What does air mass depend mainly on?

1 Answer
Oct 24, 2016

Temperature and humidity.

Explanation:

There is really only 2 variables in the atmosphere (everything else is due to these), temperature and moisture content.

An air mass will be determined by the heat and humidity of the air, and these 2 things depend on the source area that the air mass formed, and are modified by how it travels. If it forms over a subtropical desert it will be hot and dry. If it moves over an ocean it will modified to become hot and moist.