Question

Factors of mechanism of monsoon

Answer 1

Indian monsoon is largely controlled by the following factors:

Monsoon is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation. Monsoon being a complex climatological phenomenon various theories and concepts have been put forward to explain its origin.

i. The differential heating of the landmass of Asia and the Indian Ocean.

ii. The existence of the Himalayan ranges and the Tibetan Plateau.

iii. The occurrence of heavy-light snow over the Tibetan Plateau.

iv. The existence and circulation of upper air jet streams in the troposphere.

The origin of India monsoon has traditionally been ascribed to the differential heating and cooling of the continent of Asia and the Indian Ocean and Monsoon were considered large scale land and sea breezes. This simplistic model fails to explain many of the complex issues associated with monsoon.

According to recent dynamic theories, the Monsoon is a highly complex phenomenon that happens due to seasonal migration of planetary winds and pressure belts following the sun and is closely influenced by the middle and upper tropospheric circulation. The occurrence and changing position of jet stream influence the origin and development of monsoons.

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