Search results
Nitrous oxide (N 2 O) is produced by biological activity at the surface and is oxidised to NO in the stratosphere; the so-called NO x radical cycles also deplete stratospheric ozone.
The stratosphere extends from the top of the troposphere to about 50 km (31 miles) above the ground. The infamous ozone layer is found within the stratosphere. Ozone molecules in this layer absorb high-energy ultraviolet (UV) light from the Sun, converting the UV energy into heat.
20 sie 2024 · The stratosphere extends from 4 -12 miles (6-20 km) above the Earth's surface to around 31 miles (50 km). This layer holds 19 percent of the atmosphere's gases but very little water vapor. In this region, the temperature increases with height.
25 cze 2024 · The stratosphere is crucial to life on Earth because it contains small amounts of ozone, a form of oxygen that prevents harmful UV rays from reaching Earth. The region within the stratosphere where this thin shell of ozone is found is called the ozone layer .
The lower boundary of the stratosphere is called the tropopause; the upper boundary is called the stratopause. Ozone , a type of oxygen molecule that is relatively abundant in the stratosphere, heats this layer as it absorbs energy from incoming ultraviolet radiation from the Sun. Temperatures rise as one moves upward through the stratosphere.
Between 85 and 90% of all the ozone in the atmosphere is found in the stratosphere. Ozone is formed when sunlight breaks down molecular oxygen (O 2) in the stratosphere into oxygen atoms (O). The highly reactive oxygen atoms then react with more molecular oxygen to form ozone (O 3).
3 maj 2022 · The stratosphere is the layer bounded by the tropopause at its base (12 km; 7.5 mi; 39,000 ft)) up to the stratopause (55 km; 31 to 34 mi; 164,000 to 180,000 ft). Air pressure within the stratosphere is only about 1/1000 of the pressure at sea level.
