1.2 Principle meteorological factors Temperature Fahrenheit(F),Celsius(C),Kelvin Celsius =(Fahrenheit-32)x5/9 Kelvin Celsius 273.16 Humidity Absolute humidity a(mass/volume) Relative humidity actual water vapor P/saturation vapor P at T Dew point temperature Specific humidity1.2 Principle meteorological factors • Temperature Fahrenheit (F), Celsius(C), Kelvin Celsius = (Fahrenheit – 32) ×5/9 Kelvin = Celsius + 273.16 • Humidity Absolute humidity a (mass/volume) Relative humidity = actual water vapor P / saturation vapor P at T Dew point temperature Specific humidity …