Arctic sea-ice loss fuels extreme European snowfall

  title={Arctic sea-ice loss fuels extreme European snowfall},
  author={Hannah L. Bailey and Alun Hubbard and Eric S. Klein and Kaisa-Riikka Mustonen and Pete D. Akers and Hannu Marttila and Jeffrey M. Welker},
  journal={Nature Geoscience},
  pages={283 - 288}
The loss of Arctic sea-ice has been implicated with severe cold and snowy mid-latitude winters. However, the mechanisms and a direct link remain elusive due to limited observational evidence. Here we present atmospheric water vapour isotope measurements from Arctic Finland during ‘the Beast from the East’—a severe anticyclonic outbreak that brought heavy snowfall and freezing across Europe in February 2018. We find that an anomalously warm Barents Sea, with a 60% ice-free surface, supplied up… 
Arctic Snow Isotope Hydrology: A Comparative Snow-Water Vapor Study
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Arctic sea-ice loss is emblematic of an amplified Arctic water cycle and has critical feedback implications for global climate. Stable isotopes (δ18O, δ2H, d-excess) are valuable tracers for
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An NAO-dominated mode of atmospheric circulation drives large decadal changes in wintertime surface climate and snow mass over Eurasia
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The missing Northern European winter cooling response to Arctic sea ice loss
  • J. Screen
  • Environmental Science
    Nature communications
  • 2017
Despite an intensification of NAO− events, reflected by more prevalent easterly flow, sea ice loss does not lead to Northern European winter cooling and daily cold extremes actually decrease; the dynamical cooling from the changed NAO is ‘missing', because it is offset by a thermodynamical effect owing to advection of warmer air masses.
Arctic warming hotspot in the northern Barents Sea linked to declining sea-ice import
The Arctic has warmed dramatically in recent decades, with greatest temperature increases observed in the northern Barents Sea. The warming signatures are not constrained to the atmosphere, but
Impact of declining Arctic sea ice on winter snowfall
It is concluded that the recent decline of Arctic sea ice has played a critical role in recent cold and snowy winters.
Consistency and discrepancy in the atmospheric response to Arctic sea-ice loss across climate models
The decline of Arctic sea ice is an integral part of anthropogenic climate change. Sea-ice loss is already having a significant impact on Arctic communities and ecosystems. Its role as a cause of
Weakening of the stratospheric polar vortex by Arctic sea-ice loss.
It is found that decreased sea-ice cover during early winter months (November-December), especially over the Barents-Kara seas, enhances the upward propagation of planetary-scale waves with wavenumbers of 1 and 2, subsequently weakening the stratospheric polar vortex in mid-winter (January-February).
Changing state of Arctic sea ice across all seasons
The decline in the floating sea ice cover in the Arctic is one of the most striking manifestations of climate change. In this review, we examine this ongoing loss of Arctic sea ice across all
Seasonal and Regional Manifestation of Arctic Sea Ice Loss
The Arctic Ocean is currently on a fast track toward seasonally ice-free conditions. Although most attention has been on the accelerating summer sea ice decline, large changes are also occurring in
Future Arctic sea-ice loss reduces severity of cold air outbreaks in midlatitudes
The effects of Arctic sea ice loss on cold air outbreaks (CAOs) in midlatitudes remain unclear. Previous studies have defined CAOs relative to the present‐day climate, but changes in CAOs, defined in
Vertical Feedback Mechanism of Winter Arctic Amplification and Sea Ice Loss
Detailed physical mechanism of sea ice reduction in winter (December–February) is identified from the daily ERA interim reanalysis data and it is revealed that this feedback process is being amplified at the rate of ~8.9% every year during 1979–2016.
Future increases in Arctic precipitation linked to local evaporation and sea-ice retreat
It is shown that the enhanced surface evaporation results mainly from retreating winter sea ice, signalling an amplified Arctic hydrological cycle, and demonstrates that increases in Arctic precipitation are firmly linked to Arctic warming and sea-ice decline.