Review on Mesoscale Eddy Studies in the Kuroshio Extension Region
Abstract: The Kuroshio Extension (KE) region is the key region in mid-latitude ocean-atmosphere interaction where mesoscale eddies achieve their largest magnitude. Mesoscale eddies’ interaction with the mean flow plays a critical role in Kuroshio meander dynamics. Anticyclonic eddies prevailing in Kuroshio recirculation region are crucial to North Pacific subtropical mode water formation. This paper summarizes works on spatial-temporal characteristics of mesoscale eddies and their interaction with the local wind in the KE region. The characteristics of these eddies, such as spatial distribution, migration speed, water mass structure were intensively studied. The mechanism of the eddy formation was known as the baroclinic instability. The seasonal cycle of the eddy kinetic energy, which has a maximum in summer, is proved. The three dimensional structure, the nonlinearity, the temporal variation, the available gravitational potential energy of mesoscale eddies in the KE region will be the focus of near future study. The interaction between nonlinear eddies and local wind will be investigated to advance the understanding of the role of eddies in the mid-latitude ocean-atmosphere interaction.
文章引用: 张 笑 , 贾英来 , 沈辉 , 陈隆京 , 刘洋 (2013) 黑潮延伸体区域海洋涡旋研究进展。 气候变化研究快报， 2， 1-8. doi: 10.12677/CCRL.2013.21001
 B. Qiu. Kuroshio Extension variability and forcing of the Pacific De-cadal Oscillations: Responses and potential feedback. Journal of Physical Oceanography, 2003, 33: 2465-2482.
 K. Mizuno, W. B. White. Annual and interannual variability in the Kuroshio current system. Journal of Physical Oceanography, 1983, 13(10): 1847-1867.
 H. E. Hurlburt, E. J. Metzger. Bifurcation of the Kuroshio extension at the Shatsky rise. Journal of Geophysical Re-search, 1998, 103(C4): 7549-7566.
 T. M. Joyce, W. J. Schmitz. Zonal velocity structure and transport in the Kuroshio extension. Jour-nal of Physical Oceanography, 1988, 18(11): 1484-1494.
 B. Qiu, S. Chen, P. Hacker, et al. The Kuroshio extension northern recircula-tion gyre: Profiling float measurements and forcing mechanism. Jour-nal of Physical Oceanography, 2008, 38: 1764- 1779.
 B. Qiu. The Kuroshio extension system: Its large-scale variability and role in the midlatitude ocean-atmosphere interaction. Journal of Oceanography, 2002, 58(1): 57-75.
 M. G. Scharffenberg, D. Stammer. Annual variations of geostrophic currents and eddy kinetic energy inferred from TOPEX/ Poseidon and Jason-1 tandem mission data. Ocean Sci-ences Meeting, Orlando, 3-7 March 2008.
 S. Waterman, N. G. Hogg and S. R. Jayne. Eddy-mean flow interaction in the Kuroshio extension region. Journal of Physical Oceanography, 2011, 41: 1182-1208.
 A. J. Pan, Q. Y. Liu. Mesoscale eddy effects on the wintertime vertical mixing in the formation region of the North Pacific Subtropical Mode Water. Chinese Science Bulletin, 2005, 50(17): 1949-1956.
 B. Qiu, S. Chen and P. Hacker. Effect of mesoscale eddies on Subtropical Mode Water variability from the Kuroshio ex-tension system study (KESS). Journal of Physical Oceanography, 2007, 37(4): 982-1000.
 S. Nishikawa, H. Tsujino, K. Sakamoto, et al. Effects of me- soscale eddies on subduction and distribution of Sub-tropical Mode Water in an eddy-resolving OGCM of the Western North Pacific. Journal of Physical Oceanography, 2010, 40: 1748- 1765.
 R. J.Small, S. P.Deszoeke, S. P. Xie, et al. Air-sea interac-tion over ocean fronts and eddies. Dynamics of Atmospheres and Oceans, 2008, 45: 274-319.
 X. Lin, W. Xing, L. Qiang, et al. An amplification mechanism of intraseasonal long rossby wave in sub-tropical ocean. Journal of Oceanography, 2005, 61(2): 369-378.
 B. Qiu, S. Chen. Eddy-mean flow interaction in the decadally modulating Kuroshio Extension system. Deep Sea Research, 2010, 57(13-14): 1098-1110.
 D. B. Chelton, M. G. Schlax and R. M. Samelson. Global observations of nonlinear mesoscale eddies. Progress in Oceanography, 2011, 91(2): 167-216.
 W. B. White, J. P. McCrery. On the formation of the Kuroshio meander and its relationship to the large-scale ocean circulation. Deep Sea Research, 1976, 23(1): 33-47.
 I. Yasuda, K. Okuda and M. Hirai. Evolution of a Ku-roshio warm-core ring—Variability of the hydrographic structure. Deep Sea Research, 1992, 39(1): S131-S161.
 B. Qiu, S. M. Chen. Variability of the Kuroshio Extension jet, recirculation gyre and mesoscale eddies on decadal time scales. Journal of Physical Ocean-ography, 2005, 35(11): 2465-2482.
 K. Kitano. Some properties of the warm eddies generated in the confluence zone of the Kuroshio and Oyashio currents. Journal of Physical Oceanography, 1975, 5: 245-252.
 T. Waseda, H. Mitsudera, B. Taguchi, et al. On the eddy-Kuroshio interaction: Meander formation process. Journal of Geophysical Research, 2003, 108(C7): 3220.
 Y. Miyazawa, T. Kagimoto, X. Y. Guo, et al. The Kuroshio large meander formation in 2004 analyzed by an eddy-resolving ocean forecast system. Journal of Geophysical Research, 2008, 113 (C10): C10015.
 N. Ebuchi, K. Hanawa. Mesoscale eddies observed by TOLEX- ADCP and TOPEX/Poseidon altimeter in the Kuroshio recirculation region south of Japan. Journal of Oceanography, 2000, 56(1): 43-57.
 B. Qiu, K. A. Kelly and T. M. Joyce. Mean flow and variability in the Kuroshio extension from Geostat altimetry data. Journal of Geophysical Re-search, 1991, 96(C10): 18491-18507.
 S. Itoh, I. Yasuda. Water mass structure of warm and cold anticyclonic eddies in the western boundary region of the subarctic North Pacific. Journal of Physical Oceanography, 2010, 40(12): 2624-2642.
 A. Okubo. Horizontal dispersion of floatable particles in the vicinity of velocity singularities such as convergences. Deep Sea Research and Oceanographic Ab-stracts, 1970, 17(3): 445-454.
 J. Weiss. The dynamics of enstro-phy transfer in 2-dimensional hydrodynamics. Physica D: Nonlinear Phenomena, 1991, 48(2-3): 273-294.
 S. Itoh, I. Yasuda. Charac-teristics of mesoscale eddies in the Kuroshio—Oyashio Extension region detected from the distribution of the sea surface height anomaly. Journal of Physical Oceanography, 2010, 40(5): 1018-1034.
 D. B. Chelton, M. G. Schlax, R. M. Samelson, et al. Global observations of large oceanic eddies. Journal of Geophysical Research, 2007, 34(15): Article ID: L15606.
 C. K. Tai, W. B. White. Eddy variability in the Kuroshio Extension as revealed by GEOSAT altimetry: Energy propagation away from the jet, Reynolds stress, and seasonal cycle. Journal of Physical Oceanography, 1990, 20(11): 1761-1777.
 C. Xu, X.-D. Shang and R. X. Huang. Estimate of eddy energy genera-tion/dissipation rate in the world ocean from altimetry data. Ocean Dynamics, 2011, 61(4): 525-541.
 R. A. Wood. Unstable waves on oceanic fronts: Large amplitude behavior and mean flow generation. Journal of Physical Oceanography, 1988, 18(5): 775-787.
 N. Ebuchi, K. Hanawa. Trajectory of mesoscale eddies in the Kuroshio recirculation region. Journal of Oceanography, 2001, 57(4): 471-480.
 K. Ichikawa, S. Imawaki. Life history of a cyclonic ring detached from the Kuroshio Extension as seen by the Geosat altimeter. Journal of Geophysical Research, 1994, 99(C8): 15953- 15966.
 D. Nof. On the beta-induced movement of isolated baroclinic eddies. Journal of Physical Oceanography, 1981, 11: 1662-1672.
 B. Cushman-Roisin, E. P. Chassigneta and B. Tang. Westward motion of mesoscale eddies. Journal of Physical Oceanography, 1990, 20(5): 758-768.
 P. J. van Leeuwen. The propagation mechanism of a vortex on the beta plane. Journal of Physical Oceanography, 2007, 37(9): 2316-2330.
 B. Cushman-Roisin, L. J. Pratt and E. Ralph. A general theory for equivalent barotropic thin jets. Journal of Physical Oceanography, 1993, 23(1): 91-103.
 W. K. Dewar, G. Flierl. Some effects of the wind on rings. Journal of Physical Oceanography, 1987, 17: 1653-1667.
 S. Itoh, I. Yasuda. Characteristics of mesoscale eddies in the Kuroshio—Oyashio Extension Region de-tected from the distribution of the sea surface height anomaly. Journal of Physical Oceanography, 2009, 40(5): 1018-1034.
 D. Nof, Y. L. Jia, E. P. Chassignet, et al. Fast wind-induced migration of Leddies in the South China Sea. Journal of Physical Oceanography, 2011, 41: 1683-1693.
 M. A. Clifford, C. W. Horton. Baroclinic transport of the Kuroshio Extension between 141˚E and 165˚E. Journal of Geo-physical Research, 1992, 97(C8): 12527-12533.
 H. Tatebe, I. Yasuda. Seasonal axis migration of the Upstream Kuroshio Extension associated with standing oscillations. Journal of Geophysical Research, 2001, 106: 16685-16692.
 B. Qiu. Recirculation and seasonal change of the Kuroshio from altimetry observations. Journal of Geo-physical Research, 1992, 97(C11): 17801-17811.
 AVISO. SSALTO/DUACS user handbook: (M)SLA and (M) ADT near-real time and delayed time products. Paris: Centre National d’Etudes Spa-tiales (CNES), 2008: 32.
 M. G. Scharffenberg, D. Stammer. Sea-sonal variations of the large-scale geostrophic flow field and eddy kinetic energy inferred from the TOPEX/Poseidon and Jason-1tandem mission data. Journal of Geophysical Research, 2010, 115: Article ID: C02008.
 R. X. Huang. Ocean circulation, wind-driven and ther-mohaline processes. Cambridge: Cambridge University Press, 2010: 806.
 S. Aoki, S. Imawaki and K. Ichikawa. Baroclinic distur-bances propagating westward in the Kuroshio Extension region as seen by a satellite altimeter and radiometers. Journal of Geophysical Re-search, 1995, 100: 839-855.
 L. P. Wang, C. J. Koblinsky. Low-frequency variability in regions of the Kuroshio Extension and the Gulf Stream. Journal of Geophysical Research, 1995, 100(C9): 18313-18331.
 B. Taguchi, B. Qiu, M. Nonaka, et al. Decadal variability of the Kuroshio extension: Mesoscale eddies and recircula-tions. Ocean Dynamics, 2010, 60(3): 673-691.
 R. J. Greatbatch, X. M. Zhai, J. D. Kohlmann, et al. Ocean eddy momentum fluxes at the latitudes of the Gulf Stream and the Kuroshio extensions as re-vealed by satellite data. Ocean Dynamics, 2010, 60(3): 617-628.