Stationary Model of Water Movement in a Stratified Strait (Using Bosporus. Istanbul Bogazil, and Other Straits as Examples) (Statsionarnaya Model Dvizheniya Vod v Stratifitsirovannom Prolive (V Primenenii k Bosforu i Nekotorym Drugim Prolivam)

Two-layer water stratification in straits, such as the Bosporus, Bab- el-Mandeb, and Gibraltar, is discussed. Conclusions, based on observed data, are compared with the results of mathematical calculations by considering the position of the interface between the surface and bottom currents, their velocities, slopes and other phenomena. The two opposite currents appear to be active constantly, although the velocity of the bottom current sometimes is extremely small or almost nonexistent. When this occurs, the water-level decrease in the Bosporus, between the Marmara and Black Seas, should exceed 36cm. According to observations and calculations, such cases are rare exceptions and are limited to brief periods. Trans. of Akademiya Nauk URSR, Kiev. Instytut Biologii Pivdennykh Moriv. Trudy, v20 n2 p18-34 1967, by M. Slessers.