Does atmospheric pressure increase or decrease with elevation?

Atmospheric pressure decreases with elevation due to the decreasing weight of the air above a given point as one ascends. At sea level, the atmosphere is denser and exerts a greater force due to the weight of the air column above. As you go higher in elevation, there is less air above, resulting in lower pressure. This phenomenon is fundamental in understanding numerous processes in meteorology and aviation, as well as in the operation of ice facilities where the ambient conditions can affect ice quality and safety.

The concept is essential for IFO certifications as it influences how temperature and pressure affect ice surface conditions, making it critical knowledge for operators.