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troposphere
atmospheric region
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Canadian experiment aboard NASA satellite switched off
• Apr. 12, 2025, 3:38 AM ET (Globe and Mail)
troposphere, lowest region of the atmosphere, bounded by the Earth beneath and the stratosphere above, with its upper boundary being the tropopause, about 10–18 km (6–11 miles) above the Earth’s surface.
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See all videos for this articleThe troposphere is characterized by decreasing temperature with height and is distinguished from the overlying stratosphere by a region of nearly constant temperature in the lower stratosphere. Most of the clouds and weather systems are contained within the troposphere.