Chennai receives more rainfall in winter because(i) The North-west win...
The North-east dry Monsoon winds blow over the Bay of Bengal during winter. - As they pass over the Bay of Bengal they develop moisture and bring rain to the Tamil Nadu coast. As now they are under the influence of on-shore winds, they are full of moisture. Chennai is located on the eastern coast.
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Chennai receives more rainfall in winter because(i) The North-west win...
Chennai experience winter rainfall every year because it is located near the equator.
Chennai receives more rainfall in winter because(i) The North-west win...
Explanation:
Chennai receives more rainfall in winter because of the following reasons:
(i) The North-East winds pick up moisture while crossing Bay of Bengal: During the winter season, the North-East monsoon winds blow over the Bay of Bengal and pick up moisture. These winds are responsible for bringing rainfall to Chennai. As the winds cross the Bay of Bengal, they gather moisture from the warm waters, leading to increased rainfall in Chennai during winter.
(ii) In summer, Chennai lies in the rain shadow of the Western Ghats: During the summer season, Chennai lies in the rain shadow region of the Western Ghats. The Western Ghats act as a barrier to the moisture-laden winds coming from the Arabian Sea, resulting in reduced rainfall in Chennai during summer.
(iii) The South-East winds pick up moisture while crossing Bay of Bengal: Similar to the North-East winds, the South-East monsoon winds also pick up moisture while crossing the Bay of Bengal. These winds bring rainfall to Chennai during the winter season.
(iv) In winter, Chennai lies in the rain shadow of the Eastern Ghats: In winter, Chennai lies in the rain shadow region of the Eastern Ghats. The Eastern Ghats obstruct the moisture-laden winds coming from the Bay of Bengal, leading to decreased rainfall in Chennai during this season.
Conclusion:
From the given options, only (i) and (ii) are correct. Chennai receives more rainfall in winter due to the North-East winds picking up moisture while crossing the Bay of Bengal and also because in summer, Chennai lies in the rain shadow of the Western Ghats. Therefore, option C is the correct answer.