Upper ocean modeling in a coastal bay

摘要: A numerical model of the upper ocean is developed to study dynamics and thermodynamics Baie des Chaleurs (Gulf St. Lawrence, Canada). The has primitive equation with two active layers embedded a Niiler-Kraus (Niller Kraus, 1977) type mixed layer at top. Proper open boundary conditions forcing functions are constructed. eddy-permitting, horizontal grid spacing 2×4 km. An Arakawa C scheme used. Forced by observed wind, atmospheric heat fluxes, river runoff, appropriate remote (in particular, Gaspe Current, (GC)), demonstrates that mean cyclonic general circulation pattern in bay consequence intrusion GC. strength depends on resultant stress prevailing westerly winds opposing GC intrusion. In layer, fluxes thermal advection play key role balance eastern part bay. local fluctuations controlled wind induced divergence. entrainment (and its corresponding flux) important western changes depth timescale more than week. Varying intensifies flow variations improves simulation results as compared observations.