bottonij the velocity decreasing with increasing depth. Current values 

 obtained by direct measurement are absolute, and higher than the relative 

 values obtained by dynamic riGthods, Both methods indicated tho same water 

 transfer, noiiioly, from the Pacific north through the Bering and into tho 

 Arctic through Borir^ Strait, 



Direct current moasuromonts taken for a 21-hoar period at Station 

 45 in Boring Strait gave a mean water velocity from top to bottom of 0,5 

 knot setting north. Currents varied from 0,5 to 0,7 knot during the 

 observations but maintained a constant direction and showed little change 

 of intensity with depth. Considering uniform velocity across Bering Strait 

 at this point, its width and mean depth, tho above velocity corresponds to 

 a flow of 0.5 cubic nautical mile per hour. This flow is above 3% of that 

 for tho Gulf Stream at its narrowest point off the coast of Florida as 

 calculated by Wust (1930), It is eq.uivalent to a river 15 times as large 

 as tho Mississippi which has an average hourly discharge of abcat 0,03 cubic 

 nautical mile. 



Similar current measurements wore nndc for a nine-hour period at 

 Station 70 between St. LaT/rcnce Islond o.nd Siberia, The current at this 

 place averaged 1,3 knot sotting consistently about 15° east of north. 

 The mean current was 0,26 knot greater at 5 meters th".n at 35 meters. 

 Biroct current measurements were made at stations 82 and 83 during and 

 just after a heavy wind. The values were abnormally high for this region 

 as was shown by the uniform decrease as the storm abated at the end of tho 

 observation period. Currents based on a 24-hour period of observation at 

 Station 94 off Cape Mohican, Nunivak Island, were chiefly tidal in nature 

 and followed tho shore lincc The currents reversed direction with a change 

 of tide but showed a not transfer of water to the nor Lh, Currents at 

 Station 105 at the west anchorage of Bogoslof- Island v/cre quite constant 

 at 0,8 knot sotting north'jost. Those currents can not be taken as a true 

 measuro of those in deep water a short distance offshore, as the water 

 undoubtedly increased in velocity and modified its direction to conform 

 to the bottom contour as it flov/od over the shallov/ shelf surrounding the 

 island. 



The surface currents obtained by both direct irsasurements and / 



dynamical methods agree well in direction with ihose outlined by the ' 



"United States 0'oast Pilot" - Alaska - Part II (1931) . The magnitudes in 

 a number of oases differed considerably from values reported by previous 

 observers based on methods of a move or less qualitative nature. Prior 

 to tho cruiso of tho CHELAM, subsurface currents for most of the area 

 investigated had never boon determined. 



Dissolve d Oxygen and Minor Constituents , The data for dissolved 

 oxygen and minor constituents are given in Table I, section b. Consideririg 

 the horizontal distribution at the surface for the shallow region extending 

 from tho Pribilof Islands to the Arctic Ocean, ozygen concentrations v^ere 

 low, less than 0,5 milligram atom per kilo along the Alaskan coast, aui 

 high, greater than 0,9 milligram atom per kilo corresponding to about 

 150 per cent saturation along the Siberian coast in the vicinity of East 

 Cape, The maximum value observed was 0,972 mg.at, (153 per cent saturation) 

 at station 40 in the northern part of Bering Strait, The concentration for 

 most of the central part of the region was approximately equal to the 

 saturation value for the water. Phosphate concentration increased from 

 less than 0,5 microgram atom per kilo on the eastern side of Bering Soa 



- 20 - 



