atmospheric pressure
121pressure center — Meteorol. the central point of an atmospheric high or low …
122Low-pressure area — This depiction of the Hadley cell shows the process which sustains low pressure areas. Diverging winds aloft allow for lower pressure and convergence at the Earth s surface, which leads to upward motion. A low pressure area, or low , is a region… …
123Difference between gauge and absolute pressure — The most common pressure reference is gauge pressure signified by a (g) after the pressure unit e.g. 30 psi g, which means that the pressure measured is the total pressure minus atmospheric pressure. There are two types of gauge reference… …
124Orders of magnitude (pressure) — This is a tabulated listing of the orders of magnitude in relation to pressure expressed in pascals. Magnitude Pressure lbf/in2 or dB Item 10−13 Pa 0.1 pPa Interstellar space pressure (approximate) 10 …
125Standard conditions for temperature and pressure — Not to be confused with Standard state. In chemistry, standard condition for temperature and pressure (informally abbreviated as STP) are standard sets of conditions for experimental measurements, to allow comparisons to be made between different …
126Vapor pressure — (also known as equilibrium vapor pressure or saturation vapor pressure ), is the pressure of a vapor in equilibrium with its non vapor phases. All liquids and solids have a tendency to evaporate to a gaseous form, and all gases have a tendency to …
127Static pressure — * In the design and operation of aircraft, static pressure is the air pressure in the aircraft’s static pressure system.* In fluid dynamics, static pressure is the pressure at a nominated point in a fluid. Many authors use the term static… …
128air pressure — noun the pressure exerted by the atmosphere • Syn: ↑atmospheric pressure, ↑pressure • Hypernyms: ↑gas pressure • Hyponyms: ↑barometric pressure, ↑compartment pressure, ↑ …
