Climatological mean features and interannual to decadal variability of ring formations in the Kuroshio Extension region

2016 ◽  
pp. 31-41 ◽  
Author(s):  
Yoshi N. Sasaki ◽  
Shoshiro Minobe
Keyword(s):  
Decadal Variability ◽  
Kuroshio Extension ◽  
The Kuroshio ◽  
Kuroshio Extension Region

Cold air outbreak over the Kuroshio extension region

OCEANS 2009 ◽  
2009 ◽  
Author(s):  
T. G. Jensen ◽  
T. Campbell ◽  
T. A. Smith ◽  
R. J. Small ◽  
R. Allard
Keyword(s):  
Kuroshio Extension ◽  
Cold Air ◽  
Cold Air Outbreak ◽  
The Kuroshio ◽  
Kuroshio Extension Region

scholarly journals Oceanic Eddy Characteristics and Generation Mechanisms in the Kuroshio Extension Region

2018 ◽  
Vol 123 (11) ◽  
pp. 8548-8567 ◽  
Author(s):  
Jinlin Ji ◽  
Changming Dong ◽  
Biao Zhang ◽  
Yu Liu ◽  
Bin Zou ◽  
...  
Keyword(s):  
Kuroshio Extension ◽  
Eddy Characteristics ◽  
Oceanic Eddy ◽  
Generation Mechanisms ◽  
The Kuroshio ◽  
Kuroshio Extension Region

Preliminary results from a large‐scale 3‐D tomography experiment in the Kuroshio Extension region

1998 ◽  
Vol 103 (5) ◽  
pp. 2790-2790
Author(s):  
Gang Yuan ◽  
Hidetoshi Fujimori ◽  
Toshiaki Nakamura ◽  
Iwao Nakano ◽  
Takashi Kamoshida ◽  
...  
Keyword(s):  
Large Scale ◽  
Kuroshio Extension ◽  
Preliminary Results ◽  
The Kuroshio ◽  
Kuroshio Extension Region

1000‐km square scale propagation from ocean acoustic tomography experiment in the Kuroshio Extension region

1998 ◽  
Vol 103 (5) ◽  
pp. 2790-2790
Author(s):  
Hidetoshi Fujimori ◽  
Iwao Nakano ◽  
Toshiaki Nakamura ◽  
Guan Yuan ◽  
Takashi Kamoshida ◽  
...  
Keyword(s):  
Kuroshio Extension ◽  
Acoustic Tomography ◽  
Ocean Acoustic Tomography ◽  
The Kuroshio ◽  
Kuroshio Extension Region

A comparison of acoustic and TOPEX/POSEIDON altimetric data in the Kuroshio Extension region during summer 1997

2000 ◽  
Vol 108 (5) ◽  
pp. 2586-2586
Author(s):  
Gang Yuan ◽  
Humio Mitsudera ◽  
Iwao Nakano ◽  
Hidetoshi Fujimori ◽  
Yasushi Yoshikawa ◽  
...  
Keyword(s):  
Kuroshio Extension ◽  
Altimetric Data ◽  
The Kuroshio ◽  
Kuroshio Extension Region

Decadal variability of the Kuroshio Extension

2020 ◽  
Author(s):  
Guidi Zhou ◽  
Xuhua Cheng
Keyword(s):  
Decadal Variability ◽  
Kuroshio Extension ◽  
Relaxation Oscillation ◽  
Mesoscale Eddy ◽  
Height Anomaly ◽  
Intrinsic Variability ◽  
Mean Flow ◽  
The Real ◽  
Eddy Activity ◽  
The Kuroshio

<p>The decadal variability of the Kuroshio Extension (KE) is investigated using altimeter observations (AVISO) and the output of an ocean model (OFES). It is shown that the KE decadal variability is manifested in its strength, latitudinal position, and zonal extent, as well as the associated mesoscale eddy activity. Two differences between the two datasets are identified: (a) In OFES, the eddy activity positively correlates with the KE mode index when it leads by a few years, whereas in AVISO the two are negatively and concurrently correlated. (b) In OFES, the positive KE mode is associated with large meanders of the Kuroshio south of Japan, but in AVISO they are irrelevant. These differences indicate that the generation mechanism of KE's decadal variability is different in OFES and the real ocean. The sea surface height anomaly (SSHA) is then decomposed into major components including the wind-driven Rossby waves and residual (intrinsic) variability. The relationship between the two components are virtually the same in OFES and in AVISO, showing a negative correlation when the wind-driven part leads by a few years. Further diagnostics based on OFES reveals that the residual SSHA originates from the downstream region over the Shatsky Rise, slowly propagates westward, and is driven by eddy potential energy transfer. The OFES results partly conform to the intrinsic relaxation oscillation theory put forth by idealized model analyses, but in the latter the SSHA signal originates from the upstream Kuroshio. A new mechanism is then proposed for OFES: the decadal variability of the KE is first a result of the intrinsic relaxation oscillation probably excited by wind forcing, which regulates the strength of the KE’s inflow and thus modulates the downstream topography interaction, resulting in different downstream mesoscale eddy activity that further feeds back on the mean-flow. The mechanism for the real ocean is also reassessed.</p>

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