as altitude rises less there is less atmospheric pressure
It's due to the low pessure there.
Altitude increases.
Relative altitude
Density Altitude is the altitude relative to the standard atmosphere conditions (ISA) at which the air density will be equal to the indicated at the place of observation.
The altitude cannot be determined based solely on temperature and relative humidity. Altitude is primarily based on air pressure, not temperature and humidity. Additional information, such as air pressure or location, would be needed to accurately determine altitude.
If performed correctly, your altitude should increase.
If performed correctly, your altitude should increase.
If performed correctly, your altitude should increase.
If performed correctly, your altitude should increase.
If performed correctly, your altitude should increase.
As altitude increases, atmospheric pressure decreases.
Altitude describes an object's position relative to sea level. An object in a position higher than sea level would have a positive altitude, sea level would have an altitude of zero, and any object below sea level would have a negative altitude.