ATM 10 Lecture Notes - Lecture 6: Hydraulic Jump, Latent Heat, Ideal Gas Law
25 Sep 2016
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Lecture 6 & 7: october 27, 2014: atmospheric stability and cloud formation: atmospheric stability. Stable: cold water below and warm water above; unstable: cold water above and warm water below. In the troposphere, temperature decreases as height increases. The troposphere is absolutely stable most of time and place, because the denser air below compensates for the warmer air below. To have an unstable atmosphere, there still needs to have warm air below, but there needs to be much warmer air below or much colder air above! Lapse rate is the rate temperature changes in vertical. Is key to determining the stability of an air layer: air parcel and buoyancy. It"s all about relative density or temperature: whenever density differences exist between something and its surrounding fluid, gravity pulls down on the more. Ex: the hot air of the balloon is warmer and lighter compared to the surrounding air. dense object, thereby lifting the less dense object.
