What is the standard lapse rate of temperature in the troposphere?

The standard lapse rate of temperature in the troposphere is typically about 2 degrees Celsius for every 1,000 feet of altitude gained. This lapse rate represents the average decrease in temperature with an increase in altitude in the lower part of the atmosphere, where most weather phenomena occur.

As aircraft ascend through the troposphere, pilots need to account for this temperature decrease, as it can impact aircraft performance, including engine efficiency and aerodynamics. Understanding the lapse rate is essential for pilots when planning flights and managing altitude changes, as it can also affect weather patterns and cloud formation.

The other values offered in the choices do not reflect the standard lapse rate observed in meteorological conditions. The lapse rate can vary under different atmospheric conditions, but the average established in meteorological education for a standard atmosphere is indeed 2 degrees Celsius per 1,000 feet. This understanding is vital in ensuring pilots make informed decisions during flight operations.