. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder . Figure 6-8. Distribution of temperature (°C) on a^ = 21 in September 1976. at that time are summarized on vertical sections in Fig. 6-10. The entire water column was at the freezing point, or about — C. Density differences were due to salinity differences, and were small with variations less than one a^ unit. Since observations did not extend into the eastern portion of the sound because that region was ice free during the field work, conditions there remain uncertain, but they were p
. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder . Figure 6-8. Distribution of temperature (°C) on a^ = 21 in September 1976. at that time are summarized on vertical sections in Fig. 6-10. The entire water column was at the freezing point, or about — C. Density differences were due to salinity differences, and were small with variations less than one a^ unit. Since observations did not extend into the eastern portion of the sound because that region was ice free during the field work, conditions there remain uncertain, but they were pro- bably similar to those observed in the western sound. The western sound was characterized by weak hori- zontal and vertical density gradients. Density was about lower in the eastern than in the western portion, and lower by about the same amount near the bottom than near the surface. The two-layered structure which was present during summer had disappeared, its place having been taken by more or less uniform and weak vertical density stratification. Convective cooling and ice formation had created vertically uniform temperatures at the freezing point, but some vertical salinity, hence density, stratifi- cation remained. CURRENT OBSERVATIONS Current measurements were obtained from taut- wire moorings, as time series from anchored vessels and as instantaneous vertical profiles from anchored vessels. Statistics of the taut-wire mooring current measurements are given in Table 6-2. Five time-series current profiles were obtained at anchor stations along a transect south of Nome during summer 1976 (Fig. 6-14). While these were of too short duration to use in estimating mean flow, four of the five (22, 24, 25, and 26) were long enough to allow averaging out of the tidal signal. Moreover, they provide the only vertical distributions of current obtained in the region south of Nome. They are summarized as vector-averaged currents at each depth and presented along with vect
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