Letter | Published:

Towards a rain-dominated Arctic

Nature Climate Change volume 7, pages 263267 (2017) | Download Citation

Abstract

Climate models project a strong increase in Arctic precipitation over the coming century1, which has been attributed primarily to enhanced surface evaporation associated with sea-ice retreat2. Since the Arctic is still quite cold, especially in winter, it is often (implicitly) assumed that the additional precipitation will fall mostly as snow3. However, little is known about future changes in the distributions of rainfall and snowfall in the Arctic. Here we use 37 state-of-the-art climate models in standardized twenty-first-century (2006–2100) simulations4 to show a decrease in average annual Arctic snowfall (70°–90° N), despite the strong precipitation increase. Rain is projected to become the dominant form of precipitation in the Arctic region (2091–2100), as atmospheric warming causes a greater fraction of snowfall to melt before it reaches the surface, in particular over the North Atlantic and the Barents Sea. The reduction in Arctic snowfall is most pronounced during summer and autumn when temperatures are close to the melting point, but also winter rainfall is found to intensify considerably. Projected (seasonal) trends in rainfall and snowfall will heavily impact Arctic hydrology (for example, river discharge, permafrost melt)5,6,7, climatology (for example, snow, sea-ice albedo and melt)8,9 and ecology (for example, water and food availability)5,10.

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References

  1. 1.

    et al. in Climate Change 2013: The Physical Science Basis (eds Stocker, T. F. et al.) 1029–1136 (IPCC, Cambridge Univ. Press, 2013).

  2. 2.

    & Future increases in Arctic precipitation linked to local evaporation and sea ice retreat. Nature 509, 479–482 (2014).

  3. 3.

    , , , & Impact of declining Arctic sea ice on winter snowfall. Proc. Natl Acad. Sci. USA 109, 4074–4079 (2012).

  4. 4.

    , & An overview of CMIP5 and the experiment design. Bull. Am. Meteorol. Soc. 93, 485–498 (2012).

  5. 5.

    ACIA Arctic Climate Impact Assessment (Cambridge Univ. Press, 2005).

  6. 6.

    , & A precipitation shift from snow towards rain leads to a decrease in streamflow. Nat. Clim. Change 4, 583–586 (2014).

  7. 7.

    , & Extreme events in streams and rivers in arctic and subarctic regions in an uncertain future. Freshwat. Biol. 60, 2535–2546 (2015).

  8. 8.

    et al. The changing face of Arctic snow cover: a synthesis of observed and projected changes. Ambio 40, 17–31 (2011).

  9. 9.

    & Declining summer snowfall in the Arctic: causes, impacts and feedbacks. Clim. Dynam. 38, 2243–2256 (2012).

  10. 10.

    et al. Climate events synchronize the dynamics of a resident vertebrate community in the high Arctic. Science 339, 313–315 (2013).

  11. 11.

    & Robust responses of the hydrological cycle to global warming. J. Clim. 19, 5686–5699 (2006).

  12. 12.

    et al. The changing atmospheric water cycle in polar regions in a warmer climate. Tellus A 63, 907–920 (2011).

  13. 13.

    , & Human-induced Arctic moistening. Science 320, 518–520 (2008).

  14. 14.

    et al. Amplified melt and flow of the Greenland ice sheet driven by late-summer cyclonic rainfall. Nat. Geosci. 8, 647–656 (2015).

  15. 15.

    & The changing seasonal cycle in the Arctic. Nat. Sci. Rep. 3, 1556 (2013).

  16. 16.

    & Influence of temperature and precipitation variability on near-term snow trends. Clim. Dynam. 45, 1099–1116 (2015).

  17. 17.

    Warmer climate: less or more snow? Clim. Dynam. 30, 307–319 (2008).

  18. 18.

    et al. Projected changes in Arctic Ocean freshwater budgets. J. Geophys. Res. 112, G04S55 (2007).

  19. 19.

    , & Effects of snow physical parameters on shortwave broadband albedos. J. Geophys. Res. 108, 4616 (2003).

  20. 20.

    , & Icing conditions over Northern Eurasia in changing climate. Environ. Res. Lett. 10, 025003 (2015).

  21. 21.

    & The Arctic Climate System 385 (Cambridge Univ. Press, 2005).

  22. 22.

    & Controls of global snow under a changed climate. J. Clim. 26, 5537–5562 (2013).

  23. 23.

    & The central role of diminshing sea ice in recent Arctic temperature amplification. Nature 464, 1334–1337 (2010).

  24. 24.

    , , & Future changes in northern hemisphere snowfall. J. Clim. 26, 7813–7828 (2013).

  25. 25.

    et al. The JRA-55 reanalysis: general specifications and basic characteristics. J. Meteorol. Soc. Jpn 93, 5–48 (2015).

  26. 26.

    , , , & Modeling the impact of wintertime rain events on the thermal regime of permafrost. Cryosphere 5, 1697–1736 (2011).

  27. 27.

    & Hydrological response of a high-Arctic catchment to changing climate over the past 35 years: a case study of Bayelva watershed, Svalbard. Polar Res. 32, 19691 (2013).

  28. 28.

    & Effect of winter snow and ground-icing on a Svalbard reindeer population: results of a simple snowpack model. Arct. Antarct. Alp. Res. 36, 333–341 (2004).

  29. 29.

    et al. Climate change and Arctic ecosystems: 2. Modeling, paleodata-model comparisons, and future projections. J. Geophys. Res. 108, 8171 (2003).

  30. 30.

    & Arctic climate change with a 2 °C global warming: timing, climate patterns and vegetation change. Climatic Change 79, 213–241 (2006).

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Acknowledgements

We acknowledge the World Climate Research Programme’s Working Group on Coupled Modelling, which is responsible for CMIP, and we thank all climate-modelling groups for producing and making available their model output. For CMIP the US Department of Energy’s Program for Climate Model Diagnosis and Intercomparison provides coordinating support and led the development of software infrastructure in partnership with the Global Organization for Earth System Science Portals. We are grateful to the EC-Earth consortium for their contribution to the development of the Earth System Model EC-Earth. We thank M. Loonen and F. Selten for their comments on earlier versions of the manuscript.

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Affiliations

  1. Royal Netherlands Meteorological Institute (KNMI), Utrechtseweg 297, 3731GA De Bilt, The Netherlands

    • R. Bintanja
    •  & O. Andry
  2. Energy and Sustainability Research Institute Groningen (ESRIG), University of Groningen, Nijenborgh 6/7, 9747 AG Groningen, The Netherlands

    • R. Bintanja

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Contributions

R.B. developed the ideas that led to this paper. R.B. analysed the climate model simulations, while O.A. analysed the reanalyses data. R.B. wrote the main paper, with input from O.A. All authors discussed the results and implications and commented on the manuscript at all stages.

Competing interests

The authors declare no competing financial interests.

Corresponding author

Correspondence to R. Bintanja.

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DOI

https://doi.org/10.1038/nclimate3240

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