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Climate Dynamics

, Volume 40, Issue 1–2, pp 143–153 | Cite as

Heat budget of the upper Arctic Ocean under a warming climate

  • Tim GrahamEmail author
  • Michael Vellinga
Article

Abstract

The heat budget of the upper Arctic Ocean is examined in an ensemble of coupled climate models under idealised increasing CO2 scenarios. All of the experiments show a strong amplification of surface air temperatures but a smaller increase in sea surface temperature than the rest of the world as heat is lost to the atmosphere as the sea-ice cover is reduced. We carry out a heat budget analysis of the Arctic Ocean in an ensemble of model runs to understand the changes that occur as the Arctic becomes ice free in summer. We find that as sea-ice retreats heat is lost from the ocean surface to the atmosphere contributing to the amplification of Arctic surface temperatures. Furthermore, heat is mixed upwards into the mixed layer as a result of increased upper ocean mixing and there is increased advection of heat into the Arctic as the ice edge retreats. Heat lost from the upper Arctic Ocean to the atmosphere is therefore replenished by mixing of warmer water from below and by increased advection of warm water from lower latitudes. The ocean is therefore able to contribute more to Arctic amplification.

Keywords

Arctic Ocean Heat content Arctic amplification Sea-ice 

Notes

Acknowledgments

This work was supported by the Joint DECC/Defra Met Office Hadley Centre Climate Programme (GA01101). We would also like to acknowledge Jeff Ridley, Peili Wu and and Angus Ferraro for their valued comments during this research and Glen Harris for his guidance in setting up the PPE. Finally thank you to the two anonymous reviewers for their helpful comments and suggestions

References

  1. Bitz C, Gent P, Woodgate R, Holland M, Lindsay R (2006) The influence of sea ice on ocean heat uptake in response to increasing CO2. J Clim 19:2437–2450CrossRefGoogle Scholar
  2. Boé J, Hall A, Qu X (2009) Current GCMs’ unrealistic negative feedback in the Arctic. J Clim 22:4682–4695. doi: 10.1175/2009JCLI2885.1 CrossRefGoogle Scholar
  3. Christensen J, Hewitson B, Busuioc A, Chen A, Gao X, Held I, Jones R, Kolli R, Kwon W, Laprise R, Magana Rueda V, Mearns L, Menendez C, Raisanen J, Rinke A, Sarr A, Whetton P (2007) Chapter 11: Regional climate projections. In: Climate change 2007: The physical science basis. Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change, Cambridge University Press, CambridgeGoogle Scholar
  4. Gordon C, Cooper C, Senior C, Banks H, Gregory J, Johns T, Mitchell J, Wood R (2000) The simulation of SST, sea ice extents and ocean heat transports in a version of the Hadley Centre coupled model without flux adjustments. Clim Dyn 16:147–168CrossRefGoogle Scholar
  5. Hunke E, Dukowicz J (1997) An elastic-viscous-plastic model for sea ice dynamics. J Phys Oceanogr 27(9):1849–1867CrossRefGoogle Scholar
  6. Hunke E, Lipscomb W (2004) Cice: the los alamos sea ice model, documentation and software, version 3.1. Los Alamos National Laboratory, LA-CC-98-16Google Scholar
  7. Jackson J, Carmack E, McLaughlin F, Allen S, Ingram R (2010) Identification, characterization, and change of the near-surface temperature maximum in the canada basin, 1993–2008. J Geophys Res 115. doi: 10.1029/2009JC005265
  8. Johannessen O, Bengtsson L, Miles M, Kuzmina S, Semenov V, Alekseev G, Nagurnyi A, Zakhorov V, Bobylev L, Pettersson L, Hasselmann K, Cattle H (2004) Arctic climate change: observed and modelled temperature and sea-ice variability. Tellus A 56(4):328–341. doi: 10.1111/j.1600-0870.2004.00060.x CrossRefGoogle Scholar
  9. Johns T, Durman C, Banks H, Roberts M, McLaren A, Ridley J, Senior C, Williams K, Jones A, Rickard G, Cusack S, Ingram W, Crucifix M, Sexton D, Joshi M, Dong BW, Spencer H, Hill R, Gregory J, Keen A, Pardaens A, Lowe J, Bodas-Salcedo A, Stark S, Searl Y (2006) The new Hadley Centre climate model HadGEM1: evaluation of coupled simulations. J Clim 19(7):1327–1353CrossRefGoogle Scholar
  10. Kraus E, Turner J (1967) A one dimensional model of the seasonal thermocline. Part II. Tellus A 19:98–105CrossRefGoogle Scholar
  11. Lipscomb W (2001) Remapping the thickness distribution in sea ice models. J Geophys Res 106(C7):13CrossRefGoogle Scholar
  12. Manabe S, Stouffer R (1980) Sensitivity of a global climate model to an increase of CO2 concentration in the atmosphere. J Geophys Res 85:5529–5554CrossRefGoogle Scholar
  13. Manabe S, Wetherald R (1975) The effects of doubling the CO2 concentration on the climate of a general circulation model. J Atmos Sci 32:3–15CrossRefGoogle Scholar
  14. McLaren A, Banks H, Durman C, Gregory J, Johns T, Keen A, Ridley J, Roberts M, Lipscomb W, Connolley W, Laxon S (2006) Evaluation of the sea ice simulation in a new coupled atmosphere-ocean climate model (HadGEM1). J Geophys Res 111:C12014. doi: 10.1029/2005JC003033 CrossRefGoogle Scholar
  15. McPhee M, Proshutinsky A, Morison J, Steele M, Alkire M (2009) Rapid change in freshwater content of the Arctic Ocean. Geophys Res Lett 36:L10602. doi: 10.1029/2009GL037525 CrossRefGoogle Scholar
  16. Paulson C, Simpson J (1977) Irradiance measurements in the upper ocean. J Phys Oceanogr 7:952–956CrossRefGoogle Scholar
  17. Polyakov I, Timokhov L, Alexeev V, Bacon S, Dmitrenko I, Fortier L, Frolov I, Gascard J, Hansen E, Ivanov V et al (2010) Arctic ocean warming contributes to reduced polar ice cap. J Phys Oceanogr 40(12):2743–2756CrossRefGoogle Scholar
  18. Rigor IG, Colony RL, Martin S (2000) Variations in surface air temperature observations in the Arctic, 1979-97. J Clim 13(5):896–914CrossRefGoogle Scholar
  19. Screen J, Simmonds I (2010) The central role of diminishing sea-ice in recent Arctic temperature amplification. Nature 464:1334–1337. doi: 10.1038/nature09051 CrossRefGoogle Scholar
  20. Screen J, Simmonds I (2010b) Increasing fall-winter energy loss from the Arctic ocean and its role in Arctic temperature amplification. Geophys Res Lett 37:L16707. doi: 10.1029/2010GL044136 CrossRefGoogle Scholar
  21. Serreze M, Francis J (2006) The Arctic amplification debate. Clim Change 76:241–264. doi: 10.1007/s10584-005-9017-y CrossRefGoogle Scholar
  22. Steele M, Morley R, Ermold W (2001) Phc: a global ocean hydrography with a high-quality arctic ocean. J Clim 14(9):2079–2087CrossRefGoogle Scholar
  23. Steele M, Ermold W, Zhang J (2011) Modelling the formation and fate of the near-surface temperature maximum in the Canadian basin of the Arctic Ocean. J Geophys Res 116:C11015. doi: 10.1029/2010JC006803 CrossRefGoogle Scholar
  24. Tietsche S, Notz D, Jungclaus J, Marotzke J (2011) Recovery mechanisms of arctic summer sea ice. Geophys Res Lett 38:L02707CrossRefGoogle Scholar
  25. Toole J, Tinnermans M, Perovich D, Krishfield R, Proshutinsky A, Richter-Menge J (2010) Influences of the ocean surface mixed layer and thermohaline stratification on arctic sea ice in the central Canada basin. J Geophys Res 115:C10018. doi: 10.1029/2009JC005660 CrossRefGoogle Scholar
  26. Vellinga M, Wu P (2008) Relations between northward ocean and atmosphere energy transports in a coupled climate model. J Clim 21:561–575CrossRefGoogle Scholar

Copyright information

© Crown Copyright 2012

Authors and Affiliations

  1. 1.Met Ofiice Hadley CentreExeterUK

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