Monday, August 7, 2017

Space1 Heat Index

Space1 highly recommends calculating the weather temperature heat index before conducting any activities. For convenience refer to the provided Chart. For example, if the measured temperature is 92 deg. F. and the humidity is 90 percent, the heat index temperature is 131 degrees.

Online heat index calculator

This equation that gives a very close approximation to the heat index.  However, it was obtained using a multiple regression analysis, and therefore, it has an error of ±1.3°F.

Heat Index = -42.379 + 2.04901523T + 10.14333127R - 0.22475541TR - 6.83783 x 10-3T2 - 5.481717 x 10-2R2 + 1.22874 x 10-3T2R + 8.5282 x 10-4TR2 - 1.99 x 10-6T2R2

T - air temperature (F)
R - relative humidity (percentage)


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