standard artillery atmosphere

A set of values describing atmospheric conditions on which ballistic computations are based, namely: no wind, a surface temperature of 15øC, a surface pressure of 1000 millibars, a surface relative humidity of 78%, and a lapse rate which yields a prescribed density-altitude relation.

Related terms:

• standard artillery zone
• standard atmosphere
• standard pressure
• polytropic atmosphere
• limit of the atmosphere
• adiabatic atmosphere
• process lapse rate
• standard project flood
• homogeneous atmosphere
• optically effective atmosphere