Brightness Temperature T, (K) 
  
   
     
   
  
  
  
  
  
  
  
700 HTTTTTTTFETTTTTTRTETTTTTTTTE FETTE FTT TTE TTTTTTTTS FTT TTE TTTTTTTTE TTTTTTTTTTTTTI 
Lp. ad 3 
224 [rv --- J ae 
- PT. = 
202 M 
= PT. 3 = 
190 |--------- EM NM da: 
   
223 
  
203 Mr == : 3 dof VAL Sel SM 
  
  
  
EL bord | 
213 Mei Gra m het Le 
    
Tb b $i 0 
LI 4.01 111 
: 
1 i 
o EELLLLELLEELLLLELLLESLLLELELLLEELLLLLLEI LLL EEE EEE EN 
  
  
  
  
  
  
  
  
1,1.78 1.1.79 1.1.80 1.1.81 3.1.82 1.1.83 1.1.84 1.1.85 1.41.86 1.1.87 1.1.88 
Figure 2. Time series of Ty together with the running annual averages from October 26, 1978 to August 20, 1987 at 
six locations on the Greenland Ice Sheet (cf. Figure 1). The grid spacing of the T, axis is equal to 10 K. The 
numbers on the Ty axis represent average brightness temperatures of the individual time series. 
748 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996 
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