(Pa) is a small unit, equal to a force of 1 Newton exerted over one square meter of surface area. Because of this, modern scientists are more likely to use kilopascals (kPa) in discussions of atmospheric pressure. Or they could use millibars (mbar), which are equal to 100 Pascals, ...
Pressure can also be stated in several different units. In the US, Pounds Per Square Inch (PSI) is common, while Pascals (Pa) are common elsewhere. The following are all equivalent ways of stating the pressure of the Earth's atmosphere at sea level: 14.7 PSI, 101325 Pa, 1013 hPa, 101....
The data of Reed (1983) are analysed to produce empirical equations for the amplitude in pascals of the air pressure wave associated with a volcanic eruption or a nuclear explosion. The authors examine Garrett's (1970) theory on the generation of water level fluctuations by an air pressure wav...
At sea level, atmospheric pressure is strong enough to lift a column of water to a height of about 10 meters, or a column of mercury, which is significantly heavier, to only 76 centimeters for a surface area of 1 square centimeter. Therefore, a mercury barometer is nothing more than a b...
The data of Reed (1983) are analysed to produce the following empirical equations for the amplitude p 0 (overall fluctuation) in Pascals of the air pressure wave associated with a volcanic eruption of volume V km3 or a nuclear explosion of strength M Mt: Here s is the distance from the ...