2. A substantial "ground truth" program of measurement must be 

 instituted promptly which is primarily aimed at the understanding of the 

 causes and interpretation of ocean color, and how this is degraded by 

 atmospheric scattering and by surface, waves, foam and glitter. This 

 must be so planned that meaningful correlations will come from the data 

 acquired during the experimental orbital missions. 



SUPPLEMENTAL REFERENCES 



Oceanography from Space . Ed, by G. C. Ewing. 

 Proc. of Conf. on The Feasibility of Conducting 

 Oceanographic Explorations from Aircraft, 

 Manned Orbital and Lunar Laboratories, Woods 

 Hole, Mass., 24-28 Aug. 1964. 



Oceans from Space . Ed. by P. C. Badgley, 



L. Mlloy and L. Chllds. Proc. of Symposium 



on Status of Knowledge, Critical Research Needs, 



and Potential Research Facilities Relating to the 



Study of the Oceans from Space, Houston, Tex., 



Gulf Pub. Co. , 1969. 



Bailey, J. S. and P. G. White, (1969), Remote 

 sensing of ocean color, Advances in Instrumentation , 

 Vol. 24, Pt. 3, NASA Accession Number A70-18592. 



Vlll 



