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Monsoon Winds of Bay of Bengal| Class 11 Geography Notes

Last Updated : 26 Apr, 2024
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Monsoon winds are cool winds that blow from the sea’s surface to the land, carrying downpours with them. The rainstorm winds affect the environment of India. Southwest’s Bay of Bengal Branch monsoon streams over the Bay of Bengal, conveying extra moisture from the Bay of Bengal to northeast India and Bengal. The breezes carry a great amount of downpour towards the Eastern Himalayas.

This article will help you to understand the rainstorm winds of the Bay of Bengal, which will be useful in preparation for the UPSC Civil Service exam.

Monsoon-Winds-of-Bay-of-Bengal-Class-11-Geography-Notes

Monsoon Winds of Bay of Bengal| Class 11 Geography Notes

Monsoon Winds of Bay of Bengal

During the monsoon season, the Bay of Bengal branch of the southwest monsoon typically brings heavy rainfall to Myanmar and parts of southeast Bangladesh. However, the presence of the Arakan Hills along the coast of Myanmar redirects a significant portion of this monsoon branch towards the Indian subcontinent. Consequently, instead of approaching West Bengal and Bangladesh from the usual southwesterly direction, the monsoon enters these regions from the south and southeast.

As the monsoon branch encounters the Indian subcontinent, it bifurcates under the influence of geographical features such as the Himalayas and the thermal low over northwest India. One branch moves westward along the fertile plains of the Ganga, reaching as far as the Punjab plains in northwest India. The other branch moves up the Brahmaputra valley towards the north and northeast, bringing widespread rainfall to these regions. Additionally, a sub-branch of this monsoon branch strikes the Garo and Khasi hills of Meghalaya in northeast India. Mawsynram, located on the crest of the Khasi hills, receives the highest average annual rainfall in the world due to this phenomenon.

Conversely, the Tamil Nadu coast experiences relatively dry conditions during the monsoon season for two primary reasons. Firstly, the coast of Tamil Nadu runs parallel to the Bay of Bengal branch of the southwest monsoon, which means it does not receive direct moisture-laden winds from this monsoon branch. Secondly, the Tamil Nadu coast lies in the rainshadow area of the Arabian Sea branch of the southwest monsoon. This means that as the monsoon winds from the Arabian Sea ascend over the Western Ghats, they release moisture on the windward side, leaving the leeward side, which includes the Tamil Nadu coast, relatively dry.

Important Facts on Monsoon Winds of Bay of Bengal

Let us take a look at the important points regarding the topic

  1. The Southwest monsoon season in India starts in June with the arrival of the Southwest Rainstorm winds and goes on until the middle of September.
  2. Because of the critical rise in temperature over the northern fields in May, the low-pressure conditions there become considerably more extraordinary.
  3. Throughout the summer, damp air from the Indian Sea is pushed toward the north across the Indian subcontinent, creating precipitation.
  4. The southwest storm’s Bay of Bengal Branch is isolated into two main streams.
  5. The Bay of Bengal branch runs along the banks of Myanmar and southeast Bangladesh.
  6. In any case, the Arakan Slopes close to Myanmar’s coast redirect a huge lump of this branch towards the Indian subcontinent.
  7. Thus, the storm moves toward West Bengal and Bangladesh from the south and southeast as opposed to the south-westerly way.
  8. Affected by the Himalayas and the thermal low in northwest India, this branch breaks into two.Its one branch ventures toward the west along the Ganga fields, the entire way to the Punjab fields.
  9. The subsequent branch streams north and upper east up the Brahmaputra valley, producing weighty precipitation.
  10. Its sub-branch stumbles into Meghalaya’s Garo and Khasi slopes. Mawsynram, situated on the peak of the Khasi slopes, has the world’s most noteworthy typical yearly precipitation.
  11. During this season, the bank of Tamil Nadu stays dry. It tends to be credited to two elements:
  12. The bank of Tamil Nadu runs lined up with the Bay of Bengal, part of the southwest storm.
  13. It is situated in the rain shadow region of the southwest storm’s Middle Eastern Ocean branch.
  14. The storm parts of the Arabian Ocean and the Bay of Bengal meet over the northern region of the Ganga fields.
  15. Toward the end of June, Delhi normally gets storm downpours from the Bay of Bengal branch.

Conclusion

The Southwest Rainstorm season in India starts in June with the arrival of the Southwest Storm winds and goes on until the mid of September. The Bay of Bengal branch runs along the shores of Myanmar and southeast Bangladesh. The Bay of Bengal branch is likewise moving rapidly, and it will arrive at Assam in the first week of June. As a result of the high mountains, the storm winds divert toward the west across the Ganga fields.

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Frequently Asked Questions: Monsoon Winds of Bay of Bengal Class 11 Notes

What are the monsoon winds of the Bay of Bengal Class 11?

The storm winds impact the environment of India. Southwest’s Bay of Bengal Branch monsoon streams over the Bay of Bengal, conveying extra dampness from the Bay of Bengal to north-east India and Bengal.

What is the monsoon of the Bay of Bengal?

The rainfall is a consequence of the combination of wind stream from the Bay of Bengal and opposite breezes from the South China sea. The beginning of the rainstorm happens over the Bay of Bengal in May, showing up at the Indian Peninsula by June, and afterward the breezes move towards the South China Ocean.

What are the two monsoon winds called?

India actually has two monsoons – the southwest monsoon and the northeast monsoon.

What is the old name of Bay of Bengal?

In ancient Classical India, the Bay of Bengal was known as Kalinga Sagar (Kalinga Sea).

Which wind blows from the Bay of Bengal?

The north-east winds, also known as the retreating monsoon winds blow over the Bay of Bengal and cause rainfall in the South.


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