The stratosphere is the second major layer of Earth's atmosphere, just above the troposphere, and below the mesosphere. source
The stratosphere is the second major layer of Earth's atmosphere, just above the troposphere, and below the mesosphere.
About 20% of the atmosphere's mass is contained in the stratosphere. source
About 20% of the atmosphere's mass is contained in the stratosphere.
The stratosphere is stratified in temperature, with warmer layers higher and cooler layers closer to the Earth. source
The stratosphere is stratified in temperature, with warmer layers higher and cooler layers closer to the Earth.
The border between the troposphere and stratosphere, the tropopause, marks where this temperature inversion begins. source
The border between the troposphere and stratosphere, the tropopause, marks where this temperature inversion begins.
Near the equator, the stratosphere starts at 18 km (59,000 ft; 11 mi); at mid latitudes. source
Near the equator, the stratosphere starts at 18 km (59,000 ft; 11 mi); at mid latitudes.
The stratosphere starts at 10–13 km (33,000–43,000 ft; 6.2–8.1 mi) and ends at 50 km (160,000 ft; 31 mi); at the poles, it starts at about 8 km (26,000 ft; 5.0 mi). source
The stratosphere starts at 10–13 km (33,000–43,000 ft; 6.2–8.1 mi) and ends at 50 km (160,000 ft; 31 mi); at the poles, it starts at about 8 km (26,000 ft; 5.0 mi).
Temperatures vary within the stratosphere with the seasons, in particular with the polar night (winter). source
Temperatures vary within the stratosphere with the seasons, in particular with the polar night (winter).
The greatest variation of temperature takes place over the poles in the lower stratosphere. source
The greatest variation of temperature takes place over the poles in the lower stratosphere.
Commercial airliners typically cruise at altitudes of 9–12 km (30,000–39,000 ft) which is in the lower reaches of the stratosphere in temperate latitudes. source
Commercial airliners typically cruise at altitudes of 9–12 km (30,000–39,000 ft) which is in the lower reaches of the stratosphere in temperate latitudes.
The SR-71 cruised at mach 3 at 26,000 m (85,000 ft), all within the stratosphere. source
The SR-71 cruised at mach 3 at 26,000 m (85,000 ft), all within the stratosphere.
The stratosphere is a region of intense interactions among radiative, dynamical, and chemical processes, source
The stratosphere is a region of intense interactions among radiative, dynamical, and chemical processes,
Bacterial life survives in the stratosphere, making it a part of the biosphere source
Bacterial life survives in the stratosphere, making it a part of the biosphere
Some bird species have been reported to fly at the lower levels of the stratosphere. source
Some bird species have been reported to fly at the lower levels of the stratosphere.
All within the stratosphere,Because the temperature in the tropopause and lower stratosphere is largely constant with increasing altitude, source
All within the stratosphere,Because the temperature in the tropopause and lower stratosphere is largely constant with increasing altitude,
An interesting feature of stratospheric circulation is the quasi-biennial oscillation (QBO) in the tropical latitudes. source
An interesting feature of stratospheric circulation is the quasi-biennial oscillation (QBO) in the tropical latitudes.