Buoyant coastal discharge typically forms a current flowing along the coast in the direction of Kelvin wave propagation (hereinafter referred to ass the downstream direction). In this paper the Opposite, upstream penetration of buoyancy-driven current is studied using numerical modeling. Previous models of coastal buoyancy-driven currents repeatedly predicted the upstream spreading While in the field this feature was not commonly observed. The mechanism responsible for the Propagation of buoyant flow along the coast upstream from its source is identified as follows.
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