International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B7. Istanbul 2004 
  
  
  
Fig.2. Regional distribution of evaporative fraction over the Western Chinese Loess Plateau derived from 
NOAA/AVHRR data on Oct. 2nd 2002 (6:26AM) 
  
D 1.0 = 0 3.0 4. 0 5.0 mm 
Fig.3. Regional distribution of daily ET over the Western Chinese Loess Plateau derived from NOAA/AVHRR data on 
Oct. 2" 2002 (6:26 AM) 
Table 1. Comparison between observed and estimated daily ET 
  
  
  
  
  
  
  
  
  
Sites Items Jan.6" | Feb.12^ | Mar.7^ | Apr.20" | May.27"^ | Jun.24"^ |Jul.12^ |Aug.27^| Sep.27" | Oct." | Nov.8" | Dec.12" 
Estimated 0.7 1.27 1.92 4.69 2.77 4.5 $21]. 441 2.63 2.59 1.03 0.47 
value 
S niit Observed 0.56 0.86 2.34 3.86 3.14 5.12 5.86 5.36 2.05 2.36 1.26 0.24 
Liujiaxia |value 
reservoir 
Absolute 0.14 | 041 -0.42 0.83 037 | 062 1-065] -0.95 0.58 0.23 -0.23 0.23 
error 
Relative 20 32 22 18 13 14 12 22 22 9 22 49 
error (%) 
Estiamted 0.89 | 1.64 2.06 3.14 3.56 342 | 525 | 281 2.44 2.32 1.22 0.23 
value 
Fengjia Observed 0.74 1.58 1.89 2.66 2.78 3.1 4.68 3.2 3.32 2.37 1.65 0.34 
value 
shan Absolut 
reservoir Sofie 0.15 0.06 0.17 0.48 0.64 0.46 0.57 -0.39 0.88 -0.05 -0.43 -0.11 
error 
Relative 17 4 8 15 19 13 11 14 36 2 35 47 
error (%) 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
1319