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Questions
Explain How is distribution of annual rainfall in related to the relief of the country? with examples.
How is distribution of annual rainfall in related to the relief of the country?
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Solution
The Western Ghats: places to the windward side of the Ghats, e.g., Mumbai, Goa, Mangalore, Kerala coasts, get heavy rain. Places on the leeward side like Pune, the Deccan plateau, Chennai, get less rain.
Garo-Khasi Hills: Cherrapunji, which is favourably situated in these hills, gets entrapped in the Bay of Bengal branch of the S.W. Monsoon and gets very heavy rain; Shillong, which lies on the leeward side of these Hills gets less rain.
Aravalli Hills: These hills run parallel to the Arabian Sea branch of the S.W. Monsoon and are not conducive to rain. Besides, the Bay of Bengal winds of the S.W. Monsoon coming from the east is blocked and hence Rajasthan, lying on the leeward side of these Hills, gets little rain. This is why Thar is a desert.
The Himalaya Mountains block the Bay of Bengal branch of the S.W. Monsoon from crossing the mountains. The places on the southern slopes of the Mountains get heavy rain.
RELATED QUESTIONS
Study the climate data given below and answer the questions that follow:
| Month | Jan | Feb | Mar | Apr | May | June | July | Aug | Sep | Oct | Nov | Dec |
| Temperature in °C |
25.0 | 25.5 | 26.3 | 27.1 | 30.0 | 36.2 | 36.0 | 35.9 | 35.9 | 29.3 | 27.0 | 24.6 |
| Rainfall cm | 24.5 | 23.1 | 15.0 | 2.4 | 0.1 | 11.0 | 9.3 | 4.0 | 10.5 | 4.0 | 14.5 | 20.4 |
1) Calculate the annual temperature range.
2) What is the total annual rainfall?
3) Presuming that the station is located in India, give a reason for its location being on the east coast or west coast of India.
How are the sources of rainfall in the North-west part of India different from the rainfall experienced on the coastal areas of Eastern India in winter?
Why are there great variations in the climate of the Indian sub-continent?
Why does the Tamil Nadu coast get rainfall in October?
Mumbai receives rainfall in the summer season while Chennai receives rainfall from October to December. Why?
Study the climatic data given below and answer the questions that follow:
| Month | Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. |
| °C | 25.0 | 25.5 | 26.3 | 27.1 | 30.0 | 36.2 | 36.0 | 35.9 | 30.3 | 28.4 | 27.0 | 24.6 |
| cm | 24.5 | 23.1 | 15.0 | 2.4 | 0.1 | 11.0 | 9.3 | 7.2 | 4.0 | 9.4 | 14.5 | 20.4 |
(i) Calculate the annual temperature range.
(ii) What is the total annual rainfall?
(iii) Presuming that the station is located in India, give a reason for its location being on the east coast or the west coast of India.
Study the table given below and answer the questions that follow:
| Station | Month | J | F | M | A | M | J | J | A | S | O | N | D |
| A | Temperature in Degree C. | 14.4 | 16.7 | 23.3 | 30.0 | 33.3 | 33.3 | 30.0 | 29.4 | 28.9 | 25.6 | 19.4 | 15.6 |
| Rainfall in cm | 2.5 | 1.5 | 1.3 | 10 | 1.8 | 7.4 | 19.3 | 17.8 | 11.9 | 1.3 | 0.2 | 1.0 | |
| B | Temperature in Degree C. | 24.4 | 24.4 | 26.7 | 28.3 | 300 | 28.9 | 27.2 | 27.2 | 27.2 | 27.8 | 27.2 | 25.0 |
| Rainfall in cm | 0.2 | 0.2 | 0.3 | 10 | 1.8 | 50.6 | 61.0 | 24.8 | 24.8 | 24.8 | 1.0 | 0.7 |
(i) Calculate the annual rainfall in station A.
(ii) What is the annual range of temperature in station B?
(iii) Which of the two stations has an equable climate?
Name the winds which are responsible for heavy rainfall in India.
Give one example of ‘Rain Shadow’ areas in India.
The average rainfall of India is about:
