Why does the stratosphere have a high temperature?

4.3. The increased temperature in this layer is due mainly to UV absorption by various chemical species, including ozone and molecular oxygen present in the stratosphere. Maximum heating takes place in the upper part of the stratosphere. Because of the stable air, pollutant mixing is suppressed within this layer.

Why is the troposphere colder than the stratosphere?

The troposphere is heated from the ground, so temperature decreases with altitude. Because warm air rises and cool air sinks, the troposphere is unstable. In the stratosphere, temperature increases with altitude. The stratosphere contains the ozone layer, which protects the planet from the Sun’s harmful UV radiation.

Why is the stratosphere warmer than the upper troposphere quizlet?

Why is the temperature in the upper stratosphere higher than the temperature in the lower stratosphere? Unlike the troposphere, the highest part of the stratosphere is warmer than lower levels. The upper stratosphere is warmer than the lower stratosphere because ozone gas absorbs and scatters the Suns ultraviolet rays.

Why does the stratosphere have a high temperature quizlet?

The temperature increases with increasing altitude in the stratosphere because there’s a high concentration of ozone molecules. These ozone molecules absorb UV rays from the Sun and then radiates this energy in the form of infrared waves. Nearby gases can absorb this infrared energy and increase in temperature.

Why does the troposphere get colder?

Since the earth’s surface is the primary heat source, temperatures will be warmest at the surface and decrease away from the surface. The average temperature profile of the troposphere will show a decrease in temperature with height. This is another reason the temperatures are colder aloft than at the surface.

Does the temperature increase or decrease in the stratosphere?

The stratosphere reaches from the tropopause to a height of about 50 km. Temperature in the stratosphere rises with increasing altitude, because the ozone layer absorbs the greater part of the solar ultraviolet radiation. The ozone layer is an absorbing agent that protects life on Earth.

Is the upper stratosphere cooler than the lower stratosphere?

Stroao- means layer or spread out. The stratosphere is the second laryer of the atmosphere and contains the ozone layer. The lower stratosphere is cold – supprisingly the upper stratosphere is warmer. It is the layer of the atmosphere that protects the EArth’s surface from being hit by most meteoroids.

Does the temperature in the stratosphere increase or decrease?

The stratosphere is the layer in the atmosphere above the troposphere. Temperature in the stratosphere rises with increasing altitude, because the ozone layer absorbs the greater part of the solar ultraviolet radiation. The ozone layer is an absorbing agent that protects life on Earth.

What happens to temperature as you go higher in the stratosphere?

In the stratosphere, temperature increases with altitude. The reason is that the direct heat source for the stratosphere is the Sun. A layer of ozone molecules absorbs solar radiation, which heats the stratosphere.

What causes the temperature in the lower troposphere to be warmer?

In the troposphere, the temperature generally decreases with altitude. The reason is that the troposphere’s gases absorb very little of the incoming solar radiation. Instead, the ground absorbs this radiation and then heats the tropospheric air by conduction and convection.

Why does the stratosphere get warmer the higher up you go?

The stratosphere gets progressively warmer the higher you go because the ozone layer is located in the stratosphere. When sunlight breaks apart molecules and they recombine into ozone in the ozone layer, heat is a byproduct of that reaction. And because of that reaction/ where it takes place, the heating of the stratosphere is opposite…

Why does the stratosphere have an opposite lapse rate to the troposphere?

Even though the stratosphere has an opposite lapse rate to the troposphere because of the ozone absorption, the effect of increasing GHGs is the same, i.e. since it is above the effective radiating level, it will cool. The cooling will be greatest as you go higher.

How is heat produced in the stratosphere?

Stratosphere contains ozone and it is formed when UV rays from the sun falls on the Oxygen molecule which leads to the formation of ozone . Ozone is not a stable compound so it breaks to form Oxygen which release heat energy . A large amount of UV rays are stopped here , which releases heat as one of its byproducts.

What is stratospheric cooling and tropospheric warming?

This is a revised version of Stratospheric Cooling and Tropospheric Warming posted on December 1, 2010. Increased levels of carbon dioxide (CO2) in the atmosphere have resulted in the warming of the troposphere and cooling of the stratosphere which is caused by two mechanisms.