Give reasons as to why (i) Seasonal reversal of wind direction takes place over the Indian subcontinent (ii) The bulk of rainfall in India is concentrated over a few months

Q- Give reasons as to why:

1. Seasonal reversal of wind direction takes place over the Indian subcontinent.

1. Due to differential pressure seasonal reversal of wind direction takes place over the Indian subcontinent. A major part is played by the E1 Nino. E1 Nino is the main reason behind the seasonal reversal of wind direction takes place over the Indian subcontinent.

2. The bulk of rainfall in India is concentrated over a few months.

2. The bulk of rainfall in India is concentrated over a few months because in India the monsoon begins from the first week of June and start covering the areas of whole country by mid July quickly. 

Therefore the bulk of rainfall in India is concentrated over a few months.

3. The Tamil Nadu coast receives winter rainfall.

3. Tamil Nadu is a coastal state which experiences a big change in pressure of atmosphere. Tamil Nadu coast receives winter rainfall because of movement of low-pressure conditions to the Bay of Bengal Sea.

4. The Delta region of eastern coast is frequently struck by cyclones.

4. As the Bay of Bengal is the centre of many pressure changes and therefore, there always leads to the change of atmospheric pressure. These rapid changes in atmospheric pressure lead to formation of cyclones in eastern coastal region mainly delta region of eastern coast is frequently struck by cyclones.

5. Parts of Rajasthan, Gujarat and the leeward side of Western Ghats are droughts.

5. Parts of Rajasthan, Gujarat and the leeward side of Western Ghats are droughts because these areas fall in the rain shadow areas of the Aravali. These parts do not receive enough rainfall so these areas are more prone to drought. 

Leave a Comment