Formation process of a warm-core ring in the Kuroshio-Oyashio frontal zone—December 1981–October 1982

1986 ◽  
Vol 33 (11-12) ◽  
pp. 1617-1640 ◽  
Author(s):  
Hiroshi Kawamura ◽  
Keisuke Mizuno ◽  
Yoshiaki Toba
Keyword(s):  
Formation Process ◽  
Frontal Zone ◽  
Warm Core ◽  
Warm Core Ring ◽  
The Kuroshio

scholarly journals The Dynamical Structure of a Warm Core Ring as Inferred from Glider Observations and Along-Track Altimetry

2021 ◽  
Vol 13 (13) ◽  
pp. 2456
Author(s):  
Thomas Meunier ◽  
Enric Pallás Sanz ◽  
Charly de Marez ◽  
Juan Pérez ◽  
Miguel Tenreiro ◽  
...  
Keyword(s):  
Rotation Axis ◽  
Relative Vorticity ◽  
Dynamical Structure ◽  
Loop Current ◽  
Energy Partition ◽  
Warm Core ◽  
Warm Core Ring ◽  
Current Ring ◽  
Along Track ◽  
Pv Gradient

This study investigates the vertical structure of the dynamical properties of a warm-core ring in the Gulf of Mexico (Loop Current ring) using glider observations. We introduce a new method to correct the glider’s along-track coordinate, which is, in general, biased by the unsteady relative movements of the glider and the eddy, yielding large errors on horizontal derivatives. Here, we take advantage of the synopticity of satellite along-track altimetry to apply corrections on the glider’s position by matching in situ steric height with satellite-measured sea surface height. This relocation method allows recovering the eddy’s azimuthal symmetry, precisely estimating the rotation axis position, and computing reliable horizontal derivatives. It is shown to be particularly appropriate to compute the eddy’s cyclo-geostrophic velocity, relative vorticity, and shear strain, which are otherwise out of reach when using the glider’s raw traveled distance as a horizontal coordinate. The Ertel potential vorticity (PV) structure of the warm core ring is studied in details, and we show that the PV anomaly is entirely controlled by vortex stretching. Sign reversal of the PV gradient across the water column suggests that the ring might be baroclinically unstable. The PV gradient is also largely controlled by gradients of the vortex stretching term. We also show that the ring’s total energy partition is strongly skewed, with available potential energy being 3 times larger than kinetic energy. The possible impact of this energy partition on the Loop Current rings longevity is also discussed.

Copper complexation in sargasso sea and gulf stream warm-core ring waters

1988 ◽  
Vol 23 (1-2) ◽  
pp. 181-203 ◽  
Author(s):  
Alfred K Hanson ◽  
Carole M Sakamoto-Arnold ◽  
Douglas L Huizenga ◽  
Dana R Kester
Keyword(s):  
Gulf Stream ◽  
Sargasso Sea ◽  
Warm Core ◽  
Warm Core Ring ◽  
Copper Complexation

Mixing in warm-core rings of the Kuroshio

1991 ◽  
Vol 96 (C5) ◽  
pp. 8773 ◽  
Author(s):  
Konstantin Rogachev ◽  
Vladimir Goryachev
Keyword(s):  
Warm Core ◽  
The Kuroshio
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