Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Application to the World Ocean of the Theory of Transformation of a Mesoscale Vortex into a Submesoscale Vortex Filament When the Vortex Is Elongated by an Inhomogeneous Barotropic Flow. / Жмур, Владимир Владимирович ; Белоненко, Татьяна Васильевна; Новоселова, Елена Владимировна; Суетин, Б.П.
в: Oceanology, Том 63, № 2, 24.05.2023, стр. 184–194.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Application to the World Ocean of the Theory of Transformation of a Mesoscale Vortex into a Submesoscale Vortex Filament When the Vortex Is Elongated by an Inhomogeneous Barotropic Flow
AU - Жмур, Владимир Владимирович
AU - Белоненко, Татьяна Васильевна
AU - Новоселова, Елена Владимировна
AU - Суетин, Б.П.
PY - 2023/5/24
Y1 - 2023/5/24
N2 - This paper is a continuation of the authors’ research [5]. We apply some aspects of the theory about strong horizontal elongation of large-scale mesoscale vortices in the World Ocean based on the theory ellipsoidal vortices to oceanic conditions. Two areas are considered, characterized by increased eddy manifestation: the Lofoten Basin in the Norwegian Sea and the Agulhas Current area. We also discuss the condition of the Atlantic Ocean and the World Ocean. The main objective of this study is to check the feasibility of the physical conditions for unbounded vortex elongation in the real ocean and estimate the fraction of mesoscale ocean vortices that are elongated into filaments with energy redistributed from the mesoscale to the submesoscale. We estimate the share of vortices in the World Ocean that are strongly elongated. We propose maps of the geographical location of unlimited vortex elongation zones and interpret the results. We also describe the effect of a decrease in the self-energy of vortices due to the tensile action of the background flow. We propose that it is a possible mechanism for energy transfer from the vortex to the flow and a manifestation of the negative viscosity effect.
AB - This paper is a continuation of the authors’ research [5]. We apply some aspects of the theory about strong horizontal elongation of large-scale mesoscale vortices in the World Ocean based on the theory ellipsoidal vortices to oceanic conditions. Two areas are considered, characterized by increased eddy manifestation: the Lofoten Basin in the Norwegian Sea and the Agulhas Current area. We also discuss the condition of the Atlantic Ocean and the World Ocean. The main objective of this study is to check the feasibility of the physical conditions for unbounded vortex elongation in the real ocean and estimate the fraction of mesoscale ocean vortices that are elongated into filaments with energy redistributed from the mesoscale to the submesoscale. We estimate the share of vortices in the World Ocean that are strongly elongated. We propose maps of the geographical location of unlimited vortex elongation zones and interpret the results. We also describe the effect of a decrease in the self-energy of vortices due to the tensile action of the background flow. We propose that it is a possible mechanism for energy transfer from the vortex to the flow and a manifestation of the negative viscosity effect.
KW - elongation
KW - energy
KW - filament
KW - mesoscale vortex
KW - negative viscosity
KW - submesoscale
KW - vortex filament
UR - https://www.mendeley.com/catalogue/2c62ad8d-b826-3a16-965b-cc35c61dae15/
U2 - 10.1134/s0001437023020157
DO - 10.1134/s0001437023020157
M3 - Article
VL - 63
SP - 184
EP - 194
JO - Oceanology
JF - Oceanology
SN - 0001-4370
IS - 2
ER -
ID: 113572691