Question 5DiscussGS1GS1

अरब सागर में चक्रवातीय गतिविधि में वृद्धि के लिए उत्तरदायी कारकों पर चर्चा कीजिए। (उत्तर 150 शब्दों में दीजिए) / Discuss the factors responsible for increased cyclonic activity in the Arabian Sea. (Answer in 150 words)

Introduction

According to IMD, since 1950, the frequency of total cyclones in Indian in Arabian Sea has increased to 35-40%.

19 words

Main Body

Factors responsible:

1. Increased SST Rise - sea-surface temperature due to global warming, 1.1°C since 1900s; [illegible] maritime heatwaves (cumulus); cyclone bipolarity stayed for (17 days); provides moisture for long days

2. Increased temperature - more evaporation; more instigation

Factors continued:

3. More ionization

4. More ionization in Arabian - more cyclones

5. Western disturbances - are seducing - leading to more cyclones

6. Increasing stratification - less mixing of layers of sea

7. Influence of lead rivers flowing in Arabian Sea, i.e. Bay of Bengal - lack of cold warming

Results:

1More cyclonic storms

2Storm surges

3Displacement

4Rapid landfall - cloud burst - urban flooding

— Kiran Kamate · AIR 53

110 words2 paragraphs

Conclusion

Thus, the SST of Arabian Sea needs to be monitored for better assessment of cyclone EWS.

16 words

Diagram

Graph showing increase in cyclones from 1950s to 2020s, ranging from approximately 25-40%

Uses IMD data
Quantifies the increase (35-40%)
Includes specific temperature rise figure (1.1°C)
Discusses mechanism of cyclone formation

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Topper

Kiran Kamate

AIR 53

Subject & Paper

GS1GS1

Topic

Important Geophysical Phenomena

Cyclones and tropical storms

Increased cyclonic activity in Arabian Sea

Writing Stats

145

Total words

Paragraphs

Linked PYQ

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