Question Q.15GS1GS1
The tropical Indian Ocean is likely to be in a near-permanent heatwave state. Discuss the factors responsible for the rapid warming of the Indian Ocean along with its multi-dimensional impacts.
Introduction
According to IMO, Indian Ocean has warmed 0.7+°C on average from pre-industrial times.
13 words
Main Body
Factors responsible for rapid warming
1Global warming due to climate change, ocean aerosols more than 3 offed 4*4 emission.
2Changed deep ocean circulation, leading to reduced flow of cold water.
3Warming during Positive Indian Ocean Dipole.
4Effect of El-Niño southern Oscillation.
5Decreased river waterflow due to human use → damming & diversion.
6Closed nature of ocean leads to less water circulation.
7Higher contact with land mass relative to other ocean, conducive heating.
Multi-Dimensional Impact
1Sea level rise intercalification → highly temp leads to thermal expansion of water.
2Distinct fish leading to threat to fisherman livelihood threat.
3Bleaching of coral reefs → 90% projected to disappear by 2070.
4Heatwave in coastal towns → houses 1/5th of population.
5Increased in marine & tropical cyclone (eg) more cyclone in arabian sea backs in recent years.
6Effect on Indian monsoon → more erratic and unpredictable.
Hence warming not only threat to nature but humane policy, used for global climate ocean inline with Paris Agreement.
— Neeraj Trar · AIR 180
173 words3 paragraphs
Conclusion
Hence warming not only threat to nature but humane policy, used for global climate ocean inline with Paris Agreement.
19 words
- Includes quantitative data (0.7+°C warming)
- Identifies multiple factors contributing to warming
- Recognizes role of ocean circulation patterns
- Mentions both local and global phenomena
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Topper
Neeraj Trar
AIR 180
Subject & Paper
GS1GS1
Topic
Salient features of World's Physical Geography
Important Geophysical Phenomena
Indian Ocean warming and heatwave conditions
Writing Stats
205
Total words
3
Paragraphs
analytical, systematic
Tone