Discussion
Arrange the stages of convective cloud formation in order.
1. saturation is reached at the lifting condensation level
2. surface heating produces a buoyant parcel
3. condensation releases latent heat and the cloud deepens
4. the parcel rises and cools at the dry adiabatic rate
Answer: D
Correct answer: 2 - 4 - 1 - 3
Surface heating makes a parcel buoyant, it rises and cools at the dry adiabatic rate, it reaches saturation at the lifting condensation level, and thereafter condensation releases latent heat so that it cools more slowly and remains buoyant for longer - which is what allows the cloud to deepen. Each stage follows from the one before, and the latent heat release at the end is why convective clouds grow so much taller than the initial buoyancy would suggest.
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