DMPQ- . How does pressure belt’s movement affect the formation of various climatic regions across the globe?

Some air movements are the result of the systematic pressure gradients that arise from latitudinal changes in the Earth’s surface temperature. One notable example is the Hadley Cell, a movement of warm air from the tropics that rises, flows toward the poles and then cools and sinks at around 30 degrees north and south of the equator. This movement creates belts of low pressure in the tropics and high pressure in the temperate zone where the air sinks.

Air flowing from zones of high pressure to zones of low pressure causes winds, just like the way air gushes from a punctured tire or balloon. Uneven heating and convection generate the pressure differences; the same tendencies create currents in a saucepan of water heating on a stove. The difference in this case is that the convection currents that create winds take place on a far greater scale.

Because both small winds and larger pressure belts are driven by temperature differentials, changes in temperature at the surface can alter them. For example, ENSO (southern oscillation) events, such as El Nino and La Nina, include unseasonal alterations in ocean temperature that can magnify or decrease the strength of wind belts across the globe. Similarly, when centers of low pressure or high pressure move through an area, they can alter the flow of local wind and even create storms. Tropical cyclones come from low pressure zones in the tropics, and their powerful winds are some of the strongest on the planet.

UPPCS Notes brings Prelims and Mains programs for UPPCS Prelims and UPPCS Mains Exam preparation. Various Programs initiated by UPPCS Notes are as follows:- For any doubt, Just leave us a Chat or Fill us a querry––

UPPSC Mains Test Series 2020

Subscribe our Test Series program to get access to 20 Quality mock tests for UPPSC Preparation.

Click Here for Mains Test Series and Notes

Click Here for Mains Printed Notes (With COD)

Hope we have satisfied your need for UPPSC Prelims and Mains Preparation

Kindly review us to serve even better

Subscribe to UPPSC Notes

Never Miss any UPPSC important update!

Join 221 other subscribers