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National Center for Atmospheric Research (NCAR)
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Papers by Kara Sulia
Nature Geoscience, 2011
| www.nature.com/naturegeoscience 11 G lobal and regional climate models have highlighted the Arc... more | www.nature.com/naturegeoscience 11 G lobal and regional climate models have highlighted the Arctic as a region of particular sensitivity to climate change 1 . These model results are supported by observations showing rapid environmental change and accelerated warming relative to lower latitudes 2-6 . This sensitivity has been hypothesized to result from myriad feedbacks operating in the region. Central to these feedbacks are changes in cloud fraction, water content, phase, particle size and temperature 7-9 . Because clouds impact downwelling solar and longwave radiative fluxes, cloud-radiation feedbacks are inextricably linked to surface processes and feedbacks 7,10,11 . Cloudrelated processes have been implicated as a major factor in recent summertime sea-ice loss 12 , which has accelerated over the past decade at a rate much higher than predicted by most climate models 12-14 . The challenge of attribution becomes apparent when considering that Arctic sea-ice loss over the past 30 years can be explained by an energy surplus of just 1 W m −2 (ref. 15).
Nature Geoscience, 2011
| www.nature.com/naturegeoscience 11 G lobal and regional climate models have highlighted the Arc... more | www.nature.com/naturegeoscience 11 G lobal and regional climate models have highlighted the Arctic as a region of particular sensitivity to climate change 1 . These model results are supported by observations showing rapid environmental change and accelerated warming relative to lower latitudes 2-6 . This sensitivity has been hypothesized to result from myriad feedbacks operating in the region. Central to these feedbacks are changes in cloud fraction, water content, phase, particle size and temperature 7-9 . Because clouds impact downwelling solar and longwave radiative fluxes, cloud-radiation feedbacks are inextricably linked to surface processes and feedbacks 7,10,11 . Cloudrelated processes have been implicated as a major factor in recent summertime sea-ice loss 12 , which has accelerated over the past decade at a rate much higher than predicted by most climate models 12-14 . The challenge of attribution becomes apparent when considering that Arctic sea-ice loss over the past 30 years can be explained by an energy surplus of just 1 W m −2 (ref. 15).