Why are clouds called nimbus?
Why are clouds called nimbus?
user
Nimbus is a word that means a group of clouds, or a cloud bank.  It comes from the Latin, the name of a character from Greek mythology.
assistant
Are there different types of nimbus clouds?
user
Yes.  For example, cirrus, stratus, cumulus and stratocumulus are all nimbus clouds.
assistant
What is the difference between cirrus and cumulus clouds then?
user
Cirrus clouds are made up of ice crystals that are fairly flat, or thin.  They can cover large areas of the sky, but they aren’t as tall or as dense as cumulus clouds.  Cumulus clouds are typically made up of small water droplets.  They have soft edges that curve down, and are not very thick.  They’re fairly low, and don’t cover a very wide area.  Some cumulus clouds can grow tall and spread out, and become cumulonimbus clouds.  Cumulonimbus clouds are high, dense and dark.
assistant
Which one is in the troposphere?
user