GNIS feature ID. Sky Valley is a town in Rabun County, Georgia, United States and is nestled in a scenic mountain valley on the northwest slopes of Rabun Bald, Georgia's second-highest peak. As of the 2000 census, the city had a total population of 250.
We've got a measure of distance from the wavelength of the wave, and we've got a measure of time from the frequency. Wavelength is meters per cycle. Frequency is cycles per second. So, multiplying the two gives us meters per second.
Spectral irradiance in wavelength of a surface, denoted Ee,Î», is defined as. where Î» is the wavelength. Irradiance of a surface is also, according to the definition of radiant flux, equal to the time-average of the component of the Poynting vector perpendicular to the surface: where. < â¢ > is the time-average;