The Heat Index is a measure that combines air temperature and humidity to reflect the perceived temperature or "feels like" temperature. It provides an indication of human discomfort due to elevated apparent temperatures.
Why has the India Meteorological Department (IMD) launched an experimental Heat Index?
The IMD has introduced the experimental Heat Index to offer guidance on the impact of high temperatures combined with humidity. This index helps in assessing the level of discomfort people might experience under current weather conditions.
How is the Heat Index calculated?
The calculation of the Heat Index is based on a formula similar to that used by the National Weather Service and the National Oceanic and Atmospheric Administration (NOAA) in the USA. This formula considers both temperature and humidity to estimate the apparent temperature.
What are the color codes used in the Experimental Heat Index, and what do they signify?
● Green: Experimental Heat Index less than 35°C - Conditions considered comfortable.
● Yellow: Experimental Heat Index between 36°C and 45°C - Caution for potential discomfort.
● Orange: Experimental Heat Index between 46°C and 55°C - Extreme caution due to increased discomfort.
● Red: Experimental Heat Index greater than 55°C - Danger as extreme heat conditions are present.
Where is the Experimental Heat Index implemented?
The Experimental Heat Index is implemented nationwide, across all regions of India, including specific projects under the Heat Action Plan for cities like Bhubaneshwar and Ahmedabad, managed in collaboration with the National Disaster Management Authority (NDMA) and local health institutes.
What is the purpose of the Heat Index?
The Heat Index is used to provide a more accurate understanding of how hot it feels when humidity is factored in with the actual air temperature. It serves as a crucial tool for public health and safety, advising when additional precautions may be necessary to prevent heat-related illnesses during hot weather.
These FAQs address the basic aspects of the experimental Heat Index introduced by the IMD, aiming to provide essential information on how it operates and assists in managing heat-related risks.
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