Journal of Oceanography

, Volume 73, Issue 2, pp 193–203 | Cite as

Heat budget of the western Pacific warm pool and the contribution of eddy heat transport diagnosed from HYCOM assimilation

Original Article
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Abstract

Using the high-resolution Hybrid Coordinate Ocean Model and the Navy Coupled Ocean Data Assimilation Global 1/12° Analysis (GLBa0.08), and the Objectively Analyzed Air–Sea Fluxes and the International Satellite Climatology Cloud Project products, we investigated the seasonal and interannual evolutions of heat budget, including the pseudo-heat content change, the net air–sea heat flux and the eddy heat transport (EHT), based on the time-dependent heat budget analysis in the western Pacific warm pool (WPWP). The results show that the pseudo-heat content change has significant semi-annual variation, which peaks in April–May and September. There is strong positive feedback between EHT and the net air–sea heat flux. EHT is important in balancing the sea surface heat flux into the WPWP. The seasonal EHT variability is dominated by its meridional component. On the interannual time scale, the zonal and vertical components of EHT show comparable amplitudes with the meridional one. The observed net air–sea heat flux in the WPWP is highly correlated with EHT and the pseudo-heat content change on the interannual time scale. The net air–sea heat flux leads the pseudo-heat content change by about half a month and leads EHT by about one month. The variations of the air–sea heat flux and EHT are connected to the El Niño Southern Oscillation events: during the development of El Niño (La Niña) events, the warm pool expanded eastward (retreated westward), the net air–sea surface flux into the WPWP increased (decreased) and EHT enhanced (weakened) significantly.

Keywords

Eddy heat transport Heat budget Western Pacific warm pool ENSO Heat content 

Notes

Acknowledgments

This work is supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA11010103), the National Science Foundation of China (41525019, 41522601, 41521005), the State Oceanic Administration of China (GASI-IPOVAI-02), and the Open Project Program of the State Key Laboratory of Tropical Oceanography (grant LTOZZ1501). The OAFlux product was provided by the WHOI OAFlux Project (http://oaflux.whoi.edu/). The Argo product was provided by the International Argo Program (http://www.argo.ucsd.edu). The HYCOM product was obtained from the National Ocean Partnership Program (NOPP) (http://HYCOM.org). We would like to think Yan Li for providing HYCOM daily products.

References

  1. Bjerknes J (1969) Atmospheric teleconnections from the equatorial Pacific. Mon Weather Rev 97:163–172CrossRefGoogle Scholar
  2. Cane MA, Zebiak SE (1985) A theory for El Ni~no and the Southern Oscillation. Science 228:1085–1087CrossRefGoogle Scholar
  3. Chen YL, Hu GX (2003) Influence of heat content anonialy in the Tropical Western Pacific warm pool region on onset of South China Sea summer monsoon. Acta Meteorol Sin 17:213–225Google Scholar
  4. Chen JN, Wang HN (2009) The variation of heat status in the west Pacific warm pool and its eastward propagation. Oceanologia et Limnologia Sinca 40:669–673Google Scholar
  5. Chen JN, Wang HN, Liu XY (2008) Spatial and temporal distribution of the western Pacific warm pool and the relationship with ENSO cycle. Acta Oceanol Sin 20:10–19Google Scholar
  6. Chen X, Qiu B, Chen S, Qi Y, Du Y (2015) Seasonal eddy kinetic energy modulations along the North Equatorial Countercurrent in the western Pacific. J Geophys Res Oceans 120(9):635–6362Google Scholar
  7. Cravatte S, Delcroix T, Zhang DX, Michael M, Julie L (2009) Observed freshening and warming of the western Pacific warm pool. Clim Dyn 33:565–589CrossRefGoogle Scholar
  8. Enfield DB, Lee S (2005) The heat balance of the Western Hemisphere warm pool. J Clim 18:2662–2681CrossRefGoogle Scholar
  9. Graham NE, Barnett TP (1987) Sea surface temperature, surface wind divergence, and convection over tropical oceans. Science 238:657–659CrossRefGoogle Scholar
  10. Gent PR (1991) The heat budget of the TOGA-COARE domain in an ocean model. J Geophys Res 96(S01):3323Google Scholar
  11. Ho CR, Yan XH, Zhang Q (1995) Satellite observations of upperlayer variabilities in the western Pacific warm pool. Bull Am Meteorol Soc 76:669–679CrossRefGoogle Scholar
  12. Hoerling M, Kumar A (2003) The perfect ocean for drought. Science 299:691–694CrossRefGoogle Scholar
  13. Jayne SR, Marotzke J (2002) The oceanic eddy heat transport. J Phys Oceanogr 32:3328–3345CrossRefGoogle Scholar
  14. Levitus S (1983) Climatological atlas of the World Ocean. Eos Trans Am Geophys Union 64:962–963CrossRefGoogle Scholar
  15. Lin CY, Ho CR, Lee YH (2013) Thermal variability of the Indo-Pacific warm pool. Glob Planet Change 100:234–244CrossRefGoogle Scholar
  16. Meinen CS, McPhaden MJ (2001) Interannual variability in warm water volume transports in the equatorial Pacific during 1993–99. J Phys Oceanogr 31:1324–1345CrossRefGoogle Scholar
  17. Niiler PP, Stevenson J (1982) On the heat budget of tropical warm water pools. J Mar Res 40(Suppl):465–480Google Scholar
  18. Palmer T, Mansfield D (1984) Response of two atmospheric general circulation models to sea surface temperature anomalies in the tropical East and West Pacific. Nature 310:483–485CrossRefGoogle Scholar
  19. Paulson CA, Simpson JJ (1977) Irradiance measurements in the upper ocean. J Phys Oceanogr 7:952–956CrossRefGoogle Scholar
  20. Picaut J, Delcroix T (1995) Equatorial wave sequence associated with warm pool displacements during the 1986–1989 El Niño-La Niña. J Geophys Res 100:18393–18408CrossRefGoogle Scholar
  21. Qiu B, Chen S (2005) Eddy-induced heat transport in the subtropical North Pacific from Argo, TMI, and altimetry measurements. J Phys Oceanogr 35:458–473CrossRefGoogle Scholar
  22. Rasmussen EM, Carpenter TH (1982) Variations in tropical sea surface temperature and surface wind fields associated with the Southern Oscillation/El Niño. Mon Weather Rev 110:354–384CrossRefGoogle Scholar
  23. Roemmich D, Gilson J (2009) The 2004–2008 mean and annual cycle of temperature, salinity, and steric height in the global ocean from the Argo program. Prog Oceanogr 82:81–100CrossRefGoogle Scholar
  24. Schneider N, Barnett T, Latif M, Stockdale T (1996) Warm pool physics in a coupled GCM. J Clim 9:219–239CrossRefGoogle Scholar
  25. Song X, Yu L (2013) How much net surface heat flux should go into the Western Pacific Warm Pool? J Geophys Res Oceans 118:3569–3585CrossRefGoogle Scholar
  26. Stammer D (1998) On eddy characteristics, eddy transports, and mean flow properties. J Phys Oceanogr 28:727–739CrossRefGoogle Scholar
  27. Toole JM, Zhang HM, Caruso MJ (2004) Time-dependent internal energy budgets of the tropical warm water pools. J Clim 17:1398–1410CrossRefGoogle Scholar
  28. Trenberth KE, Branstator GW, Karoly D, Kumar A, Lau NC, Ropelewski C (1998) Progress during TOGA in understanding and modeling global teleconnections associated with tropical sea surface temperatures. J Geophys Res 103:14291–14324CrossRefGoogle Scholar
  29. Volkov DL, Lee T, Fu LL (2008) Eddy-induced meridional heat transport in the ocean. Geophys Res Lett 35:L20601CrossRefGoogle Scholar
  30. Walin G (1982) On the relation between sea-surface heat flow and thermal circulation in the ocean. Tellus 34:187–195CrossRefGoogle Scholar
  31. Wyrtik K (1985) Water displacement in the Pacific and the genesis of El Niño cycles. J Geophys Res 90:7129–7132CrossRefGoogle Scholar
  32. Yim BY, Noh Y, Qiu B, Yoon JH (2010) The vertical structure of eddy heat transport simulated by an eddy-resolving ogcm. J Phys Oceanogr 40:340–353CrossRefGoogle Scholar
  33. Yu L, Jin X, Weller RA (2008) Multidecade global flux datasets from the objectively analyzed air-sea fluxes (OAFlux) project: latent and sensible heat fluxes, ocean evaporation, and related surface meteorological variables, OAFlux Project Tech. Rep. OA-2008-01Google Scholar
  34. Zhang QL, Weng XC, Cheng MH (2003) Variations of heat content field in the western Pacific warm pool area and their impact. Oceanologia et Limnologia Sinca 34:389–396Google Scholar

Copyright information

© The Oceanographic Society of Japan and Springer Japan 2016

Authors and Affiliations

  • J. Chi
    • 1
    • 2
  • P. Shi
    • 1
  • W. Zhuang
    • 1
  • X. Lin
    • 3
  • X. Cheng
    • 1
  • Yan Du
    • 1
  1. 1.State Key Laboratory of Tropical OceanographySouth China Sea Institute of Oceanology, Chinese Academy of SciencesGuangzhouChina
  2. 2.University of Chinese Academy of SciencesBeijingChina
  3. 3.Key Laboratory of Physical OceanographyOcean University of China, Ministry of EducationQingdaoChina

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