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प्रश्न
Give an account of the distribution of annual rainfall in India.
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उत्तर
The average annual rainfall of India is 110 cm. Regional variations in the distribution are found due to differences in relief of the country. Rainfall is unevenly distributed throughout the country. India can be divided into the following rainfall regions:
- Areas of Heavy Rainfall (more than 200 cm annually):
- Western Coast: Coastal regions like Kerala, Goa, and Maharashtra receive heavy rainfall due to proximity to the Arabian Sea.
- Western Ghats: The Windward side, especially Konkani and Malabar, experiences high rainfall due to orographic lifting.
- Northeast India: States like Meghalaya, Assam, Nagaland, and Manipur receive extremely high rainfall. Mawsynram and Cherrapunji in Meghalaya are among the wettest places on Earth.
- Areas of Moderate Rainfall (100-200 cm annually):
- West Bengal, Orissa, Bihar, Eastern Uttar Pradesh, and Madhya Pradesh experience moderate rainfall.
- Coastal Tamil Nadu: Receives moderate rainfall from the northeast monsoon (October–December).
- Areas of Very Little Rainfall (less than 50 cm annually):
- Western Rajasthan: The Thar Desert receives less than 250 mm of rainfall annually.
- Jammu and Kashmir: The Leh-Ladakh region receives very little precipitation, mostly in the form of snow.
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संबंधित प्रश्न
Mention the geographical reason for the following:
Western Rajasthan receives no rain from the Arabian Sea branch of the South West Monsoon winds.
Give reasons for the following:
When the Malabar Coast is receiving heavy rainfall in July, the Tamil Nadu coast is comparatively dry.
Re-arrange the ten stations in two different sequences:
(i) According to their distance from the equator.
(ii) According to their altitude above mean sea-level.
The Coromandel coast has more rainy months but less rainfall than the Konkan Coast. Why?
India is known as the land of the endless growing Season. Explain.
The North East Monsoons bring almost no rain to most of India.
Study the table given below and answer the questions that follows:
| Station | Months | J | F | M | A | M | J | J | A | S | O | N | D |
| A | Temperature in °C | 12.7 | 15.1 | 22.1 | 31.8 | 37.2 | 39.1 | 37.3 | 33.4 | 28 | 26.7 | 16.1 | 13.6 |
| Rainfall in cms | 2.1 | 2.3 | 1.0 | 0.9 | 1.5 | 5.6 | 18.3 | 18.9 | 15.1 | 0.6 | 0.3 | 1.8 | |
| B | Temperature in °C | 23.1 | 24.8 | 26.5 | 29.3 | 32 | 32.8 | 33.1 | 32.1 | 30.5 | 29.3 | 28.7 | 26.1 |
| Rainfall in cms | 15.3 | 10.1 | 0.3 | 0.1 | 1.3 | 4.5 | 6.1 | 10.2 | 10.5 | 20.1 | 16.8 | 19.0 |
(a) Calculate the annual rainfall in station A.
(b) What is the annual range of temperature in station B?
(c) Name the winds that bring most of the rainfall to station B. State one reason for your answer.
Name two types of cyclonic systems that affect India and two areas that receive rainfall from these systems.
In India, 85% of the rain is received from the ______.
The average rainfall of India is about:
