percent illumination aneroid barometer wind belts daylight hours heat, humidity, pressure trade winds 70 degrees south state of matter centripetal force noon sun altitude solid, liquid, gas magnetic field autumnal equinox evaporation polar air mass 23.5 degrees S and N gas to solid axis / orbital plane 45 degrees N liquid to gas cyclones direct sun rays gas to liquid anticyclones solar angle 90 degrees latent heat of vaporization clockwise / counterclockwise watts/sq. meter 540 cal/g 80 cal/g saturation 1350 w/m2 water vapor dewpoint ultraviolet radiation & 
(percent illumination; aneroid; barometer wind belts daylight hours heat, humidity)
percent illumination
aneroid
barometer wind belts daylight hours heat, humidity