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Decadal variability of the Kuroshio Extension: mesoscale eddies and recirculations

Ocean Dynamics volume 60, pages 673–691 (2010)Cite this article

Abstract

An eddy-resolving multidecadal ocean model hindcast simulation is analyzed to investigate time-varying signals of the two recirculation gyres present respectively to the north and south of the Kuroshio Extension (KE) jet. The northern recirculation gyre (NRG), which has been detected at middepth recently by profiling float and moored current meter observations, is a major focus of the present study. Low-frequency variations in the intensity of the recirculation gyres are overall highly correlated with decadal variations of the KE jet induced by the basin-wide wind change. Modulation of the simulated mesoscale eddies and its relationship with the time-varying recirculation gyres are also evaluated. The simulated eddy kinetic energy in the upstream KE region is inversely correlated with the intensity of the NRG, consistent with previous observational studies. Eddy influence on the low-frequency modulation of the NRG intensity at middepth is further examined by a composite analysis of turbulent Sverdrup balance, assuming a potential vorticity balance between the mean advection and the convergent eddy fluxes during the different states of the recirculation gyre. The change in the NRG intensity is adequately explained by that inferred by the turbulent Sverdrup balance, suggesting that the eddy feedback triggers the low-frequency modulation of the NRG intensity at middepth.

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Notes

  1. Hereafter “bimodal states” are referred to as two contrasting states of the KE system with respect to the NRG intensity, KE’s quasistationary meanders (Section 3.3), and EKE level in the upstream KE region (discussed in this section).

References

  • Berloff P, Hogg A, Dewar W (2007) The turbulent oscillator: a mechanism of low-frequency variability of the wind-driven ocean gyres. J Phys Oceanogr 37:2363–2386

    Article  Google Scholar 

  • Ceballos L, Lorenzo ED, Hoyos C, Schneider N, Taguchi B (2009) North Pacific gyre oscillation synchronizes climate fluctuations in the eastern and western boundary systems. J Climate 22:5163–5174

    Article  Google Scholar 

  • Cessi PR, Ierley G, Young WR (1987) A model of inertial recirculation driven by potential vorticity anomalies. J Phys Oceanogr 17:1640–1652.

    Article  Google Scholar 

  • Deser C, Alexander MA, Timlin MS (1999) Evidence for a wind-driven intensification of the Kuroshio current extension from the 1970s to the 1980s. J Climate 12:1697–1706

    Article  Google Scholar 

  • Di Lorenzo E and coauthors (2008) North Pacific gyre oscillation links ocean climate and ecosystem change. Geophys Res Lett 35:1–6. doi:10.1029/2007GL032838

    Google Scholar 

  • Dijkstra HA, Ghil M (2005) Low-frequency variability of the ocean circulation: a dynamical system approach. Rev Geophys 43:RG3002. doi:10.1029/2002RG000122

    Article  Google Scholar 

  • Ducet N, LeTraon P-Y, Reverdin G (2000) Global high resolution mapping of ocean circulation from TOPEX/Poseidon and ERS-1/2. J Geophys Res 105:19477–19498

    Article  Google Scholar 

  • Hogg N (1988) Stochastic wave radiation by the Gulf Stream. J Phys Oceangr 18:1687–1701.

    Article  Google Scholar 

  • Hogg AM, Killworth PD, Blundell JR, Dewar WK (2005) Mechanisms of decadal variability of the wind-driven ocean circulation. J Phys Oceanogr 35:512–531

    Article  Google Scholar 

  • Jayne S, Hogg N, Waterman S, Rainville L, Donohue K, Watts D, Tracey K, McClean J, Maltrud M, Qiu B, Chen S, Hacker P (2009) The Kuroshio extension and its recirculation gyres. Deep Sea Res 56:2088–2099

    Article  Google Scholar 

  • Jiang S, Jin F-F, Ghil M (1995) Multiple equilibria, periodic, and aperiodic solutions in a wind-driven, double-gyre, shallow-water model. J Phys Oceanogr 25:764–786

    Article  Google Scholar 

  • Kalnay E and coauthors (1996) The NCEP/NCAR 40-year reanalysis project. Bull Am Meteor Soc 77:437–471

    Article  Google Scholar 

  • Kwon Y-O, Deser C (2007) North Pacific decadal variability in the community climate system model version 2. J Climate 20:2416–2433

    Article  Google Scholar 

  • Masumoto Y, Sasaki H, Kagimoto T, Komori N, Ishida A, Sasai Y, Miyama T, Motoi T, Mitsudera H, Takahashi K, Sakuma H, Yamagata T (2004) A fifty-year eddy-resolving simulation of the world ocean—preliminary outcomes of OFES (OGCM for the earth simulator). J Earth Simul 1:31–52

    Google Scholar 

  • Maximenko N, Niiler P (2004) Hybrid decade-mean global sea level with mesoscale resolution. In: Saxena N (ed) Recent advances in marine science and technology. PACON International, Honolulu, pp 55–59

    Google Scholar 

  • McClean J, Jayne S, Maltrud M, Ivanova D (2009) The fidelity of ocean models with explicit eddies. In: Hecht MW, Hasumi H (eds) Ocean modeling in an eddying regime. Am Geophys Union Geophys Monograph, no 177. American Geophysical Union, Washington, pp 149–163

  • Miller A, Cayan D, White W (1998) A westward-intensified decadal change in the North Pacific thermocline and gyre-scale circulation. J Climate 11:3112–3127

    Article  Google Scholar 

  • Nakamura H, Sampe T, Tanimoto Y, Shimpo A (2004) Observed associations among storm tracks, jet streams, and midlatitude oceanic fronts. In: Wang C, Xie S-P, Carton J (eds) Earth climate: the ocean-atmosphere interaction. Amer. Geophys. Union. Geophys. Monograph, no 147. American Geophysical Union, Washington, pp 329–345

    Google Scholar 

  • Nakano H, Tsujino H, Furue R (2008) The Kuroshio current system as the jet and twin “relative” recirculation gyres embedded in the Sverdrup circulation. Dynam Ocean Atmos 45:135–164

    Article  Google Scholar 

  • Niiler P, Maximenko N, McWilliams JC (2003a) Dynamically balanced absolute sea level of the global ocean derived from near-surface velocity observations. Geophys Res Lett 30:2164. doi:10.1029/2003GL018628

    Article  Google Scholar 

  • Niiler P, Maximenko N, Panteleev G, Yamagata T, Olson D (2003b) Near-surface dynamical structure of the Kuroshio extension. J Geophys Res 108:3193. doi:10.1029/2002JC001461

    Article  Google Scholar 

  • Nonaka M, Nakamura H, Tanimoto Y, Kagimoto T, Sasaki H (2006) Decadal variability in the Kuroshio–Oyashio extension simulated in an eddy-resolving OGCM. J Climate 19:1970–1989

    Article  Google Scholar 

  • Nonaka M, Nakamura H, Tanimoto Y, Kagimoto T, Sasaki H (2008) Interannual-to-decadal variability in the Oyashio Current and its influence on temperature in the subarctic frontal zone: an eddy-resolving OGCM simulation. J Climate 21:6283–6303

    Article  Google Scholar 

  • Pacanowski RC, Griffies SM (2000) MOM 3.0 manual. Technical report, Geophysical Fluid Dynamics Laboratory/National Oceanic and Atmospheric Administration, 680 pp

  • Pedlosky J (1996) Ocean circulation theory. Springer, Berlin

    Google Scholar 

  • Pierini S, Dijkstra H (2009) Low-frequency variability of the Kuroshio extension. Nonlinear Process Geophys 16:665–675

    Article  Google Scholar 

  • Pierini S, Dijkstra H, Riccio A (2009) A nonlinear theory of the Kuroshio Extension bimodality. J Phys Oceanogr 39:2212–2229

    Article  Google Scholar 

  • Qiu B (2002) The Kuroshio Extension system: its large-scale variability and role in the midlatitude ocean–atmosphere interaction. J Oceanogr 58:57–75

    Article  Google Scholar 

  • Qiu B (2003) Kuroshio Extension variability and forcing of the Pacific decadal oscillations: responses and potential feedback. J Phys Oceanogr 33:2465–2482

    Google Scholar 

  • Qiu B, Chen S (2005) Variability of the Kuroshio Extension jet, recirculation gyre and mesoscale eddies on decadal timescales. J Phys Oceanogr 35:2090–2103

    Article  Google Scholar 

  • Qiu B, Chen S (2010) Eddy-mean flow interaction in the decadally modulating Kuroshio Extension system. Deep Sea Res 57. doi:10.1016/j.dsr2.2008.11.036

    Google Scholar 

  • Qiu B, Kelly K, Joyce T (1991) Mean flow and variability of the Kuroshio Extension from the Geosat altimetry data. J Geophys Res 96:18491–18507

    Article  Google Scholar 

  • Qiu B, Schneider N, Chen S (2007) Coupled decadal variability in the North Pacific: an observationally-constrained idealized model. J Climate 20:3602–3620

    Article  Google Scholar 

  • Qiu B, Chen S, Hacker P, Hogg N, Jayne S, Sasaki H (2008) The Kuroshio Extension northern recirculation gyre: profiling float measurements and forcing mechanism. J Phys Oceanogr 38:1764–1779

    Article  Google Scholar 

  • Rhines PB, Holland WR (1979) A theoretical discussion of eddy-driven mean flows. Dyn Atmos Oceans 3:289–325

    Article  Google Scholar 

  • Rosati A, Miyakoda K (1988) A general circulation model for upper ocean circulation. J Phys Oceanogr 18:1601–1620

    Article  Google Scholar 

  • Sasai Y, Sasaoka K, Sasaki H, Ishida A (2007) Seasonal and intra-seasonal variability of chlorophyll-a in the North Pacific: model and satellite data. J Earth Simul 8:3–11

    Google Scholar 

  • Sasaki H, Nonaka M, Masumoto Y, Sasai Y, Uehara H, Sakuma H (2008) An eddy-resolving hindcast simulation of the quasiglobal ocean from 1950 to 2003 on the Earth simulator. In: Hamilton K, Ohfuchi W (eds) High resolution numerical modelling of the atmosphere and ocean. Springer, New York, pp 157–185

    Chapter  Google Scholar 

  • Sasai Y, Richards KJ, Ishida A, Sasaki H (2010) Effects of mesoscale eddies on the marine ecosystem in the Kuroshio Extension region using an eddy-resolving coupled physical–biological model. Ocean Dyn. doi:10.1007/s10236-010-0264-8

    Google Scholar 

  • Schneider N, Cornuelle BD (2005) The forcing of the Pacific decadal oscillation. J Climate 18:4355–4373

    Article  Google Scholar 

  • Schneider N, Miller A (2001) Predicting western North Pacific ocean climate. J Climate 14:3997–4002

    Article  Google Scholar 

  • Seager R, Kushnir Y, Naik NH, Cane MA, Miller J (2001) Wind-driven shifts in the latitude of the Kuroshio–Oyashio extension and generation of SST anomalies on decadal timescales. J Climate 14:4249–4265

    Article  Google Scholar 

  • Taguchi B, Xie S-P, Mitsudera H, Kubokawa A (2005) Response of the Kuroshio Extension to Rossby waves associated with the 1970s climate regime shift in a high-resolution ocean model. J Climate 18:2979–2995

    Article  Google Scholar 

  • Taguchi B, Xie S-P, Schneider N, Nonaka M, Sasaki H, Sasai Y (2007) Decadal variability of the Kuroshio Extension: observations and an eddy-resolving model hindcast. J Climate 20:2357–2377

    Article  Google Scholar 

  • Taguchi B, Nakamura H, Nonaka M, Xie S-P (2009) Atmospheric influence of the Kuroshio/Oyashio extensions simulated for the 2003/4 winter in a regional atmospheric model. J Climate 22:6536–6560

    Article  Google Scholar 

  • Talley LD (1988) Potential vorticity distribution in the North Pacific. J Phys Oceanogr 18:89–106

    Article  Google Scholar 

  • Tokinaga H, Tanimoto Y, Xie S-P, Sampe T, Tomita H, Ichikawa H (2009) Ocean frontal effects on the vertical development of clouds over the western North Pacific: in situ and satellite observations. J Climate 22:4241–4260

    Article  Google Scholar 

Download references

Acknowledgements

The authors thank two anonymous reviewers for their careful reading that helped improve the earlier version of this manuscript. This work is supported by the Japan Agency for Marine-Earth Science and Technology (JAMSTEC). MN, BT, and HS are in part supported by the Agriculture, Forestry and Fisheries Research Council of Japan, through the research project POMAL (Population Outbreak of Marine Life); BT and MN are also supported by Japan Society for Promotion for Science, through a grant-in-aid for Scientific Research (C) 21540458. BQ and NS are supported by the US National Science Foundation (NSF) through Grant OCE-0220680 and Grant OCE06-47994, respectively. IPRC Publication Number 691 and SOEST Publication Number 7927.

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Authors and Affiliations

  1. Earth Simulator Center, Japan Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-Ku, Yokohama, Kanagawa, 236-0001, Japan

    Bunmei Taguchi & Hideharu Sasaki

  2. Department of Oceanography, University of Hawaii at Manoa, 1000 Pope Rd., Honolulu, HI, 96822, USA

    Bo Qiu

  3. Research Institute for Global Change, Japan Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-Ku, Yokohama, Kanagawa, 236-0001, Japan

    Masami Nonaka

  4. International Pacific Research Center, University of Hawaii at Manoa, 1680 East-West Rd., Honolulu, HI, 96822, USA

    Shang-Ping Xie & Niklas Schneider

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  1. Bunmei Taguchi
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  2. Bo Qiu
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Correspondence to Bunmei Taguchi.

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Taguchi, B., Qiu, B., Nonaka, M. et al. Decadal variability of the Kuroshio Extension: mesoscale eddies and recirculations. Ocean Dynamics 60, 673–691 (2010). https://doi.org/10.1007/s10236-010-0295-1

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Keywords

  • Kuroshio Extension
  • Recirculation gyres
  • Mesoscale eddies
  • High-resolution ocean model