at tke moment and to promde geaeraJ cognizance of fch.e problems of tte 

 various, groups involved. The U. S. Navy PfeotograpMc Interpretation Cen- 

 ter (NPIC) was th.e host of a meeting a.t Washmgton, D. C. which was 

 attended by representatives of New York University (NYUlj Woods Hole 

 OceanograpMc Institution fWHOIJa the Office of Naval Research (ONR), 

 David Taylor Model Basin (DTMB) and the U. S, Navy Hydrographic Office 

 (HYDRO). 



The discussion was presided over by Mr. Richard C„ Vetter (ONR). 

 The results and conclusions of tbds conference provided the first link in 

 the chain of events which ended in the successful aerial stereo-photography 

 of the sea. surfa.ce on October 25, 19.54. The Mghlights of this meeting are 

 listed: 



1. A justificatio.n for the missio.n was given by Professor Pier son 

 th.rough a descriptio.ii of the basic theory of sea spectra and a step- 

 by-step el3irLLna.tion of other possible techniques. 

 2o HYDRO expressed ability and. willingness to contour tbie stereo- 

 photos .if they met certain photogrammetric specifications. 

 3o The stereo-baseline (distance between plants) is a vital factor in 

 the contouring of the photos and will have to be resolved. Photo- 

 graphy of one plane from the other was ruled out on grounds of 

 measuring inaccuracy, 

 4s The necessity for a horizontal usiit of measurement four or five 

 times the length of th'.e ATLANTIS provided another uiTLaB.swered 



question. 



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