troposphere
/ˈtrɒpə(ʊ)sfɪə
/ /ˈtrəʊpə(ʊ)sfɪə/noun
The lowest region of the atmosphere, extending from the earth’s surface to a height of about 6-10 km (the lower boundary of the stratosphere).The stratosphere is the atmospheric layer between the troposphere and the mesosphere and extends from about 12 km altitude to about 50 km....
- The stratosphere extends above the troposphere to about 150,000 feet and is the region where the ozone layer is formed.
- The other two climate records, so-called ‘upper air’ records, measure temperatures in Earth's troposphere and stratosphere.
Derivatives
tropospheric
- The most egregious example is when the temperature sensor becomes coated with ice in a rain cloud, in which case upper tropospheric temperatures can be as much as 20 C too warm.
- So do all climate changes cause opposing trends in stratospheric and tropospheric temperatures?
- More significant is the delay caused by the troposphere, in particular tropospheric water vapour, which is non-dispersive and must be estimated using models of pressure, temperature, and humidity variation with altitude.
Origin
Early 20th century: from Greek tropos 'turning' + sphere.
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