International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXIX-B7, 2012 
XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia 
  
  
  
  
  
  
  
  
  
  
  
  
a. AAFI in 2009 b. AAFI in 2011 c. AAFI in 2010 
  
  
  
iegesd 
   
  
  
  
  
  
  
  
  
d. ASI in 2009 e. ASI in 2010 f. ASI in 2011 
  
  
  
j ; legend 
   
  
  
  
  
  
  
  
  
  
  
  
  
  
  
h. IBD in 2010 i. IBD in 2011 
  
  
  
- as degend 
     
  
  
  
  
  
  
  
  
g. EBD in 2009 k. EBD in 2010 1. EBD in 2011 
Figure 2 the spatial distribution patterns of the annual algae bloom frequency index, algae bloom sustainability index, annual 
initial blooming date and end blooming date in 2009, 2010 and 2011 
The algae bloom sustainability index (ASI) is defined as the region adding one. The first days which is a effective 
difference between the last days and the first days at a monitoring day to find algae bloom at a certain time is called 
certain time to find algae bloom using NDVI in certain water as initial blooming date (IBD) in certain water region. The