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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Wet-bulb globe temperature ： ウィキペディア英語版 Wet-bulb globe temperature The wet-bulb globe temperature (WBGT) is a composite temperature used to estimate the effect of temperature, humidity, wind speed (wind chill), and visible and infrared radiation (usually sunlight) on humans. It is used by industrial hygienists, athletes, and the military to determine appropriate exposure levels to high temperatures. It is derived from the following formula: :$\backslash mathit\; =\; 0.7T\_w\; +\; 0.2T\_g\; +\; 0.1T\_d$ Where * Tw = Natural wet-bulb temperature (combined with dry-bulb temperature indicates humidity) * Tg = Globe thermometer temperature (measured with a globe thermometer, also known as a black globe thermometer) * Td = Dry-bulb temperature (actual air temperature) * Temperatures may be in either Celsius or Fahrenheit Indoors, or when solar radiation is negligible, the following formula is often used: $\backslash mathit=0.7T\_w\; +\; 0.3T\_g$ ==Uses== The American Conference of Governmental Industrial Hygienists publishes threshold limit values (TLVs) that have been adopted by many governments for use in the workplace. The process for determining the WBGT is also described in ISO 7243, Hot Environments - Estimation of the Heat Stress on Working Man, Based on the WBGT Index. The American College of Sports Medicine bases its guidelines on the intensity of sport practices based on WBGT. In hot areas, some 〔Army Technical Bulletin Medical 507 and Air Force Pamphlet 48-152(I) 7 March 2003〕 US military installations display a flag to indicate the heat category based on the WBGT. The military publishes guidelines for water intake and physical activity level for acclimated and unacclimated individuals in different uniforms based on the heat category. The heat index used by the U.S. National Weather Service and the humidex used by the Meteorological Service of Canada, along with the wind chill used in both countries, are also measures of perceived heat or cold, but they do not account for the effects of radiation. AccuWeather, a commercial weather forecasting company, offers a product known as the "RealFeel" temperature that purportedly takes radiation into account (presumably by approximation, since American weather observation systems do not measure solar radiation directly); the RealFeel formula is a proprietary trade secret. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Wet-bulb globe temperature」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.