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Intensification of Northern Hemisphere subtropical highs in a warming climate

Abstract

Semi-permanent high-pressure systems over the subtropical oceans, known as subtropical highs, influence atmospheric circulation, as well as global climate. For instance, subtropical highs largely determine the location of the world’s subtropical deserts, the zones of Mediterranean climate and the tracks of tropical cyclones. The intensity of two such high-pressure systems, present over the Northern Hemisphere oceans during the summer, has changed in recent years. However, whether such changes are related to climate warming remains unclear. Here, we use climate model simulations from the Intergovernmental Panel on Climate Change Fourth Assessment Report, reanalysis data from the 40-year European Centre for Medium-Range Weather Forecasts, and an idealized general circulation model, to assess future changes in the intensity of summertime subtropical highs over the Northern Hemisphere oceans. The simulations suggest that these summertime highs will intensify in the twenty-first century as a result of an increase in atmospheric greenhouse-gas concentrations. We further show that the intensification of subtropical highs is predominantly caused by an increase in thermal contrast between the land and ocean. We suggest that summertime near-surface subtropical highs could play an increasingly important role in regional climate and hydrological extremes in the future.

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Figure 1: Climatology of summertime subtropical highs in the Northern Hemisphere.
Figure 2: Simulated domain-averaged summertime subtropical highs’ intensity.
Figure 3: Changes in the dominant heating component between the twenty-first- and twentieth-century run.
Figure 4: Changes in the multi-model ensemble mean vertical profile of total diabatic heatings.
Figure 5: Idealized GCM simulation.

References

  1. Rodwell, M. J. & Hoskins, B. J. Subtropical anticyclones and summer monsoon. J. Clim. 14, 3192–3211 (2001).

    Article  Google Scholar 

  2. Wu, G. et al. Multi-scale forcing and the formation of subtropical desert and monsoon. Ann. Geophys.-Germany 27, 3631–3644 (2009).

    Article  Google Scholar 

  3. Miyasaka, T. & Nakamura, H. Structure and mechanisms of the Southern Hemisphere summertime subtropical anticyclones. J. Clim. 23, 2115–2130 (2010).

    Article  Google Scholar 

  4. Davis, R. E., Hayden, B. P., Gay, D. A., Phillips, W. L. & Jones, G. V. The North Atlantic Subtropical anticyclone. J. Clim. 10, 728–744 (1997).

    Article  Google Scholar 

  5. Lu, R. & Dong, B. Westward extension of North Pacific subtropical high in summer. J. Meteorol. Soc. Jpn 79, 1229–1241 (2001).

    Article  Google Scholar 

  6. Gamble, D. W., Parnell, D. B. & Curtis, S. Spatial variability of the Caribbean mid-summer drought and relation to north Atlantic high circulation. Int. J. Climatol. 28, 343–350 (2008).

    Article  Google Scholar 

  7. Li, W., Li, L., Fu, R., Deng, Y. & Wang, H. Changes to the North Atlantic subtropical high and its role in the intensification of summer rainfall variability in the Southeastern United States. J. Clim. 24, 1499–1506 (2011).

    Article  Google Scholar 

  8. Zhou, T. & Yu, R. Atmospheric water vapor transport associated with typical anomalous summer rainfall patterns in China. J. Geophys. Res. 110, D08104 (2005).

    Google Scholar 

  9. Koicha, K. Climatological study on the relationship between the Japanese summer weather and the subtropical high in the western North Pacific. Geophyl. Mag. 43, 45–104 (1989).

    Google Scholar 

  10. Sun, S. & Ying, M. Subtropical high anomalies over the western pacific and its relations to the Asian monsoon and SST anomaly. Adv. Atmos. Sci. 16, 559–568 (1999).

    Article  Google Scholar 

  11. Kasahara, A. A comparison between geostrophic and non-geostrophic numerical forecasts of hurricane movement with the barotropic steering model. J. Meteorol. 16, 371–384 (1959).

    Article  Google Scholar 

  12. Stowasser, M., Wang, Y. & Hamilton, K. Tropical cyclone changes in the Western North Pacific in a global warming scenario. J. Clim. 20, 2378–2396 (2007).

    Article  Google Scholar 

  13. Wu, L., Wang, B. & Geng, S. Growing typhoon influence on east Asia. Geophys. Res. Lett. 32, L18703 (2005).

    Google Scholar 

  14. Klein, S. A. & Hartmann, D. L. The seasonal cycle of low stratiform clouds. J. Clim. 6, 1587–1606 (1993).

    Article  Google Scholar 

  15. Klein, S. A., Hartmann, D. L. & Norris, J. R. On the relationships among low-cloud structure, sea-surface temperature, and atmospheric circulation in the summertime Northeast Pacific. J. Clim. 8, 1140–1155 (1995).

    Article  Google Scholar 

  16. Sui, C-H., Chung, P-H. & Li, T. Interannual and interdecadal variability of the summertime western North Pacific subtropica high. Geophys. Res. Lett. 34, L11701 (2007).

    Article  Google Scholar 

  17. Zhou, T. et al. Why the Western Pacific subtropical high has extended westward since the Late 1970s. J. Clim. 22, 2199–2215 (2009).

    Article  Google Scholar 

  18. Wu, B. & Zhou, T. Oceanic origin of the interannual and interdecadal variability of the summertime western Pacific subtropical high. Geophys. Res. Lett. 35, L13701 (2008).

    Article  Google Scholar 

  19. Seager, R., Naik, N. & Vecchi, G. A. Thermodynamic and dynamic mechanisms for large-scale changes in the hydrological cycle in response to global warming. J. Clim. 23, 4651–4668 (2010).

    Article  Google Scholar 

  20. Henderson, K. G. & Vega, A. J. Regional precipitation variability in the southeastern United States. Phys. Geogr. 17, 93–112 (1996).

    Article  Google Scholar 

  21. Katz, R. W., Parlange, M. B. & Tebaldi, C. Stochastic modeling of the effects of large-scale circulation on daily weather in the southeastern US. Climatic Change 60, 189–216 (2003).

    Article  Google Scholar 

  22. Stahle, W. D. & Cleaveland, M. K. Reconstruction and analysis of spring rainfall over the Southeastern U.S for the past 1000 years. Bull. Am. Meteorol. Soc. 73, 1947–1961 (1992).

    Article  Google Scholar 

  23. Uppala, S. M. et al. The ERA-40 re-analysis. Q. J. R. Meteorol. Soc. 131, 2961–3012 (2005).

    Article  Google Scholar 

  24. Meehl, G. A. et al. The WCRP CMIP3 multi-model dataset: A new era in climate change research. Bull. Am. Meteorol. Soc. 88, 1383–1394 (2007).

    Article  Google Scholar 

  25. Nakicenovic, N. et al. IPCC Special Report on Emissions Scenarios (Cambridge Univ. Press, 2000).

    Google Scholar 

  26. Grotjahn, R. Global Atmospheric Circulations: Observations and Theories (Oxford Univ. Press, 1993).

    Google Scholar 

  27. Grotjahn, R. & Osman, M. Remote weather associated with North Pacific subtropical sea-level high properties. Int. J. Climatol. 27, 587–602 (2007).

    Article  Google Scholar 

  28. Hoskins, B. J. On the existence and intensity of summer subtropical anticyclones. Bull. Am. Meteorol. Soc. 77, 1287–1291 (1996).

    Google Scholar 

  29. Chen, P., Hoerling, M. P. & Dole, R. M. The origin of the subtropical anticyclones. J. Atmos. Sci. 58, 1827–1835 (2001).

    Article  Google Scholar 

  30. Ting, M. Maintenance of northern summer stationary waves in a GCM. J. Atmos. Sci. 51, 3268–3308 (1994).

    Article  Google Scholar 

  31. Wu, G. & Liu, Y. Summertime quadruplet heating pattern in the subtropics and the associated atmospheric circulation. Geophys. Res. Lett. 30, 1201 (2003).

    Google Scholar 

  32. Hoskins, B. J. Towards a PV- θ view of the general circulation. Tellus. Ser. AB 43, 27–35 (1991).

    Google Scholar 

  33. Wu, G. & Liu, Y. Thermal Adaptation, overshooting, dispersion, and subtropical anticyclone Part I: Thermal adaptation and overshooting. Chin. J. Atmos. Sci. 24, 433–446 (2000).

    Google Scholar 

  34. Liu, Y., Wu, G. & Ren, R. Relationship between the subtropical anticyclone and diabatic heating. J. Clim. 17, 682–698 (2004).

    Article  Google Scholar 

  35. Miyasaka, T. & Nakamura, H. Structure and formation mechanisms of the Northern hemisphere summertime subtropical highs. J. Clim. 18, 5046–5065 (2005).

    Article  Google Scholar 

  36. Hoskins, B. J. & Rodwell, M. J. A model of the Asian summer monsoon, Part I: The global scale. J. Atmos. Sci. 52, 1329–1340 (1995).

    Article  Google Scholar 

  37. Liu, Y., Hoskins, B. J. & Blackburn, M. Impacts of the Tibetan topography and heating on the summer flow over Asia. J. Meteorol. Soc. Jpn 85B, 1–19 (2007).

    Article  Google Scholar 

  38. Lu, R. Indices of the summertime western North Pacific subtropical high. Adv. Atmos. Sci. 19, 1004–1028 (2002).

    Article  Google Scholar 

  39. Park, J-Y., Jhun, J-G., Yim, S-Y. & Kim, W-M. Decadal changes in two types of the western North Pacific subtropical high in boreal summer associated with Asian summer monsoon/El Niño-Southern Oscillation connections. J. Geophys. Res. 115, D21129 (2010).

    Article  Google Scholar 

  40. Chan, S. C. & Nigam, S. Residual diagnosis of diabatic heating from ERA-40 and NCEP reanalyses: Intercomparisons with TRMM. J. Clim. 22, 414–428 (2009).

    Article  Google Scholar 

  41. Hoskins, B. J. et al. Diagnostics of the global atmospheric circulation. Based on ECMWF analysis 1979-1989. Department of Meteorology, University of Reading, Compiled as part of the UK Universities Global Atmospheric Modelling Project, WMO/TD-NO. 326 (1989).

  42. Nigam, S. On the dynamical basis for the Asian summer monsoon rainfall—El Nino relationship. J. Clim. 7, 1750–1771 (1994).

    Article  Google Scholar 

Download references

Acknowledgements

We thank the international modelling groups for providing their data for analysis, the Program for Climate Model Diagnosis and Intercomparison for collecting and archiving the model data, the JSC/CLIVAR Working Group on Coupled Modelling and their Coupled Model Intercomparison Project and Climate Simulation Panel for organizing the model data analysis activity, and the IPCC WG1 TSU for technical support. The IPCC Data Archive at Lawrence Livermore National Laboratory is supported by the Office of Science, US Department of Energy. We sincerely thank G. Wu, F. Jin and P. A. Baker for helpful discussions, P. Zhang and C. Li for graphics help, and H. M. Aird and I. Stuart for editorial assistance. This work is supported by the NSF AGS 1147608, and Y. Liu is supported by NSFC 40925015.

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W.L. led the study and wrote the manuscript; L.L. carried out data analyses, prepared Figs 14 and documented the study. Y.L. conducted the idealized GCM simulation and prepared Fig. 5, M.T. participated in science discussion. All authors contributed to the data and model interpretation and revisions.

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Correspondence to Wenhong Li.

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Li, W., Li, L., Ting, M. et al. Intensification of Northern Hemisphere subtropical highs in a warming climate. Nature Geosci 5, 830–834 (2012). https://doi.org/10.1038/ngeo1590

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