What is the direction of the monsoon winds at the time of onset and retreat
Answers
Answer:
Explanation:
The onset of the Indian Monsoon and Withdrawal is defined in terms of zonal asymmetric temperature anomaly and withdrawal is defined in terms of vertical wind shear. 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 continues constantly 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 divides 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-Kuchchh and the central part of the country. The Arabian Sea and the Bay of Bengal branches of the monsoon merge over the north-western 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,
The south-west direction for onset and north east for retreat.
Explanation:
- The onset of monsoon season in India starts with the month of June to Sept and is dominated by the humid and hot southwestern winds that move across the country in the months of late May and early June.
- As the Indian subcontinent is heated during the hot and dry summers a low pressure is formed the moisture-laden winds comes to form the Indian ocean.
- They are drawn to the Himalayas they reach in two branches from the Arabian sea and the by of Bengal branch.
- The retreat of the monsoon starts at the end of Sept and is called as winter monsoon, due to the cooling of the subcontinent the winds and pressure starts to build up
- Thus winds descent firm the Himalayas towards the Deccan peninsular and moves towards the Australian plate.
Learn more about the direction of the monsoon winds at the time of onset and retreat.
- brainly.in/question/14701550 answered by Yogichaudhary.