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How is Northeast monsoon formed?. Elucidate its significance in agriculture and economy of India. (200 Words, 15)
Monsoon is a seasonal reversal of winds in which trade winds enter Indian sub-continent bringing along with them moisture laden clouds. Monsoons play a major role in India’s growth. They are the major source of irrigation for crops and help in maintaining water balance.
Mechanism of northeast monsoon
- Change in ITCZ During mid-September, the ITCZ starts moving downwards from its position in Indo-Ganges plains. By October the ITCZ is near the east coast and Bay of Bengal.
- Reversal of winds The winds that blow from southwest direction stop completely. In their place, winds from northeast start blowing towards ITCZ, forming northeast monsoon.
- Sowing in east coast East coast and Coromandel Coast come under the rain shadow region of southwest monsoon. Hence, agriculture activities take place during northeast monsoon.
- Rainfall in interior The interior areas of Deccan do not get rains during southwest monsoon. Northeast monsoon blows into the interiors, bringing rains in such areas.
- Water availability The northeast monsoon acts as sustainer of water requirements. In many regions of the country northeast monsoon contributes to water needs of the people.
POSTED ON 28-03-2022 BY ADMIN
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