DIAGNOSTIC COMPUTATIONS OF THE ARCTIC-OCE AN CURRENTS AND SEA-LEVEL VARIATIONS

In order to revise ideas on a character and mechanisms of a supporting large-scale circulation of the Arctic Ocean and on a contribution of various constituents to formation of an ocean current system diagnosti c computations based on a three-dimensional nonstationary ocean model were conducted, Equations of a model were integrated numerically on a grid with a spacing 55.6 km until the solution of a system became stab le in time. New temperature and salinity seasonal data were a basis of the computation of a density constituent of the currents. Flow patter ns of the surface and near bottom currents were obtained. The flow pat terns of the computed surface currents are in a good agreement with th e commonly accepted point of view on the Arctic Ocean. A bottom topogr aphy dependence of the currents is traced near bottom. They attain max imal development in the areas with significant bottom drops. Density f ields play a crucial role in a formation of a level and undersurface c urrents of a deep ocean. Runoff through the main ocean straits were es timated.