Question Q6GS1GS1
Explain the mechanism of the Indian monsoon. What role do El-Nino & La-Nina play in its development over the Indian subcontinent?
Main Body
Indian monsoon is a phenomenon of seasonal reversal of winds blowing from ocean to land.
Mechanism of monsoon:
1Differential heating: of land surface & sea surface causes temperature difference.
2Pressure gradient: Tibetan plateau gets heated quickly Compared to sea. (Specific heat of sea is high eg. they tend) It creates pressure gradient.
3Wind blowing: from High pressure (Mascarene high) region in Indian Ocean to mainland fields.
Mechanism of monsoon:
1Differential heating: of land surface & sea surface causes temperature difference. --> LA pressure (tibetan plateau)
2Pressure gradient: Tibetan plateau gets heated quickly. Compared to sea. (Specific heat of sea is high eg. they tend) It creates pressure gradient.
3Wind blowing: from High pressure (Mascarene high) region in Indian Ocean to mainland fields.
Role of El-nino:
1El-nino is warming of central & eastern pacific ocean
2It shifts monsoons of south west indian ocean winds beneath Eastern side.
3Decrease in Rainfall in Indian Plains & increased rainfall on Peruvian Coast.
9[Drought] may set in due to less rainfall.
176 words11 paragraphs
Diagram
Pressure system and temperature differential showing Tibetan plateau influence on monsoon winds
- Clear structure with numbered points
- Explains pressure gradient mechanism well
- Discusses El-Nino effects on Indian rainfall
- Includes diagram for clarity
Topper
Abhishek Singh
Subject & Paper
GS1GS1
Topic
Salient features of World's Physical Geography
Indian monsoon mechanism and its drivers
Differential heating, pressure systems, and wind patterns in monsoon formation
Writing Stats
176
Total words
11
Paragraphs
technical, explanatory
Tone