Class 10 Social Science - ICSE-GEOGRAPHY
Climate of India
The chapter 'Climate of India' explores the factors determining India's tropical monsoon climate, including the mechanism of monsoons, seasons, and rainfall distribution. Students learn about the advancing and retreating monsoons, Western Disturbances, and the El Nino effect. This is a high-scoring and critical chapter for ICSE Class 10 Geography board exams, frequently featuring direct theoretical questions, geographical reasons, and map-pointing related to winds and rainfall distribution.
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Tropical Monsoon Climate
India has a tropical monsoon type of climate because of its location in the tropical belt and the dominating influence of monsoon winds.
Advancing Monsoon
From June to September, moisture-laden South-West monsoon winds blow from the Indian Ocean, splitting into the Arabian Sea and Bay of Bengal branches to bring widespread rainfall.
Retreating Monsoon
From October to November, the monsoon winds withdraw from the subcontinent, causing clear skies and high humidity, popularly known as 'October Heat'.
Western Disturbances
Temperate cyclones originating in the Mediterranean Sea that bring winter rainfall to North-West India, vital for the Rabi crop cultivation.
El Nino
A warm ocean current that develops off the coast of Peru, temporarily replacing the cold current and adversely affecting the Indian monsoon rains.
Important Formulas
Board Exam Info
In ICSE Geography, this chapter typically carries 10 to 15 marks. Common question types include giving geographical reasons for specific climatic conditions (e.g., why Chennai gets winter rain), interpreting climate tables, naming specific wind systems, and identifying rainfall regions.
Frequently Asked Questions
Why does India experience a monsoon type of climate?
India experiences a monsoon climate because its location, wind systems, relief features, and thermal contrasts between land and sea cause a seasonal reversal of wind direction.
Why does Mumbai receive more rainfall than Pune?
Mumbai lies on the windward side of the Western Ghats and receives heavy ороgraphic rainfall, whereas Pune lies in the rain shadow area and receives scanty rainfall.
What is the 'Burst of Monsoon'?
The sudden arrival of the South-West monsoon in India, accompanied by a violent thunder and lightning storm and a sudden drop in temperature, is known as the burst of monsoon.
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