Explain the phenomenon of heat wave. Also, enumerate the conditions favourable for the development of heat waves in India and their associated health impacts.
Introduction
Heatwaves refer to hidden rise in temperature above a specified limit for India, it is 45°C for plains and 30°C for hills.
22 words
Main Body
Conditions favourable in India: 1. Tropical location and hence in summers the sun shines at perpendicular angle. 2. Himalayas prevent any cold winds from Siberia to descend upon the northern plains. 3. Relative less oceanic effect in northern India.
4. The loss of forest due to agriculture. 5. Urbanization has led to creation of heat islands. Health impact: 1. Mortality due to long term exposure to heat, unawareness of mitigation etc. 2. Fainting (loss of consciousness), to dehydration. 3. Respiratory issues due to exhaustion. 4. Increased chance of sunburn, skin cancer etc. Apart from time these are other local & economic impacts as well.
1. Loss of productivity. 2. Loss of crops. 3. Loss of labour hours. 4. Increased expenses on AC, formal transportation etc.
Conclusion
The frequency of heat waves is due to increase due to climate change. It must be declared behind disasters and awareness about how to deal with heat must be spread.
30 words
- Clear definition with specific temperature thresholds
- Identifies geographic factors contributing to heat waves
- Addresses multiple conditions
Hrishikesh Alare
Important Geophysical Phenomena
Heat Waves and Climate
Heat Wave Phenomenon and Indian Climate
177
Total words
1
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