221 
let us introduce this factor into formula (4), then 
T l § (1 V h)-K(ji) 
BpS(M . 1Q c(Vt) 
or 
^ BqSOO . in c(1g-t) 
V Bg(tL)-KCji) iU 
(e) 
From equation (6), after logarithmation, we shall 
obtain 
the tangent of straight line slope will make it possible 
to find c find, consequently, relative water trasparen- 
cy 0 . 
'The experiment was conducted in the Sea of Okhotsk. 
A fluoresceine solution tainted spot of water sewed as 
an underwater object. To produce it buoys were dropped 
from an aircraft which consisted of foam plastic surface 
floats and weights suspended from them on strings of spe 
cified length and containing packages of uranyn (sodium 
salt of fluoresceine). 
The packages with dye were similar in design to 
well-known floats for mapping of sea currents. When drop 
ped to the water, the buoys were photographed outside the 
hotspot zone using filter 3C-1 and film AC-2. In measu 
Let us use for notation 
ig ao^-i MgK(ji) 
symbol y , then 
y = const - cl 
If we plot the dependence of y on X 
, then 
(a)