atmospheric pressure at Mean sea level is taken as 760 mmHg. The pressure changes if the altitude of the place is above mean sea level. If the altitude above mean sea level is increased, the atmospheric pressure decreases and vice versa.
The calculation can be done to calculate the sea level at different altitude from mean sea level.
Example calculation:
Altitude above sea level = Al = 232 m
Ambient temperature = AT= 35 degree C
Elevation factor = Ef
Site atmospheric pressure at 0 degree C= PZero
Atmospheric pressure at ambient temperature AT = PAMB
Conversion of mmHg to atmosphere or Kg/cm2 or mmH2O
1 atmospheric = 760 mmHg = 101325 Pascal = 1.01325 Bar = 1.033 kg/cm2 =10332 mmH2O
