The air near the surface will usually become warmer throughout the day. This is one of the main reasons why it is unstable. Then at night, the air that is close to the surface will begin to cool. This is going to form a temperature inversion or a stable atmosphere.2. Inversions aloft are sometimes called “capping inversions” or “lids”. Why?
This is because it is like putting a lid on the atmosphere.
3. You are flying at 4,000 feet AGL over a city during the day. There are no clouds present. As you descend to land at a nearby airport, you notice that, although visibility was very good at 4, ...
