Table of Contents
- Temperature and Air Pressure
- Summary
- Did You Know?
- What’s Next?
In the last segment, we learned about the relation between air pressure and speed of the wind. In this section, we will learn about the effect of temperature on air pressure.
What is the effect of temperature on air pressure?
With a rise in temperature, the air in a particular area becomes warm. The warm air is less dense and hence lighter and starts rising up. When the warm air rises up, it results in low pressure below it. Thus, an increase in temperature causes the difference in air pressure.
Now, the air in the upper layers of the atmosphere is cool. The cool air is denser than warm air and hence heavier. This cool air now starts moving from the high pressure area to the low
pressure area. This air movement in nature causes ‘Wind currents’. This means that wind often moves from colder areas to warmer areas.
What is Convection current?
The up and down movement caused in the air due to the temperature change is called Convection current.
Convection current
