I love looking at clouds. I love trying to describe them and compare what I see day to day.
I have dozens of questions about the things I’ve observed and I would really like to understand the physics of the world around me. Today I would like to focus on the surface dynamics of cumulus clouds. Why do some cumulus clouds have distinct textured surface while others are softer and wispy at the edge?
I imagine it probably comes down to temperature and pressure. It may also be an effect of direct sunlight, I’m not sure. I notice the soggy cotton clouds are more common in the evening and the billowy ice cream clouds are more common mid-day.
Do clouds have surface tension like liquid water?
Does the flow of water either into or out of a cloud affect its surface characteristics?