“tropopause”的概念、定义、翻译、参考文献-科学参考

tropopause

Astronomy

The uppermost limit of the troposphere, at its boundary with the stratosphere. The precise altitude of the tropopause depends on latitude, being around 10 km in temperate regions, but closer to 15 km at the equator. Seasonal variations also occur, the height of the tropopause being greater in summer. Temperatures in the troposphere reach their minimum at the tropopause, typically around −40°C in the summer.

Geology and Earth Sciences

The boundary separating a lower layer of the atmosphere (troposphere), in which air temperature generally decreases with height, from the layer above (stratosphere), in which temperature remains constant or increases with height. The altitude of the tropopause varies according to sea-surface temperature and season, but also over shorter periods, from an average of 10–12 km over the poles (occasionally descending to 8 km or below) to 17 km over the equator. See also atmospheric structure.

Geography

The upper limit of the troposphere, above which very few clouds, except for the nacreous and noctilucent, form.

单词	tropopause
释义	tropopause Astronomy The uppermost limit of the troposphere, at its boundary with the stratosphere. The precise altitude of the tropopause depends on latitude, being around 10 km in temperate regions, but closer to 15 km at the equator. Seasonal variations also occur, the height of the tropopause being greater in summer. Temperatures in the troposphere reach their minimum at the tropopause, typically around −40°C in the summer. Geology and Earth Sciences The boundary separating a lower layer of the atmosphere (troposphere), in which air temperature generally decreases with height, from the layer above (stratosphere), in which temperature remains constant or increases with height. The altitude of the tropopause varies according to sea-surface temperature and season, but also over shorter periods, from an average of 10–12 km over the poles (occasionally descending to 8 km or below) to 17 km over the equator. See also atmospheric structure. Geography The upper limit of the troposphere, above which very few clouds, except for the nacreous and noctilucent, form.
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