Calculation Method of Wet-bulb Temperature on the Region Without Observation Data

10% frequency wet-bulb temperature of recent fi ve years hottest months in summer and it's correspond conditions are important weather design elements.Nearby,because the narrow used scope of wet-bulb temperature,most weather stations stop observing it,so make some diffi cult to plant designing.This article summarize the method of calculating wet-bulb temperature by atmosphere pressure,dry-bulb temperature,relative humidity and average wind speed,according to some humidity parameter formula.