troposphere

lower part of the atmosphere, extending from the surface up to a height varying from about 7 to 9 kilometers (4.3 to 5.6 miles) at polar regions to approximately 17 kilometers (10.6 miles) in tropics; characterized by decreasing temperature with height, appreciable vertical wind motion, appreciable water vapor content, and weather.

Topic(s):

climatology and meteorology

Note: This web application is optimized for desktop and laptop use. It might not display or function as intended on a mobile device. Opening the application directly may give better results.