i'igure Ca^jtions 



i'igure 1 . A series of charts of the South Atlantic Ocean. 



(a) Distrihution of color of the sea (After Schott) ; 



(b) Distribution of phosphate in mg/m in the upper 

 50-m layer; 



(c) Distribution of plankton organisms, thousands/ 

 liter, in the upper 50-rn layer, (After Hentschel 

 and V/attenberg, 1930); 



(d) Distribution of zooplankton (metazoa) , numbers 

 per 4 liters, in the up"oer 50-m layer (After 

 Hentschel, 1933); 



(e) Distribution of organic gross production in 



summer, g. C/ m /day; and 



2 



(f) Distribution of annual net production, g O/m 



E. Steemann-Nielsen, Galathea Rept., Vol. 1, 

 Pig. 20, pp. 78-79. 



Reference: After National Academy of Sciences, Useful Applicat- 

 ions of Earth-Oriented Satellites, Vol. 5, Ocean- 

 ography, National Academy of Sciences, National 

 Research Council, Washington, DC, 1969. 



Figure 2. Example of spectral variation of backscatter light 

 measured at a flight altitude of 500 ft (WHOI 

 Report, \inpublished) . After the reference given 

 in Eig. 1 . 



8-8 



