National Oceanic and
Atmospheric Administration
United States Department of Commerce


 

FY 1979

Circulation and hydrography near Kodiak Island, September to November 1977

Schumacher, J.D., R.K. Reed, M. Grigsby, and D. Dreves

NOAA Tech. Memo. ERL PMEL-13, NTIS: PB-297421/AS, 49 pp (1979)


Conductivity/temperature/depth observations during early September 1977 and from mid-October to early November 1977 near Kodiak Island are presented and discussed. During both periods there was weak, southwestward flow along the outer continental shelf and gyre-like features in the troughs separating the shoal banks. On the inner shelf near the Kenai Peninsula, a well-developed westward flow was present; transport of this flow increased from 0.4 × 106 m3 s−1 in September to 1.0 × 106 m3 s−1 in October. The horizontal and vertical distribution of properties are influenced by both the circulation and the sharply varying bank-trough topography. Tidal mixing over the banks appears to be an important factor, and local upwelling induced by wind events also exerts influence on water structure. The westward-flowing band of low-salinity water off the Kenai Peninsula appears to be strongly affected by freshwater drainage from land.




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