Coldest Part of Earth's Atmosphere Identified
The coldest region within Earth's atmosphere is the mesopause.
Atmospheric temperatures generally decrease with increasing altitude through the troposphere and stratosphere. This cooling trend reaches its minimum in the upper part of the mesosphere.
The mesopause, situated at the boundary between the mesosphere and the thermosphere, experiences the lowest temperatures recorded in the atmosphere. These temperatures can drop to approximately $-90$ °C ($-130$ °F or $183$ K).
While the thermosphere has extremely high temperatures, these reflect the high kinetic energy of individual particles in the very thin upper atmosphere, not the heat content experienced by objects. The tropopause and stratopause are boundaries where temperature profiles change but do not represent the absolute coldest point.
Similar Questions
In the above figure, the curves A, B and C denote____, ____ and ____ distributions, respectively.
- The mixing ratio of water vapour in the Earth's atmosphere is approximately
- Oxygenation of the Earth's atmosphere was caused by
- Secondary aerosols are products of
Important Questions from Principles Of Stratigraphy
- Which one of the following molecules is the most buoyant in the atmosphere?
In the above diagram, A, B and C represent, respectively, the tropospheric concentrations of
- Oxygen atom required to form tropospheric ozone comes from
- Atmospheric layers where convection takes place are
Radiocarbon, used for dating sediments, is produced at the top of the Earth's atmosphere by the
