ATMOSPHERIC PHENOMENA & STRUCTURES A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site atmospheric pressure Image courtesy University of Illinois WW2010 Project The force per unit area at any point in an atmosphere due to the weight of atmospheric gases above it. Atmospheric pressure is measured in millibars, bars, or atmospheres. The standard atmospheric pressure at the surface of the Earth is 1,013 mb. On Venus the surface pressure is about 90,000 mb (90 bars), while on Mars it is about 7.5 mb. Related category    • ATMOSPHERIC PHENOMENA AND STRUCTURES Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP