Literatur 
1) Gienapp, H., 1977: Farbmetrische Studien der Elbmündung. 
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Abstract 
First results of chromaticity measurements of sea water as 
sea-truth of remote sensing have already been published by 
the author in previous papers 192 . As follow-up of these 
studies further measurements of the chromaticity coordinates 
of scattering and transmitted light in sea water samples have 
been carried out during a cruise of s.r.v. GAUSS from 29 Sept. 
to 3 Oct. 1977 in the German Bight. 
They have again confirmed the author's opinion of the great 
usefulness of chromaticity measurements of scattered light 
for remote sensing. 
Parameters of particular importance in this connection are 
the chromaticity coordinates of scattered light 
X Y = 
ESI =! 4" 0 iir | 
y X+X%/.+2 X +Y+ Z