variation 
mination. 
The Scanning mic 
will serve to develop tl 
surface 
temperature, sea ice and o 
S, and atmospheric Corrections for 
an operational oceanographic satellite. 
Development requirements 
ZEV EX [ES 
Luminescence 
The tollowing discussion of luminescence ig taken largely from 
Watson and Hemphill (1976). 
Luminescence is the 
excited by external Stimuli, 
chemical or mechanic 
is an airborne electro-optical devi 
radiometer 
human eye. A prototype FLD, i the dynamics of 
water currents in the San Franci | Was sensitive to the lumi- 
nescent dye, rhodamine WT, in concentrations of legs than 5 parts per 
billion (ppb) 
Airborne tests of 
a redesigned FLD, featuring an order of magnitude 
improvement in sensitiv 
ity, permitted measurement of differences in the 
luminescence of trees growing in soils containing geochemically anoma- 
lous concentrations of copper (near Denver, Colorado) and molybdenum 
(near Gardnerville, Nevada 
byı In tests near Denver, 
non-stressed treeg tended t 
Ng periods when cloud cover 
was 10 percent or less; 
contrast was insignificant when 
cloud cover exceeded 10 percent. In other airborne tests, the FLD 
distinguished luminescing phosphate rock and gypsum from sandstone and 
siltstone near Pine Mountain, California; dispersal of oi] in a natural 
seep from uncontaminated seawater in the Santa Barbara Channel; cattle 
; and paper and 
in eastern and central Florida. 
in most cases, 
orrected for wavelength 
detector sensitivity, and solar illu- 
lts with the luminescence of a 
the luminescence of the material may be 
in spectrometer Source, 
By comparing these resu 
rhodamine WT dye standard, 
  
  
  
  
   
  
      
   
  
  
  
  
  
     
   
   
      
      
     
   
   
    
    
    
   
  
     
       
    
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