. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder. Oceanography Bering Primary production 765 ice is anomalously far south (Fig. 44-1), almost over the shelf break south of the Pribilof Islands. Finally, in early April 1977, only a week later than the pre- vious year, SST was higher (~ C or an estimated C above normal) and the ice cover about 10 percent below the normal 60 percent (Niebauer 1980). Fig. 44-1 shows the position of the section taken across the ice edge that has retreated over the shelf, relative to the position
. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder. Oceanography Bering Primary production 765 ice is anomalously far south (Fig. 44-1), almost over the shelf break south of the Pribilof Islands. Finally, in early April 1977, only a week later than the pre- vious year, SST was higher (~ C or an estimated C above normal) and the ice cover about 10 percent below the normal 60 percent (Niebauer 1980). Fig. 44-1 shows the position of the section taken across the ice edge that has retreated over the shelf, relative to the position of the ice edge at the same time in the previous year. The position of the temperature, salinity, and sigma-t sections (Figs. 44-2a, b, and c) for 1975 is shown in Fig. 44-1 to be far up on the shelf. The ice-edge temperatures are on the order of to — C but they decrease with depth to — to — C at 65-70 m. Farther away from the ice, the sea-surface temperatures reach C. Salinities in the ice are on the order of *^/oo, increasing with depth to °/oo at the bottom, and with dis- tance away from the ice to a maximum of ^/oo. The thermocline, halocline, and hence pycnocline are at 20-30 m, extending throughout the section, although they are most developed at and within the ice edge. All the water found in this cross section is the shelf water (<, -2-10 C) described by Coachman and Chamell (1979). OPEN WATER OPEN WATER. r}}nnnnnn}}}rfn)nn)>}fnnm. ^"^^nrrr^jj^^rrrrrrrrrmrTrrmrrT. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hood, D. W. (Donald Wilbur), 1918-; Calder, John A; United States. Office of Marine Pollution Assessment; United States. Bureau of Land Management. [Rockville, Md. ?] : U. S. Dept. of Commerce, National Oceanic and Atmospheric Administr
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