Name the two planetary winds that converge at the Inter Tropical Convergence Zone.
What is meant by the ‘ burst ‘ of monsoon ? (Mention two points only).
3.The winter season in India is basically a dry season,so explain why winter rainfall occurs in the
Northern Plains? ( Answer should not exceed 80 words).
Answers
Answer:1) The northeast and southeast winds converge at the inter tropical convergence zone.
3)North-West India receives rainfall in winter because
(i) Cyclonic disturbances occur from the West and the North-West.
(ii) These low-pressure systems originate over the Mediterranean sea and Western Asia and move into India alongwith Westerly flow.
(iii) They cause winter rains over Punjab, Haryana and the Northern plains.
Explanation:
1. South East trade winds and North East trade winds converge at the Inter Tropical Convergence Zone or ITCZ.
2. The features of burst of monsoon are as follows:-
Around the time of arrival of monsoon in the normal rainfall increases suddenly and continues constantly for many days this is called as the ‘burst’ of monsoon.
It can be distinguished from pre monsoon showers.
3. A characteristic feature of the cold winter season over the northern plains is the inflow of cyclonic disturbances from the West and Northwest. These low pressure systems originate over the Mediterranean sea and Western Asia and move into India along with the westerly flow. They cause the much-needed winter rains over the northern plains and snowfall in the mountains.