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प्रश्न
What is meant by a ‘Rain Shadow’ area?
What is the meaning of a rain shadow area?
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उत्तर १
The leeward side of the hill is called ‘Rain Shadow’ area which remains dry because the winds are blocked by the hills.
उत्तर २
The rain shadow area is the dry region on the leeward side (the side sheltered from the wind) of a mountain range. When moisture-laden winds are forced to rise over mountains, the air cools and condenses to form rainfall on the windward side. As the air descends on the opposite side, it becomes warmer and drier because most of the moisture has already been lost as precipitation. This results in very little or no rainfall on the leeward side, creating the rain shadow area.
A classic example of this is the Western Ghats in India. The monsoon winds bring heavy rain to the windward (western) side, while the leeward side receives hardly any rain and often faces acute water shortages. The rain shadow area tends to have sparse vegetation compared to the lush windward side.
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संबंधित प्रश्न
Mention the different sources of rain in Punjab and Tamil Nadu during the winter season.
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 |
23.1 | 24.8 | 26.5 | 29.2 | 32 | 32.8 | 33.1 | 32.1 | 30.5 | 29.3 | 28.7 | 26.1 |
| Rainfall cm | 15.3 | 10.1 | 0.3 | 0.1 | 1.3 | 4.5 | 6.1 | 10.2 | 10.5 | 20.1 | 16.8 | 19.0 |
- Calculate the annual rainfall experienced by the station.
- Suggest the name of this station, giving a reason for your answer.
- Name the season during which the rainfall is heaviest.
Which type of climate is experienced in the Northern Plains of India? State one main characteristic of this type of climate.
Give an account of the distribution of annual rainfall in India.
Why are Himalayas called perfect climate divide? Explain their two-fold functions in this regard.
Patna receives heavier rain than Delhi.
A cricket match at Chennai (Madras) from October 24 to 28 had to be abandoned because of bad weather. As a student of geography provide an explanation and the technical name of this Season in India, the atmospheric pressure conditions over the Bay of Bengal during this part of the year and the typical rainfall experienced in Chennai (Madras) city.
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 state in India where there is highest rainfall.
The source of the winter rain to Tamil Nadu.
