Troposphere

The Troposphere is the lowest layer of Earth's Atmosphere, extending from the Planetary-Surface to an average height of 13 kilometers. It contains approximately 75% of the total Atmospheric-Mass and nearly 99% of all Water-Vapor and Aerosols. According to the NASA Earth Science department, this region is the primary site for all Weather phenomena, including Cloud formation and Precipitation.

The thermal structure of the Troposphere is characterized by a decrease in Temperature with increasing altitude, a process governed by the Lapse-Rate. This gradient encourages vertical mixing through Convection. The upper boundary of this layer is the Tropopause, which serves as a stable interface separating it from the Stratosphere. Research published by the National Oceanic and Atmospheric Administration highlights how the Troposphere depth varies from 18 kilometers at the Equator to about 6 kilometers at the Poles due to seasonal changes and Centrifugal-Force.

• Stratosphere
• Meteorology
• Air-Pressure
• Greenhouse-Effect