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Springer Proceedings in Earth and Environmental Sciences

ISSN:2524342

2023

10.1007/978-3-031-47851-2_7

VJIBMY

From June 7 to July 2, 2022, for the first time, information on the fluctuation characteristics of the flow in the stratified layers of the Black Sea was obtained with data on the vertical distribution of oxygen, chlorophyll A and turbidity at depths up to more than 900 m on cruise 122 of the R/V Professor Vodyanitsky. Studies in this region included obtaining the dependences of the vertical turbulent diffusion coefficient K on the buoyancy frequency N and on the depth z according to the pulsation characteristics of the flow. Calculation results were compared with the results of a 1.5D vertical turbulent exchange model, as well as the hydrophysical features general analysis of the region under study. Data analysis showed the presence of several layers with different characteristic features of mixing in them. The obtained power-law approximations of the dependences K ≌ A · Nα in these layers showed good convergence with the model ones in the power part. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.

1.5D model, Black Sea, Buoyancy frequency, Energy dissipation, Field measurements, Measuring complex, Stratified layer, Turbulence models, Vertical turbulent exchange

2024-02-01 12:26:38