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Question
Give one example of ‘Rain Shadow’ areas in India.
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Solution 1
An example of a ‘Rain Shadow’ area in India is the Arabian Sea branch: Chennai lies on the leeward side of the Western Ghats and falls under the Rain Shadow.
Solution 2
One example of a rain shadow area in India is the leeward side of the Western Ghats. The moisture-laden summer monsoon winds bring heavy rainfall to the windward side (the western side) of the Western Ghats, resulting in lush forests and high precipitation. However, these winds lose most of their moisture by the time they cross over the mountains, leaving the leeward (eastern) side dry with very little rainfall. This region often faces acute water shortages and sparse vegetation, making it a classic example of a rain shadow area in India.
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| Month | Jan | Feb | Mar | Apr | May | June | Jul | Aug | Sep | Oct | Nov | Dec |
| Station A (sea level) | ||||||||||||
| Temperature (°C) | 24.4 | 28.4 | 20.7 | 29.3 | 30.0 | 29.9 | 29.8 | 27.8 | 26.9 | 26.3 | 25.1 | 24.8 |
| Rainfall (cm) | 0.1 | 0.1 | 0.5 | 0.6 | 3.8 | 26.6 | 29.6 | 30.5 | 26.5 | 11.9 | 1.1 | 0.2 |
| Station B (800 m above sea level) | ||||||||||||
| Temperature (°C) | 8.1 | 8.9 | 15.6 | 20.1. | 25.2 | 24.3 | 24.1 | 22.7 | 20.6 | 18.4 | 14.1 | 9.6 |
| Rainfall (cm) | 0.4 | 0.3 | 0.3 | 1.1 | 1.3 | 3.2 | 7.7 | 1.3 | 5.8 | 0.7 | 0.4 | 0.3 |
- Calculate the annual range of temperature of Station A Suggest a reason why the range is small one.
- Which of the two Stations has the lower temperature? Why?
- Calculate the annual rainfall of Station B.
Given below is the climatic data of a station. Study the table and answer the questions that follow:
| Month | J | F | M | A | M | J | J | A | S | O | N | D |
| Temperature in Degree C. | 13.7 | 16.6 | 21.6 | 25.5 | 33.2 | 33.5 | 30.8 | 29.8 | 29.2 | 25.5 | 19.6 | 15.2 |
| Rainfall in cms. | 2.5 | 2.0 | 1.5 | 0.9 | 1.5 | 7.5 | 17.8 | 18.5 | 12.5 | 1.0 | 0.2 | 1.5 |
(i) Calculate the annual range of temperature.
(ii) What is the total rainfall experienced by the station?
(iii) Which is the driest month?
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