INSTRUMENTATION 



1. Pyrbelicoeter - 

 solar intensity 

 (Eppley Laboratory) 



2. Radiometer - Ion, 

 vave and solar 

 radiation; diurnal 

 and nocturnal (Gelr 

 and Dunkle) 



Intensity Range: 0.25 t< 

 1.50 gram-calories per 

 squared per 



Accuracy:* 1.5 percent 

 Wavelength Range: 3,000 

 to 50,000 angstroms 



Paper strip chart 



Paper strip chart 



E-4 



