ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2012, Vol. 9, No. 5, pp. 251-259

Seasonal variation of sea level, circulation, and eddy kinetic energy in the Japan Sea

O.O. Trusenkova , S.Yu. Ladychenko , D.D. Kaplunenko , V.B. Lobanov 
V.I. Il'ichev Pacific Oceanological Institute FEB RAS, 690041 Vladivostok, 43 Karbysheva Str
Seasonal variation of sea level, circulation, and eddy kinetic energy in the Japan Sea is by using AVISO altimetric sea level anomalies. Sea level and eddy kinetic energy (EKE) are characterized by interacting modes of variability: synchronous sea level rise in the entire Sea, circulation intensification, and EKE increase occur from spring through fall and the reverse phase develops from winter through spring, with the seasonal extremes taking place in March - April and October - November, respectively. Shear instability is important for EKE generation in the Japan Sea. Despite the fact that mean EKE in the subarctic sector is an order of magnitude lower than in the subtropical area, there are zones of the increased EKE north of the subarctic front due to frequent short-lived mesoscale structures.
Keywords: the Japan Sea, satellite altimetry, sea circulation, eddy kinetic energy, shear instability
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