Question: If the ambient temperature is 25☌ and a relative humidity is 40%, then find wet bulb temperature? The wet bolb globe temperature equation is follows:Īnother formula is WBGT = 0.7 * Tw + 0.3 * T
Wet-bulb globe temperature is used to estimate the effect of humidity, temperature, sun light and wind speed on humans. Wet Bulb Globe Temperature:It is a type of apparent temperature. It is the ratio of amount of water vapor in the air to the amount of water in the given temperature T is the air temperature which can be measured using a thermometer The formula to calculate the wet bulb temperature is along the lines. As the humidity in the air decreases, the wet bulb temperature will be lesser than the normal temperature.
The wet bulb temperature becomes the noraml temperature only when the air humidity is 100%. Another available tool is an online Dew Point calculator.Įlevation 0-500 feet (0-300 feet in Alaska), 30 in.Įlevation 501-1,900 feet (301-1,700 feet in Alaska), 29 in.Įlevation 1,901-3,900 feet (1,701-3,600 feet in Alaska), 27 in.Įlevation 3,901-6,100 feet (3,601-5,700 feet in Alaska), 25 in.Įlevation 6,101-8,500 feet (5,701-7,900 feet in Alaska), 23 in.Įlevation 8,501-11,000 feet (above 7,900 feet in Alaska), 21 in.Wet bulb is the lowest temperature in air can reach only through evaporation.The wet bulb temperature is the lowest temperature a potion of air can acquire by evaporative cooling only. These can be calculated automatically using Wildland Fire RH Calculator Apps for iOS and Android available for free.Ĭlick here to obtain a full set of tables in PDF form. The following tables calculate Dew Point and Relative Humidity based on the observed wet bulb and dry bulb temperatures and the elevation at the site of the observation.
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