Advection Mechanism of Replenishment and Refreshment of the Cold Intermediate Layer According to the Results of Numerical Simulation of Currents in the Black Sea

We present the results of analysis of the advection mechanism of replenishment and refreshment of the cold intermediate layer in the Black Sea. The analysis is based on the investigation of the fields of temperature, salinity, density, currents, and the coefficient of vertical turbulent diffusion obtained in the course of prognostic calculations according to the three-dimensional complete model with seasonally variable external fields in boundary conditions. It is discovered that, parallel with winter convection, the cold intermediate layer in the central part of the sea is also replenished and refreshed as a result of the transportation of cold waters formed in the northwest part of the sea by currents.__________Translated from Morskoi Gidrofizicheskii Zhurnal, No. 6, pp. 17–30, November–December, 2004.