p. 31 - 34 ON THE STRUCTURE OF THE SEASONAL THERMOCLINE OFF CONSTANTA Francisc Smocov and Vasile Diaconu Romanian Marine Research Institute Constanta Abstract Several continuous temperature profiles made in 1977 over the Romanian continental shelf revealed, for the first time, the existence of a fine structure with characteristic horizontal space scale of the order of 10-15 km and verticale scales of 2-5 m. Repeated profiling in a fixed point allowed the time evolution of the fine structure to be observed.