Explain the concept of ‘heat index’ and its role in assessing heatwave severity. How does the rise in night-time temperatures amplify the adverse effects of heatwaves on human health?
Kartavya Desk Staff
Topic: Disaster and disaster management
Topic: Disaster and disaster management
Q6. Explain the concept of ‘heat index’ and its role in assessing heatwave severity. How does the rise in night-time temperatures amplify the adverse effects of heatwaves on human health? (10 M)
Difficulty Level: Medium
Reference: IE
Why the Question: Many parts of India continued to swelter over the weekend, with the rising mercury showing no signs of a let-up. According to the India Meteorological Department (IMD), there is a high probability of heatwave conditions in isolated places in Odisha during March 13-17 Key Demand of the Question: Explain the concept of heat index and its role in assessing heatwave severity, followed by discussing how rising night-time temperatures amplify heatwave impacts on human health. Structure of the Answer: Introduction: Define the heat index briefly and highlight its significance in measuring heat stress. Body: Concept of heat index and its role in assessing heatwave severity: Explain how the heat index combines temperature and humidity to assess heat stress; mention its utility in forecasting alerts and guiding public health interventions. Impact of rising night-time temperatures on heatwave severity: Explain how persistent high night temperatures hinder body recovery, increase mortality risks, worsen urban heat island effects, and strain energy systems. Conclusion: Emphasize the need for integrating heat index-based forecasting with urban cooling strategies to strengthen India’s heatwave mitigation framework.
Why the Question: Many parts of India continued to swelter over the weekend, with the rising mercury showing no signs of a let-up. According to the India Meteorological Department (IMD), there is a high probability of heatwave conditions in isolated places in Odisha during March 13-17
Key Demand of the Question: Explain the concept of heat index and its role in assessing heatwave severity, followed by discussing how rising night-time temperatures amplify heatwave impacts on human health.
Structure of the Answer:
Introduction: Define the heat index briefly and highlight its significance in measuring heat stress.
• Concept of heat index and its role in assessing heatwave severity: Explain how the heat index combines temperature and humidity to assess heat stress; mention its utility in forecasting alerts and guiding public health interventions.
• Impact of rising night-time temperatures on heatwave severity: Explain how persistent high night temperatures hinder body recovery, increase mortality risks, worsen urban heat island effects, and strain energy systems.
Conclusion: Emphasize the need for integrating heat index-based forecasting with urban cooling strategies to strengthen India’s heatwave mitigation framework.