(A) 
  
River 
[ EI 
VI values 
  
  
  
.0.2 + — - 
  
941... AM». * - * "0700 T 
NDVI TVI 
  
(B) 
DN values 
  
  
  
  
—$— River 
—B— Sea 
  
  
0 T ' 
GREEN RED IR 
River | 54.7 40.1 22.9 
Sea $74 34.8 15.5 
  
  
  
  
  
Figure 3. Vegetation indexes (A) and spectral DNs (B) over a freshwater area of 12.0257sq km and salt water area of 
136.2918 sq km. 
  
Figure 4. Maximum likelihood Classification images of water bodies on the Nakdong River delta near Pusan in Korea. (A) 
Incursion of salt water from the estuary, see 4 3 above. (B) Dispersion of Nakdong River freshwater influenced by 
neritic current, see # 2 bottom left. (C) Tidal spread inside the Nakdong River, see #1 bottom right. 
346 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996