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PRELIMBIARY REPORT 

 1964 ARCTIC SURVEY - IBS BURTON ISIAHD 



The U. S. Maval Oceanographic Office conducted a general investi- 

 gative study of the East Siberian Sea during the summer of I96U. The 

 oceanographic survey assignment on board the IBS BURTON ISLAM) (A(B-1) 

 •was completed during the period 1 July through 10 October, 



Initially, the proposed survey plans called for work in the East 

 Siberian J Laptev, Barents and Kara Seas, but. • , due to heavy ice 

 conditions and a change in operational commitments it became necessary 

 to concentrate efforts almost entirely in the East Siberian Sea. 



The study area is bounded by 155° east longitude on the vest and 

 Wrangell Island on the east. The northernmost stations vere at 

 approximately Jk** 30 'N latitude, but the majority of stations 

 occupied were below 73**N latitude. 



Areal coverage was attempted using a net of 55 oceanographic 

 stations and three 25-hour crirrent stations. Nineteen additional 

 oceanographic casts were taken during the occupation of the current 

 stations, bringing the total to 74 in the East Siberian Sea. 



Serial oceanographic data were collected using Nansen reversing 

 water bottles. Salinity, dissolved oxygen and nitrogen, inorganic 

 phosphate, pH and turbidity fractions were drawn and analyzed for 

 each depth sampled. 



End: (l) to NAVOCEANO Itr Code 3520/KRN-ncf , ser kOQi-i- 



