What Is Mesopause?
The coldest boundary in Earth's atmosphere, at the top of the mesosphere. In technical terms: The boundary between the mesosphere and thermosphere at roughly 80-90 km, where temperatures reach about -90 °C or colder, the global temperature minimum of the atmosphere.
Mesopause In Plain English
The coldest boundary in Earth's atmosphere, at the top of the mesosphere.
The Technical Definition
The boundary between the mesosphere and thermosphere at roughly 80-90 km, where temperatures reach about -90 °C or colder, the global temperature minimum of the atmosphere.
