Why stratosphere is cooler than the troposphere?Asked by: Rex Kuhlman
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Cooling by ozone depletion is the simpler of the two mechanisms. Stratospheric ozone absorbs ultraviolet radiation emitted by the sun as it enters Earth's atmosphere. ... In the troposphere, greenhouse gases slow the dissipation, eventually to space, of energy emitted by Earth as infrared radiation.View full answer
Then, Why is the stratosphere cooling?
— Why does the stratosphere cool? we increase the emissivity of the air, which should emit more energy at the same temperature, and then if the ozone has not change, the air should cool. Easy! up in the stratosphere.
Also Know, Why is the stratosphere hotter at the top?. The increase of temperature with altitude is a result of the absorption of the Sun's ultraviolet (UV) radiation by the ozone layer. The temperature inversion is in contrast to the troposphere, near the Earth's surface, where temperature decreases with altitude.
Besides, Is stratosphere warm or cool Why?
Temperatures rise with increasing altitude in the stratosphere. Ozone molecules in the stratosphere absorb ultraviolet radiation coming from the Sun. The energy from the UV radiation is transformed into heat. The heating is most intense near the top of the stratosphere, so that is where the stratosphere is warmest.
Why do planes fly in the stratosphere?
Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below. The stratosphere is very dry; air there contains little water vapor. ... Because of this, jet aircraft and weather balloons reach their maximum operational altitudes within the stratosphere.
Mesosphere, altitude and temperature characteristics
The top of the mesosphere is the coldest area of the Earth's atmosphere because temperature may locally decrease to as low as 100 K (-173°C).
The stratosphere is not a good place to be. First, the ozone in the stratosphere, which protects us from biologically destructive solar ultraviolet light, exists at such high levels that the air itself is toxic. Second, even this toxic air is much too thin for normal breathing.
The temperature gets warmer as you go upward in the stratosphere. Earth's "sunscreen", the ozone layer, is within the stratosphere. Ozone molecules absorb energy from ultraviolet "light" coming from the Sun. They turn that energy into heat.
- 1) Eastern Antarctic Plateau, Antarctica (-94°C) ...
- 2) Vostok Station Antarctica (-89.2°C) ...
- 3) Amundsen-Scott Station, Antarctica (-82.8°C) ...
- 4) Denali, Alaska, United States of America (-73°C) ...
- 5) Klinck station, Greenland (-69.6°C) ...
- 6) Oymyakon, Siberia, Russia (-67.7°C)
The stratosphere contains roughly 20 percent of the atmosphere's mass. Because bacterial life can survive in the stratosphere, this layer of the atmosphere belongs to the biosphere. Some species of birds have even been reported to fly in the lower levels of the stratosphere.
They cool our planet because they reflect incoming sunlight back to space. Air pollution in the form of aerosols -- particles suspended in the atmosphere -- can increase this cooling effect because it makes clouds brighter. The cooling effect of pollution offsets part of the warming effect of greenhouse gases.
That's how he ended up in Yakutsk, Russia. The capital city of the vast (1.2 million square miles) Siberian region known as the Sakha Republic, Yakutsk is widely identified as the world's coldest city. “No other place on Earth experiences this temperature extreme,” Iuncker says.
No, it does not snow in the Philippines. The Philippines has a tropical climate therefore it is nearly always hot. The lowest temperature on record in the Philippines was a reading of 6.3 °C (43°F) in Baguio city back on January 18, 1961.
There are many places in Bukidnon that experience cooler weather than the rest of the Philippines, but the coldest among them is Lantapan. Located 4,000 above sea level, the weather here is so cold that there are times that dew lingers until noon.
Temperature of the Exosphere
The exosphere is closer to the Sun than the other layers of the atmosphere and therefore is the warmest. However, the temperature of the exosphere varies greatly, usually between 0 °C and 1700 °C, and can even experience very cold temperatures, which is attributed to several factors.
Heat is produced in the process of the formation of Ozone and this heat is responsible for temperature increases from an average -60°F (-51°C) at tropopause to a maximum of about 5°F (-15°C) at the top of the stratosphere. This increase in temperature with height means warmer air is located above cooler air.
The thermosphere is often considered the "hot layer" because it contains the warmest temperatures in the atmosphere. Temperature increases with height until the estimated top of the thermosphere at 500 km. Temperatures can reach as high as 2000 K or 1727 ºC in this layer (Wallace and Hobbs 24).
Partial pressures. You can breath at 35,000 ft without a pressured suit, but go much higher and you can't. At sea level, you have 760 mmHg of air pressure. ... At 35,000 ft, air pressure is 179 mmHg , so if you breath 100% pure oxygen, you're getting the same amount of oxygen you'd get at sea level.
An elevation of about 20,000 feet above sea level is the maximum height at which sufficient oxygen exists in the air to sustain us.
Above 28,000 to 30,000 feet with extra oxygen under pressure -- normal consciousness and life can be sustained to 50,000 feet. Above 50,000 feet with any form of oxygen -- sustained human life is not possible without a pressure suit like astronauts wear.
Pressure and temperature increase with depth beneath the surface. The core is the thickest layer of the Earth, and the crust is relatively thin, compared to the other layers.
This is the layer we live in and contains most of what we consider to be "the atmosphere," including the air we breathe and nearly all of the weather and clouds we see. In the troposphere, the temperature of the air decreases the higher you go.
The layer of the atmosphere that has the highest level of oxygen is the troposphere.
In terms of extreme heat, no place holds a candle to Dallol, the hottest place on earth. Located in the sizzling Danakil Depression (a geological landform sunken below the surrounding area), it can reach a boiling 145 degrees in the sun.