. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder . Middle Shelf t Outer Shelf t Oceanic 22-23 Feb 1978 Figure 4-9. Temperature (°C) and salinity (°/oo) across the shelf in February 1978. This section is from southeast of the Pribilofs toward Cape Newenham. In the outer domain the deeper water is warmer, but more saline and therefore denser, than the shallower water. Melting ice in the middle shelf can also cause stratification during the winter, but inshore within the coastal domain mechanical stirring keeps the water column well mixed.
. The Eastern Bering Sea Shelf : oceanography and resources / edited by Donald W. Hood and John A. Calder . Middle Shelf t Outer Shelf t Oceanic 22-23 Feb 1978 Figure 4-9. Temperature (°C) and salinity (°/oo) across the shelf in February 1978. This section is from southeast of the Pribilofs toward Cape Newenham. In the outer domain the deeper water is warmer, but more saline and therefore denser, than the shallower water. Melting ice in the middle shelf can also cause stratification during the winter, but inshore within the coastal domain mechanical stirring keeps the water column well mixed. In February 1978 we observed (by satellite imagery, see Fig. 5-11, Chapter 5) that ice near Nunivak Island moved about 100 km southeast, into an area previously free of ice. About ten days later we measured hydrographic properties near this ice, which was melting. Away from the ice (~20 km), sea surface temperatures were near 0 C, and temperature profiles were vertically homo- geneous (Fig. 4-10). Within the ice (where water depths exceeded 50 m), however, the water column was stratified in two layers. In the shallow layer temperatures were near freezing (~— C) and the salinity was lower than in the homogeneous water. 27,0 Salinity (%») 40 Temperature (°C) —. ' "—. ' '—r,—' 1 f Q. O a \H Sig Sig^S Sigma-T Figure 4-10. Temperature (°C), salinity (°/oo), and density (kg/m^) profiles near the ice edge in February 1978. Dashed profiles were typical away (>20 km) from the ice or where water depth was less than about 50 m. Solid profiles were typical near the ice where water depth ex- ceeded 50 m. Below the weak pycnocline, salinity and temperature were similar to values away from the ice. The decrease of temperature and salinity probably result- ed from ice melting, about 30 cm of ice for Fig. 4-10. The transition
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