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Understanding the Indian Ocean response to double CO2 forcing in a coupled model

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Abstract

This study investigates the roles of multiple ocean-atmospheric feedbacks in the oceanic response to increased carbon dioxide by applying an overriding technique to a coupled climate model. The annual-mean sea surface temperature (SST) response in the Indian Ocean exhibits a zonal-dipolar warming pattern, with a reduced warming in the eastern and enhanced warming in the western tropical Indian Ocean (TIO), reminiscent of the Indian Ocean Dipole (IOD) pattern. The development of the dipole pattern exhibits a pronounced seasonal evolution. The overriding experiments show that the wind–evaporation–sea surface temperature (WES) feedback accounts for most of the enhanced warming in the western and central TIO during May–July with reduced southerly monsoonal wind and contributes partially to the reduced warming in the eastern TIO during June–September. The Bjerknes feedback explains most of the reduced warming in the eastern TIO during August-October, accompanied by a reduction of precipitation, easterly wind anomalies, and a thermocline shoaling along the equator. Both feedbacks facilitate the formation of the dipolar warming pattern in the TIO. The residual from the Bjerknes and WES feedbacks is attributable to the “static” response to increasing CO2. While the static SST response also contributes to the seasonal SST variations, the static precipitation response is relatively uniform in the TIO, appearing as a general increase of precipitation along the equatorial Indian Ocean during June–September.

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References

  • Biasutti M, Sobel AH (2009) Delayed Sahel rainfall and global seasonal cycle in a warmer climate. Geophys Res Lett 36, L23707. doi:10.1029/2009GL041303

    Article  Google Scholar 

  • Bjerknes J (1969) Atmospheric teleconnections from the equatorial Pacific. Mon Weather Rev 97:163–172

    Article  Google Scholar 

  • Cai W, Cowan T (2013) Why is the amplitude of the Indian Ocean Dipole overly large in CMIP3 and CMIP5 climate models? Geophys Res Lett 40:1200–1205. doi:10.1002/grl.50208

    Article  Google Scholar 

  • Chadwick R, Boutle I, Martin G (2013) Spatial patterns of precipitation change in CMIP5: why the rich do not get richer in the tropics. J Clim 26:3803–3822

    Article  Google Scholar 

  • Clement AC, Seager R, Cane MA, Zebiak SE (1996) An ocean dynamical thermostat. J Clim 9:2190–2196

    Article  Google Scholar 

  • Collins WD et al (2006) The Community Climate System Model version 3 (CCSM3). J Clim 19:2122–2143

    Article  Google Scholar 

  • DiNezio PN, Clement AC, Vecchi GA, Soden BJ, Kirtman BP, Lee S-K (2009) Climate response of the equatorial Pacific to global warming. J Clim 22:4873–4892

    Article  Google Scholar 

  • Du Y, Xie S-P (2008) Role of atmospheric adjustments in the tropical Indian Ocean warming during the 20th century in climate models. Geophys Res Lett 35, L08712. doi:10.1029/2008GL033631

    Article  Google Scholar 

  • Dwyer JG, Biasutti M, Sobel AH (2014) The effect of greenhouse gas-induced changes in SST on the annual cycle of zonal mean tropical precipitation. J Clim 27:4544–4565

    Article  Google Scholar 

  • Held IM, Soden BJ (2006) Robust response of the hydrological cycle to global warming. J Clim 19:5686–5699

    Article  Google Scholar 

  • Huang P, Xie S-P, Hu K, Huang G, Huang R (2013) Patterns of the seasonal response of tropical rainfall to global warming. Nat Geosci 6:357–361

    Article  Google Scholar 

  • Ihara C, Kushnir Y, Cane MA, de la Peña VH (2009) Climate change over the equatorial Indo-Pacific in global warming*. J Clim 22:2678–2693

    Article  Google Scholar 

  • Johnson NC, Xie S-P (2010) Changes in the sea surface temperature threshold for tropical convection. Nat Geosci 3:842–845

    Article  Google Scholar 

  • Knutson TR, Manabe S (1995) Time-mean response over the tropical Pacific to increased CO2 in a coupled ocean–atmosphere model. J Clim 8:2181–2199

    Article  Google Scholar 

  • Li G, Xie S-P, Du Y (2015) Monsoon-induced biases of climate models over the tropical Indian Ocean with implications for regional climate projection. J Clim 28:3058–3072 

  • Liu Z, Varvus S, He F, Wen N, Zhong Y (2005) Rethinking tropical oceanic response to global warming: The enhanced equatorial warming. J Clim 18:4684–4700

    Article  Google Scholar 

  • Lu J, Zhao B (2012) The role of oceanic feedback in the climate response to doubling CO2. J Clim 25:7544–7563. doi:10.1175/JCLI-D-11-00712.1

    Article  Google Scholar 

  • Lu J, Vecchi G, Reichler T (2007) Expansion of the Hadley cell under global warming. Geophys Res Lett 34, L06805. doi:10.1029/2006GL028443

    Google Scholar 

  • Lu J, Chen G, Frierson D (2008) Response of the zonal mean atmospheric circulation to El Niño versus global warming. J Clim 21:5835–5851

    Article  Google Scholar 

  • Luo Y, Lu J, Liu F, Liu W (2014) Understanding the El Niño-like oceanic response in the tropical Pacific to global warming. Clim Dyn. doi:10.1007/s00382-014-2448-2

    Google Scholar 

  • Meyers G, McIntosh P, Pigot L, Pook M (2007) The years of El Niño, La Niña, and interactions with the tropical Indian Ocean. J Clim 20:2872–2880

    Article  Google Scholar 

  • Saji NH, Goswami BN, Vinayachandran PN, Yamagata T (1999) A dipole mode in the tropical Indian Ocean. Nature 401:360–363

    Google Scholar 

  • Seth A, Rauscher SA, Biasutti M, Giannini A, Camargo S (2013) CMIP5 projected changes in the annual cycle of precipitation in monsoon regions. J Clim 26:7328–7351

    Article  Google Scholar 

  • Tokinaga H, Xie S-P, Deser C, Kosaka Y, Okumura YM (2012) Slowdown of the Walker circulation driven by tropical Indo-Pacific warming. Nature 491:439–443

    Article  Google Scholar 

  • Vecchi GA, Soden BJ (2007) Increased tropical Atlantic wind shear in model projections of global warming. Geophys Res Lett 34, L08702. doi:10.1029/2006GL028905

    Article  Google Scholar 

  • Vecchi GA, Soden BJ, Wittenberg AT, Held IM, Leetmaa A, Harrison MJ (2006) Weakening of tropical Pacific atmospheric circulation due to anthropogenic forcing. Nature 441:73–76

    Article  Google Scholar 

  • Webster PJ, Moore AM, Loschnigg JP, Leben RR (1999) Coupled ocean–atmosphere dynamics in the Indian Ocean during 1997–98. Nature 401:356–360

    Article  Google Scholar 

  • Xie S-P, Philander G (1994) A coupled ocean–atmosphere model of relevance to the ITCZ in the eastern Pacific. Tellus 46A:340–350

    Article  Google Scholar 

  • Xie S-P, Deser C, Vecchi GA, Ma J, Teng H, Wittenberg AT (2010) Global warming pattern formation: sea surface temperature and rainfall. J Clim 23:966–986

    Article  Google Scholar 

  • Yamagata T, Behera SK, Luo JJ, Masson S, Jury MR, and Rao SA (2004) Coupled ocean–atmosphere variability in the tropical Indian Ocean. Earth’s Climate: The Ocean–atmosphere Interaction, Geophys. Monogr., Vol. 147, Amer. Geophys. Union, 189–211

  • Yeager SG, Shields CA, Large WG, Hack JJ (2006) The low-resolution CCSM3. J Clim 19:2545–2566

    Article  Google Scholar 

  • Zheng X-T, Xie S-P, Vecchi GA, Liu Q, Hafner J (2010) Indian Ocean dipole response to global warming: analysis of ocean-atmospheric feedbacks in a coupled model. J Clim 23:1240–1253

    Article  Google Scholar 

  • Zheng X-T, Xie S-P, Du Y, Liu L, Huang G, Liu Q (2013) Indian Ocean dipole response to global warming in the CMIP5 multimodel ensemble*. J Clim 26:6067–6080

    Article  Google Scholar 

Download references

Acknowledgments

The authors would like to acknowledge helpful suggestions from Dr. Xiaotong Zheng. WL is supported by NSF AGS-1249145. JL was supported by the Office of Science of the US Department of Energy as part of the Regional and Global Climate Modeling program.

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Authors and Affiliations

  1. Scripps Institution of Oceanography (CASPO), University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA

    Wei Liu & Shang-Ping Xie

  2. Pacific Northwest National Laboratory, Richland, WA, USA

    Jian Lu

Authors
  1. Wei Liu
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  2. Jian Lu
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  3. Shang-Ping Xie
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Correspondence to Wei Liu.

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Responsible Editor: Xiaoming Zhai

This article is part of the Topical Collection on Atmosphere and Ocean Dynamics: A Scientific Workshop to Celebrate Professor Dr. Richard Greatbatch's 60th Birthday, Liverpool, UK, 10-11 April 2014

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Liu, W., Lu, J. & Xie, SP. Understanding the Indian Ocean response to double CO2 forcing in a coupled model. Ocean Dynamics 65, 1037–1046 (2015). https://doi.org/10.1007/s10236-015-0854-6

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  • DOI: https://doi.org/10.1007/s10236-015-0854-6

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