050 Meteorology — (jaa Atpl Theory).pdf

: Pilots use the International Standard Atmosphere (ISA) model, which assumes temperature decreases at a steady rate of 2°C per 1,000 ft (or 0.65°C per 100m) until reaching the tropopause. Why This Matters for Pilots

In the subject for the JAA ATPL theory, one of the most interesting and critical concepts is the relationship between temperature and the height of the tropopause . While it might seem counterintuitive, the tropopause is significantly higher and much colder over the equator than it is over the poles. Key Atmospheric Highlights 050 Meteorology (JAA ATPL theory).pdf

: Virtually all significant weather, including 90% of all water vapor, is contained within the troposphere , the lowest layer of the atmosphere. : Pilots use the International Standard Atmosphere (ISA)