The Heat Index is a crucial measurement that combines air temperature and humidity to represent the perceived temperature, often referred to as the "feels like" temperature. This index serves as an important indicator of human discomfort resulting from elevated apparent temperatures.
The IMD has introduced this experimental Heat Index to provide guidance regarding the impact of high temperatures coupled with humidity. By assessing the Heat Index, individuals can better understand the level of discomfort they may experience under prevailing weather conditions.
The calculation of the Heat Index follows a formula similar to those utilized by the National Weather Service and the National Oceanic and Atmospheric Administration (NOAA) in the United States. This formula takes into account both temperature and humidity to accurately estimate the apparent temperature.
The Experimental Heat Index is implemented nationwide across all regions of India. It is particularly integrated into specific projects under the Heat Action Plan for cities such as Bhubaneshwar and Ahmedabad, in collaboration with the National Disaster Management Authority (NDMA) and local health institutes.
The primary purpose of the Heat Index is to provide a more precise understanding of how hot it feels when humidity is factored in with the actual air temperature. This tool is essential for public health and safety, as it advises when additional precautions may be necessary to prevent heat-related illnesses during warm weather.
This article aims to clarify the fundamental aspects of the experimental Heat Index introduced by the IMD, offering essential insights into its operation and its role in mitigating heat-related risks.
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