Question

Give the characteristics and effect of the monsoon rainfall in India.

Answer 1

Characteristics of Monsoon Rainfall in India :

i. Monsoon winds are not trades as trade winds are steady and permanent winds.

ii. They are not steady winds but are pulsating in nature.

iii. They are affected by different atmospheric conditions encountered by it. On its way over the warm tropical seas.

iv. The duration of the monsoon varies from 100 to 120 days from early June to mid- September.

v. Around the time of its arrival, the normal rainfall increase suddenly and continues regularly for several days.

Vii. This is called the 'burst' of the monsoon.

viii. They are distinguished from the pre-monsoon showers because of their increase in rainfall amount and regularity.

ix. The monsoon arrives at the southern tip of the Indian Peninsula generally by the first week of June.

Answer 2

$\large\tt\red{Explanation✓}$

The Monsoon, unlike the trades, are not steady winds but are pulsating in nature, affected by different atmospheric conditions encountered by it, on its way over the warm tropical seas. The duration of the monsoon is between 100-120 days from early June to mid-September. Around the time of its arrival, the normal rainfall increases suddenly and constantly continue for several days. This is known as the ‘burst’ of the monsoon and can be distinguished from the pre-monsoon showers. The monsoon arrives at the southern tip of the Indian peninsula, generally by the first week of June. Subsequently, it proceeds into two – the Arabian Sea branch and the Bay of Bengal branch. The Arabian Sea branch reaches Mumbai about ten days later on approximately the 10th of June. This is a fairly rapid advance. The Bay of Bengal branch also advances rapidly and arrives in Assam in the first week of June. The lofty mountains cause the monsoon winds to deflect towards the west over the Ganga plains. By mid-June, the Arabian Sea branch of the monsoon arrives over Saurashtra-Kachchh and the central part of the country. The Arabian Sea and the Bay of Bengal branches of the monsoon merge over the northwestern part of the Ganga plains. Delhi generally receives the monsoon showers from the Bay of Bengal branch by the end of June (tentative date is 29th of June). By the first week of July, western Uttar Pradesh, Punjab, Haryana and eastern Rajasthan experience the monsoon. By mid-July, the monsoon reaches Himachal Pradesh and the rest of the country.