Boine, Judith 
  
Gum, tom * a, TC uet a, TC S a, (4) 
b, = =b,, + e x Au * COS 8 LA (5) 
ay absorption of water [m !] 
da40nm absorption of yellow substance at 440 nm 
av" specific absorption of yellow substance [nr] 
C nia concentration of chlorophyll a [ugI! ] 
aph* specific absorption of phytoplankton [m?mg ‘1 
er concentration of tripton [mgI' ] 
an" specific absorption of tripton [m?g '! ] 
bow backscattering coefficient of water [m™] 
Dppn* specific backscattering coefficient of phytoplankton [m2mg *] 
bp" specific backscattering coefficient of tripton [m?g ! ] 
3.2 Determination of the backscattering coefficient 
The total backscattering coefficient could not measure directly. For this reason it will be determine by change of 
equation (3) (Lindell et al. 1999). 
R(0+)* a 
! QI RO") S 
The backscattering coefficient of water and phytoplankton were taking at the Excel program Biopti of Hoogenboom 
(without year). From this follows with equation (5): 
b,,, =b, boa 7 Don (8) 
Refer to Lindell et al. (1999) specific backscattering coefficients were determined through: 
  
* b, h 
C MZ (9) 
* b tr 
b,, = T | Q0) 
| We thanks Arnold Dekker and Erin Hoogenboom for the use of the Excel program Biopti. 
  
200 International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B7. Amsterdam 2000. 
  
  
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