Question

discuss the mechanism of monsoon

Answer 1

The monsoon of South Asia is among several geographically distributed global monsoons. It affects the Indian subcontinent, where it is one of the oldest and most anticipated weather phenomena and an economically important pattern every year from June through September, but it is only partly understood and notoriously difficult to predict. Several theories have been proposed to explain the origin, process, strength, variability, distribution, and general vagaries of the monsoon, but understanding and predictability are still evolving.

The unique geographical features of the Indian subcontinent, along with associated atmospheric, oceanic, and geophysical factors, influence the behavior of the monsoon. Because of its effect on agriculture, on flora and fauna, and on the climates of nations such as India, Nepal, Bangladesh, Bhutan, Pakistan, and Sri Lanka — among other economic, social, and environmental effects — the monsoon is one of the most anticipated, tracked,[3] and studied weather phenomena in the region. It has a significant effect on the overall well-being of residents and has even been dubbed the "real finance minister of India".[4][5]

Answer 2

The mechanism of the monsoon

1) The differential heating and cooling off land and water creates low pressure on the landmass of India while the seas around expert experience comparatively high pressure.

2) The shift of the position of Inter Tropical Convergence Zone (ITCZ) in summer over the Gangs plain.

3) The presence of the high pressure area east of Madagascar, approximately at 20°S over the Indian ocean. The intensity and position of this high pressure area affects Indian monsoon.

4) The Tibetan plateau gets intensely heated during summer, which results in strong vertical air currents and the formation of low pressure over the plateau at about 9 km above sea level.

5) The movement of the westerly jet stream to the north of the Himalayas and the presence of the tropical easterly jet stream over the Indian peninsula during summer.

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