On Jan 16, 2006, at 6:16 AM, Merlyn wrote:
Doesn't have to total to 100% IR, Visible, and UV do not cover the entire EM spectrum, the sun puts out energy over a very broad range of frequencies.
Sure it does. Look at the table again.
Percent solar constant at aircraft altitude: Lambda (nm) Cum % % Range 0 - 400 8.725 8.725 UV 400 - 700 46.879 38.154 Visible 700 - 100000 99.999 53.120 IR Derived from page 18-10 of the 74th Edition of The CRC Handbook. Horace Heffner
