The Determination of Baroclinic Tidal Energy Dissipation and Its Related Diapycnal Diffusivity as the First Step in Estimating the Role of Tidal Effects in the Formation of the Laptev Sea’s Climatic Characteristics
https://doi.org/10.7868/S2073667320040048
Abstract
To determine baroclinic tidal energy dissipation and its related diapycnal diffusivity, we have used a high-resolution version of the 3D finite-element hydrostatic model QUODDY-4, equipped with an indirect means for describing tidal effects. The latters are parameterized in the terms of a corrected (with account for diapycnal diffusion) vertical eddy diffusivity. A diapycnal diffusivity is found from the solution of an auxiliary task on dynamics of internal tidal waves (ITWs). The derived solution shows that the vertical eddy and diapycnal diffusivities have nearby orders of magnitude, that the fields of climatic characteristics in the sea are subjected to quite marked changes due to ITW-induced diapycnal diffusion and that, hence, the conclusion obtained early, concerning an important role of tidal effects in the formation of regional climates of the Barents and Kara Seas remains valid for the Laptev Sea as well.
About the Authors
B. A. Kagan
Shirshov Institute of Oceanology RAS
Russian Federation
Russian Federation
117997, Nahimovsky Pr., 36, Moscow
A. A. Timofeev
Shirshov Institute of Oceanology RAS
Russian Federation
Russian Federation
117997, Nahimovsky Pr., 36, Moscow
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Review
For citations:
Kagan B.A., Timofeev A.A. The Determination of Baroclinic Tidal Energy Dissipation and Its Related Diapycnal Diffusivity as the First Step in Estimating the Role of Tidal Effects in the Formation of the Laptev Sea’s Climatic Characteristics. Fundamental and Applied Hydrophysics. 2020;13(4):39-49. (In Russ.) https://doi.org/10.7868/S2073667320040048
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