Arctic sea ice area changes in CMIP3 and CMIP5 climate models’ ensembles

The shrinking Arctic sea ice cover observed during the last decades is probably the clearest manifestation of ongoing climate change. While climate models in general reproduce the sea ice retreat in the Arctic during the 20th century and simulate further sea ice area loss during the 21st century in response to anthropogenic forcing, the models suffer from large biases and the results exhibit considerable spread. Here, we compare results from the two last generations of climate models, CMIP3 and CMIP5, with respect to total and regional Arctic sea ice change. Different characteristics of sea ice area (SIA) in March and September have been analysed for the Entire Arctic, Central Arctic and Barents Sea. Further, the sensitivity of SIA to changes in Northern Hemisphere (NH) temperature is investigated and dynamical links between SIA and some atmospheric variability modes are assessed. CMIP3 (SRES A1B) and CMIP5 (RCP8.5) models not only simulate a coherent decline of the Arctic SIA but also depict consistent changes in the SIA seasonal cycle. The spatial patterns of SIC variability improve in CMIP5 ensemble, most noticeably in summer when compared to HadISST1 data. A better simulation of summer SIA in the Entire Arctic by CMIP5 models is accompanied by a slightly increased bias for winter season in comparison to CMIP3 ensemble. SIA in the Barents Sea is strongly overestimated by the majority of CMIP3 and CMIP5 models, and projected SIA changes are characterized by a high uncertainty. Both CMIP ensembles depict a significant link between the SIA and NH temperature changes indicating that a part of inter-ensemble SIA spread comes from different temperature sensitivity to anthropogenic forcing. The results suggest that, in general, a sensitivity of SIA to external forcing is enhanced in CMIP5 models. Arctic SIA interannual variability in the end of the 20th century is on average well simulated by both ensembles. To the end of the 21st century, September variability is strongly reduced in CMIP5 models under RCP8.5 scenario, whereas variability changes in CMIP3 and in both ensembles in March are relatively small. The majority of models in both CMIP ensembles demonstrate an ability to capture a negative correlation of interannual SIA variations in the Barents Sea with North Atlantic Oscillation and sea level pressure gradient in the western Barents Sea opening serving as an index of oceanic inflow to the Sea.

[1]  М Г Акперов,et al.  Влияние океанического притока тепла в Баренцево море на региональные изменения ледовитости и статической устойчивости атмосферы , 2019 .

[2]  John F. B. Mitchell,et al.  THE WCRP CMIP 3 MULTIMODEL DATASET A New Era in Climate Change Research , 2017 .

[3]  VASemenov andMLatif,et al.  Nonlinear winter atmospheric circulation response to Arctic sea ice concentration anomalies for different periods during 1966–2012 , 2015 .

[4]  John E. Walsh,et al.  Intensified warming of the Arctic: Causes and impacts on middle latitudes , 2014 .

[5]  Timo Vihma,et al.  Effects of Arctic Sea Ice Decline on Weather and Climate: A Review , 2014, Surveys in Geophysics.

[6]  T. Mauritsen,et al.  Arctic amplification dominated by temperature feedbacks in contemporary climate models , 2014 .

[7]  Karl-Göran Karlsson,et al.  Summer Arctic sea ice albedo in CMIP5 models , 2014 .

[8]  Dirk Notz,et al.  Sea-ice extent and its trend provide limited metrics of model performance , 2014 .

[9]  W. Fitzhugh,et al.  Arctic sea-ice decline archived by multicentury annual-resolution record from crustose coralline algal proxy , 2013, Proceedings of the National Academy of Sciences.

[10]  Camille Li,et al.  THE ROLE OF THE BARENTS SEA IN THE ARCTIC CLIMATE SYSTEM , 2013 .

[11]  J. Karlsson,et al.  Consequences of poor representation of Arctic sea‐ice albedo and cloud‐radiation interactions in the CMIP5 model ensemble , 2013 .

[12]  M. Holland,et al.  The Role of Natural Versus Forced Change in Future Rapid Summer Arctic Ice Loss , 2013 .

[13]  C. Tebaldi,et al.  Long-term Climate Change: Projections, Commitments and Irreversibility , 2013 .

[14]  Ed Hawkins,et al.  Identifying uncertainties in Arctic climate change projections , 2013, Climate Dynamics.

[15]  M. Latif,et al.  The early twentieth century warming and winter Arctic sea ice , 2012 .

[16]  John E. Walsh,et al.  Future Arctic marine access: analysis and evaluation of observations, models, and projections of sea ice , 2012 .

[17]  J. Annan,et al.  Sources of multi-decadal variability in Arctic sea ice extent , 2012 .

[18]  D. Cavalieri,et al.  Antarctic sea ice variability and trends, 1979-2010 , 2012 .

[19]  Karl E. Taylor,et al.  An overview of CMIP5 and the experiment design , 2012 .

[20]  J. Marotzke,et al.  Observations reveal external driver for Arctic sea‐ice retreat , 2012 .

[21]  D. Klocke,et al.  Tuning the climate of a global model , 2012 .

[22]  L. Thompson,et al.  Reconstructed changes in Arctic sea ice over the past 1,450 years , 2011, Nature.

[23]  K. Calvin,et al.  The RCP greenhouse gas concentrations and their extensions from 1765 to 2300 , 2011 .

[24]  R. Barry,et al.  Processes and impacts of Arctic amplification: A research synthesis , 2011 .

[25]  I. Polyakov,et al.  Vertical structure of recent arctic warming from observed data and reanalysis products , 2009, Climatic Change.

[26]  John E. Walsh,et al.  Arctic sea-ice change: a grand challenge of climate science , 2010, Journal of Glaciology.

[27]  V. Petoukhov,et al.  A link between reduced Barents-Kara sea ice and cold winter extremes over northern continents , 2010 .

[28]  J. Overland,et al.  Air temperature variations on the Atlantic‐Arctic boundary since 1802 , 2010 .

[29]  Vladimir A. Alexeev,et al.  Role of Polar Amplification in Long-Term Surface Air Temperature Variations and Modern Arctic Warming , 2010 .

[30]  I. Simmonds,et al.  The central role of diminishing sea ice in recent Arctic temperature amplification , 2010, Nature.

[31]  Xiangdong Zhang.  Sensitivity of arctic summer sea ice coverage to global warming forcing: towards reducing uncertainty in arctic climate change projections , 2010 .

[32]  Muyin Wang,et al.  A sea ice free summer Arctic within 30 years? , 2009 .

[33]  M. Latif,et al.  Is the observed NAO variability during the instrumental record unusual? , 2008 .

[34]  V. Semenov.  Influence of oceanic inflow to the Barents Sea on climate variability in the Arctic region , 2008 .

[35]  Wolfgang Lucht,et al.  Tipping elements in the Earth's climate system , 2008, Proceedings of the National Academy of Sciences.

[36]  L. Kaleschke,et al.  Intercomparison of passive microwave sea ice concentration retrievals over the high-concentration Arctic sea ice , 2007 .

[37]  M. Holland,et al.  Arctic sea ice decline: Faster than forecast , 2007 .

[38]  John S. Wettlaufer,et al.  On the reliability of simulated Arctic sea ice in global climate models , 2007 .

[39]  Dmitry Divine,et al.  Historical variability of sea ice edge position in the Nordic Seas , 2006 .

[40]  M. Holland,et al.  Mechanisms of decadal arctic climate variability in the community climate system model, version 2 (CCSM2) , 2005 .

[41]  J. R. Bates,et al.  Polar amplification of surface warming on an aquaplanet in “ghost forcing” experiments without sea ice feedbacks , 2005 .

[42]  L. Bengtsson,et al.  The North Atlantic Oscillation and greenhouse‐gas forcing , 2005 .

[43]  Ola M. Johannessen,et al.  The Early Twentieth-Century Warming in the Arctic—A Possible Mechanism , 2004 .

[44]  K. Hasselmann,et al.  Arctic climate change: observed and modelled temperature and sea-ice variability , 2004 .

[45]  L. Bengtsson,et al.  Modes of the wintertime Arctic temperature variability , 2003 .

[46]  Elizabeth C. Kent,et al.  Global analyses of sea surface temperature, sea ice, and night marine air temperature since the late nineteenth century , 2003 .

[47]  M. Holland,et al.  Polar amplification of climate change in coupled models , 2003 .

[48]  I. Polyakov,et al.  Long-Term Ice Variability in Arctic Marginal Seas , 2003 .

[49]  John E. Walsh,et al.  20th-century sea-ice variations from observational data , 2001, Annals of Glaciology.

[50]  L. Mysak,et al.  Is There a Dominant Timescale of Natural Climate Variability in the Arctic , 2000 .

[51]  J. Hurrell,et al.  The Arctic Ocean Response to the North Atlantic Oscillation , 2000 .

[52]  Donald J. Cavalieri,et al.  Deriving long‐term time series of sea ice cover from satellite passive‐microwave multisensor data sets , 1999 .

[53]  R. Kwok.  Recent changes in Arctic Ocean sea ice motion associated with the North Atlantic Oscillation , 1999 .

[54]  Carl Wunsch,et al.  The Interpretation of Short Climate Records, with Comments on the North Atlantic and Southern Oscillations , 1999 .

[55]  L. Mysak,et al.  Decadal climate oscillations in the Arctic: A new feedback loop for atmosphere‐ice‐ocean interactions , 1998 .

[56]  N. Bond,et al.  Regional Variation of Winter Temperatures in the Arctic , 1997 .

[57]  J. Hurrell.  Decadal Trends in the North Atlantic Oscillation: Regional Temperatures and Precipitation , 1995, Science.

[58]  J. Walsh,et al.  An Analysis of Arctic Sea Ice Fluctuations, 1953–77 , 1979 .

[59]  H. Loon,et al.  The Seesaw in Winter Temperatures between Greenland and Northern Europe. Part I: General Description , 1978 .