It makes the data thet they collect more reliable so if they need the data again, they have already tested it a few times so therefor they know that it is right.
In this case, the air from the warm area will always start moving towards the colder areas because as the temperature in both lands should be equal. This is one of the laws of thermodynamics.
Potential energy is highest at the top of the loop, and kinetic energy is highest at the bottom of the loop.
