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Sun
Thermal Model

Universal Thermal Climate Index, http://www.utci.org/

Inputs

NameIDDescriptionType
TemperatureTaAmbient Temperature (C)Number
Relative HumidityRHRelative Humidity (%)Number
Wind SpeedWspWind Speed (m/s) 10 m above ground levelNumber
Diffuse RadiationDifRadDiffuse Radiation (W/m2)Number
Direct RadiationDirRadDirect Radiation (W/m2)Number
Sun ElevationSunhSun Elevation Angle (deg)Number
Temperature ContextTCxtAverage Surface Temperature Context (C)Number
Street WidthWstAverage Street Width (m)Number
Street HeightHstAverage Street Height (m)Number
Body AbsorptionBodyAClothes Solar Absorption (0.2 for White - 0.9 for Black)Number
Ground ReflectanceGrRefGround Reflectance (0.1-0.3)Number

Outputs

NameIDDescriptionType
UTCIUTCIUniversal Thermal Climate Index (C) < -40 = -5 -40 to -27 = -4 -27 to -13 = -3 -13 to 0 = -2 0 to 9 = -1 9 to 26 = 0 26 to 28 = 1 28 to 32 = 2 32 to 38 = 3 38 to 46 = 4 > 46 = 5Number
CondCondCondInteger

Video Tutorials

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