longitudinal section A-A and Figures 7-11 show temperatures in five 

 cross -sections across the coastal zone. 



The following phenomena are notable in the temperature 

 sections. 



The sharp layering of warm water over cold water in the south. 



The compression of the warm water against the Alaskan Coast of 

 the Chukchi Sea. This is probably due to geostrophic forces. 



The cooling at the surface toward the north, due mainly to the 

 contact with ice. This process generally tends to form a warm 

 nose in the temperature profile which eventually is nearly elimin- 

 ated at the most northerly stations. 



The disappearance of the underlying cold layer near Station 60 . 

 This is believed due to the flow of this layer down slope to a 

 deeper equilibrium level in the Arctic Basin. 



The turning of the warm water into the Beaufort Sea and its travel 

 eastward to near the limits of the survey area. 



The descent of the warm layer to mid-depth in the Beaufort Sea 

 beyond the 10-fathom line. 



The presence of mesostructure in the temperature profiles is 

 usually not evident on these plots because the contour interval is too 

 large to resolve it. These phenomena will be evident in the individual 

 station profiles which will be presented next. 



At the beginning of Figure 6 at Station 46 (Fig. 12) one sees 

 the warm water riding on the top of cold, denser, water with a very sharp 

 interface between the two. The upper layer is mixed at 6.3°C, and there 

 is little or no mesoscale structure in the water column. It should be 

 noted that the plotting program has automatically labeled the curves 

 T, S, SV, ST for temperature , salinity, sound velocity and sigma-t and 

 has marked the corresponding surface bucket measurements, if they 

 exist, with small T, S, V, and S. If they do not exist, these marks are 

 clustered at the left zero-depth margin. 



It may also be noted that temperature curve closely represents the 

 sound velocity profile. It will be seen that this is usually true except 

 near the surface when the salinity becomes very low. The pressure effect 

 is noticeable when the deeper water is isohaline and isothermal. There 

 are a few cases where the salinity makes interesting modifications to 



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