There are several units in common usage. In the US they like "inches of Mercury" and "Paschals." Industrial types (especially those dealing in steam) like inches of WC (water column). Scientists like me prefer to use millimeters of mercury, or "atmospheres" (1 ATM= 760 mm Hg = 1 Torr). Take your pick!
Usually the instrument used is called a barometer- which could be a closed end manometer or an aneroid barometer.An altimeter actually also measures atmospheric pressures - but for a different purpose.
Atmospheric pressure is a unit of measument, and measure the pressure of the air. Much like the deeper you go in the ocean the higher the pressure is. You are actually on the bottom of an ocean of air, the higher up the less atmospheric pressure and eventually there is non when you reach outer space.
It is an definition by the international organization. When the temperature is 15 centigrade degree. To measure the atmospheric pressure is 1013.25 hundred pascals.
Pressure = force divided by area p = F / A.
hPa is hectoPascals, the unit of atmospheric pressure. 1026 hPa is relatively high pressure.
The SI unit for pressure is the Pascal.
A millibar is a unit of pressure most commonly used to measure atmospheric pressure.
the Barometer by Torricelli Type your answer here...
Newtons / square meter. This unit has the special name Pascal.
milli bar
A barometer is used to measure atmospheric pressure. It can also measure altitude!
Bar is a unit used to measure pressure, one bar is the normal atmospheric pressure of the on the surface of the earth, and ten bar is when the pressure is ten times the normal atmospheric pressure on the surface of the earth.
In weather maps, atmospheric pressure is measured in millibars. Standard atmospheric pressure is 1013.2 millibars at sea level. Air pressure varies depending on temperature and air density.
A barometer is used to measure atmospheric pressure. It can also measure altitude!
the s.i unit of atmospheric pressure is 100000 N/m2
A barometer is used to measure atmospheric pressure. It can also measure altitude!
It measure the Atmospheric Pressure.