Effects of wind on a stratified estuary (CROSBI ID 134959)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Legović, Tarzan ; Gržetić, Zvonko ; Smirčić, Ante
engleski
Effects of wind on a stratified estuary
Before the onset of wind in the Krka Estuary, a sharp halocline extends from 2.5 to 4 m below the surface, separating the upper brackish water layer from the lower marine layer. Strong wind (20 ms-1) induces a titl of the halocine surface so that downwind (5-km wind fetch) the halocine is pushed to 4.6 m below the surface. Wind-driven surface currents induce a vertical gyre within the upper layer and a gyre in the opposite direction in the lower marine layer. As a consequence, the halocline close to the coast on the downwind side is not only deeper but is also steepened. The entrainment of marine water into the upper brackish water layer is intensified on the windward side. The possible role of wind in oxygenating the bottom layer is discussed.
effects of wind ; stratified estuary ; Krka Estuary
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