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heat index 酷熱指數
heat index 酷熱指數
heat index formula 酷熱指數公式
heat index formula 酷熱指數公式
c1 = −42.379
c2 = 2.04901523
c3 = 10.14333127
c4 = −0.22475541
c5 = −0.00683783
c6 = −0.05481717
c7 = 0.00122874
c8 = 0.00085282
c9 = −0.00000199
The heat index formula is expressed as,
HI = c1 + c2T + c3R + c4TR + c5T2 + c6R2 + c7T2R + c8TR2 + c9T2R2
where,
· HI denotes the heat index in degrees Fahrenheit
· R denotes the relative humidity
· T refers to the temperature in °F
°F = 9/5 × °C + 32
wind chill index 風寒指數
wind chill index 風寒指數
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