< p >你是正确的,气氛永远不能正压。重要的是要注意,理想气体定律相关只作为一个状态方程;它不描述气体作为一个整体。正压的假设有效P = \ρRT_0美元。有效地,它说“保持温度不变”你可能注意这是特别重要的在讨论静水和色/气压方程。< / p > < p >注意,大气中不完全正压;大气中经受不住完全绝热运动;风永远保持地转,等。有糟糕的假设,我们知道他们是(上课微气象学处理相似理论)。但在乔治的话说盒”,所有模型都是错的,但有些是有用的。”These simple models teach us about basic atmospheric behavior. It is also worth noting that the ideal gas law is not the only equation of state. The Boussinesq and anelastic approximations can lead to interesting other formulations of the equation of state.