Stability and stable modes of coastal fronts |
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Authors: | Nathan Paldor |
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Institution: | Department of Isotope Research , Weizmann Institute of Science , 76 100, Rehovot, Israel |
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Abstract: | Abstract The stability of a single layer, geostrophic front of zero potential vorticity bounded by a vertical coast (wall) is investigated by means of a Rayleigh integral. It is proved that the flow of the density-driven current is stable at all wavenumbers provided the mean velocity of basic flow exceeds fL (where f is the Coriolis parameter and L is the distance between the wall and the free streamline). The frequency of the stable long waves is either zero or super-inertial. |
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