Lagrangian methods for observation of intrathermocline eddies in ocean

Autor:	I. M. Vagina, B. N. Filyushkin, Mikhail A. Sokolovskiy, N. G. Kozhelupova
Rok vydání:	2014
Předmět:	Advection Oceanography Geodesy Physics::Geophysics law.invention Lens (optics) symbols.namesake Eddy Neutral buoyancy Anticyclone law Climatology symbols Altimeter Physics::Atmospheric and Oceanic Physics Argo Geology Lagrangian
Zdroj:	Oceanology. 54:688-694
ISSN:	1531-8508 0001-4370
Popis:	Intrathermocline anticyclonic eddies (lenses) of Mediterranean origin are regularly observed in the Eastern part of the Atlantic Ocean. These eddies are identified both from satellites as altimetry and sea� surface temperature (SST) changes and according to data of neutral buoyancy floats (NBF) placed in the body of a lens. In this paper, in the framework of a threelayer quasigeostrophic model, using the contour dynamics method, we consider some theoretical aspects of lens movement observations made by acoustic NBF and freely drifting buoys of the Argo project. Direct experimental observation data on the lenses' drift in the North Atlantic qualitatively confirmed the results of our numerical experiments. In particular, it is shown that the spin of the lens has an advective influence on the behavior of NBF at distances of several lens radii.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4de3ac1f1c1adcf98fe2843e9bbd6799 https://doi.org/10.1134/s0001437014050051 Zobrazit plný text záznamu Full text from SpringerLink