Breathing
Yes, gauge pressure includes atmospheric pressure. Gauge pressure is the pressure measured above atmospheric pressure, so it accounts for the atmospheric pressure as a reference point.
Gauge pressure is the pressure measured relative to atmospheric pressure, while atmospheric pressure is the pressure exerted by the Earth's atmosphere on a surface. Gauge pressure accounts for atmospheric pressure, while atmospheric pressure is the total pressure exerted by the atmosphere.
Atmospheric pressure
The atmospheric pressure on Earth is primarily caused by the weight of the air above us. Gravity pulls the air downward, creating pressure at the Earth's surface. The mass and density of the air also play a role in determining atmospheric pressure.
Total pressure is equal to the sum of gauge pressure and atmospheric pressure. Atmospheric pressure is always present and contributes to the total pressure measurement.
No, atmospheric pressure decreases with altitude.
Gage pressure is the pressure measured relative to atmospheric pressure, while absolute pressure is the total pressure including atmospheric pressure. Gage pressure only considers the pressure above atmospheric pressure, while absolute pressure includes atmospheric pressure as well. This affects pressure measurements in a system because gage pressure readings will fluctuate with changes in atmospheric pressure, while absolute pressure readings will remain constant regardless of atmospheric pressure changes.
You must add the atmospheric pressure.
the atmospheric pressure below sea level is highter (novanet)
No, it is the DIFFERENCE between the true and atmospheric pressures.
abosulute pressure includes the atmospheric pressure while gage pressure gives the pressure above atmospheric pressure
The atmospheric pressure is greatest at sea level, which is at the Earth's surface. As altitude increases, atmospheric pressure decreases.