lable 
first 
ed to 
nces, 
ntific 
;, the 
ze of 
e the 
life, 
The 
s for 
| key 
  
OPTICAL STATES OF AQUATIC ECOSYSTEMS IN REMOTE SENSING 
A. M. Nikanorov 
G. P. Garbuzov 
B. L. Sukhorukov 
Hydrochemical Institute 
198, Stachki pr. 
Rostov-on-Don 344104, Russia 
ISPRS Commission VII / Working Group 8 
ABSTRACT 
Optical radiation emanating from water reflects with high degree of certainly the general ecological state 
of water body determined by the set of physical, chemical and biological parameters. The use of 
emanating radiation only for determination of optically active ingredient concentration (ohvtoolankton 
chlorophyll "a", suspended mineral and dissolved organic matters) limits the informative volume of 
remote data considerably. In a model experiment with the artificial aquatic ecosystems a remote sensing 
spectrometric survey was made synchronously with the determination of hydrochemical and 
hydrobiological parameters. The anthropogenic impact by addition of Cu and Hg compounds was 
modelled in the ecosystems. The processes of ecosystems adapting to the pollution effects were 
considered on the basis a notion of "optical state of an ecosystem". Such approach permitted to 
differentiate well a state of the ecosystems subjected and non-subjected to pollution. A designed scheme 
for the processing of remote sensing information is used when analyzing spectrometric data obtained 
from a board of the observation aircrafts at the different water bodies of Russia. 
119