or depth). In diving, Po is usually the atmospheric pressure. This is the only thing that elevation affects, as sea level air pressure is higher than the air pressure at higher elevations.
The density of sea water is generally accepted as 64 lbs/cu ft. There is variation, but usually not enough to be meaningful, unless you are diving in a very high salinity location, like the Dead Sea, in which the salt content is so high that the density is considerably higher.
For most purposes, atmospheric pressure at sea level is accepted to be 14.7 lbs/sq in (14.7 psi), or 2116.8 lbs/sq ft (2116.8 psf). Diving in sea water then, the equation becomes:
P = 2116.8 lbs/sq ft + 64 lbs/cu ft x h.
Then, at the surface, h = 0, and P = 2116.8 psf = 14.7 psi. At h = 10 ft, P = 2116.8 + 64 x 10 = 2756.8 psf = 19.1 psi. At h = 33 ft, P = 4228.8 psf = 29.4 psi. At h = 100 ft, P = 8516.8 PS = 59.1 psi. And so on. The general rule-of-thumb for sport/recreational diving is that the pressure increases by 14.7 psi (1 atmosphere) for every 33 ft of depth. So that at 100 ft, the pressure is 58.8 psi (4 atmospheres). (Remember that you start at the surface at 1 atmosphere.)
Yes, pressure varries with depth or elevation.
Yes. Either way. If you ascend or descend through the atmosphere,
the atmospheric pressure changes in the opposite direction.
Yes, pressure varies with depth or elevation. You must acount for this while diving in oceans and also in flying small aircraft. It's very important to set pressure on your altimeter.
Like on earth, atmosphere pressure is higher where elevation is lowest. The depth of Valleys and Impact craters, with depth of up 8000 meters, have the thickest atmosphere.
The primary change is of pressure, increasing at 1 Bar per 10 metres of depth; but in the oceans, the temperature and salinity also alter in subtle ways.
Auditory tubeThe auditory tube which used to be called the Eustacean tube.
No, a clinometer is not used to measure the depth of something. It is used to measure the angles of incline, slope, and elevation but not the actual depth.
pressure of liquid on bottom=density*gravitational force*depth :)
At a greater depth, the weight of all the liquid (or gas) above adds to the pressure.
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.
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
Like on earth, atmosphere pressure is higher where elevation is lowest. The depth of Valleys and Impact craters, with depth of up 8000 meters, have the thickest atmosphere.
Both temperature and pressure increase with depth.
the air pressure changes based on elevation
the cat in the fiddle
The primary change is of pressure, increasing at 1 Bar per 10 metres of depth; but in the oceans, the temperature and salinity also alter in subtle ways.
Yes!!! The altitude and depth cause the fuid to change.
Your elevation above sea level or the weather passing over you.