GENERALIZED HYDRODYNAMIC ADJUSTMENT METHO D (GHDAM)

Modeling the ocean climate from historical data on temperature (T) and salinity (S) brings up the problem associated with the absence of obs ervations in some regions of the ocean or their statistical unreliabil ity. Traditional approaches to solving this problem are the use of met hods of objective interpolation and smoothing of the fields T and S in the ocean area. A generalized hydrodynamic adjustment method (GHDAM) is presented in this paper. Unlike the above statistical methods, it i s based on a model of the ocean general circulation and allows the rec onstruction of T- and S-fields in unobserved areas and their retention in the initial form for the areas statistically provided with observa tions. To obtain balanced fields of temperature, salinity, and current s in the overall area of the ocean, model computations are performed w ithin the diagnosis-adjustment regime until the system arrives at a qu asi-stationary state. Results of the first numerical experiments carri ed out using the model that illustrate the efficiency of the GHDAM in reconstructing hydrophysical fields of the ocean for two regions of th e North Atlantic are cited.