Hotspots For Heat Stress In A Changing Climate

Download or read book Hotspots for Heat Stress in a Changing Climate written by Elfatih a. B. Eltahir and published by Elfatih Eltahir. This book was released on 2022-08 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The global temperature of Planet Earth is rising due to anthropogenic changes in the chemical composition of the atmosphere. During the last century the global surface temperature warmed by about one degree centigrade. This trend is projected to continue into the future, with a rate that will reflect the level of mitigation efforts pursued by the global society during the coming decades. The rising temperature will increase the level of heat stress experienced by people around the world. The space-time distribution of future heat stress will depend on the current distribution of surface temperature, as well as the rate by which the temperature is projected to change. This current distribution of temperature reflects to a large degree the geography of low-lying areas (valleys), proximity to water bodies, prevailing wind directions, and land use (e.g. irrigation). While most discussion of heat stress tends to focus on dry-bulb temperature, which is the regular temperature as measured by thermometers and sensed by satellite radiometers. However, humans react to variation in their skin temperature. The latter reflects not only the regular temperature, but also the level of humidity. The wet-bulb temperature, measured by wet-bulb thermometers, is the best approximation of the human skin temperature under well-ventilated condition. Hence, in this book we choose to focus on the wet-bulb temperature as a measure of heat stress.