Sun irradiance data at sea level

["Willem-Jan Markerink" <w.j.markerink@xxxxx>]

Hi gang,

For those interested, I have added a chapter on my homepage about the 
irradiance spectrum of the sun at sea level, including a distinction 
between perpendicular sun beams (high noon), and sun light at a low 
angle (afternoon and early morning). Also a nice chart linked on that 
page, but be warned, it is 62kB large....

http://www.a1.nl/phomepag/markerink/mainpage.htm

PS: if I read it right, it is a confirmation of a statement in
Guenter Spitzing's book that sunlight early in the morning and late
in the afternoon contains *relatively* more IR than at high noon. 


--
Bye,

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      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]

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Topic No. 15