Major cause of unprecedented Arctic warming in January 2016: Critical role of an Atlantic windstorm
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- Major cause of unprecedented Arctic warming in January 2016: Critical role of an Atlantic windstorm
- Other Titles
- 2016년 1월의 이례적인 북극 온난화의 주요 원인: 대서양 스톰의 중요한 역할
- Kim, Baek-Min
- Science & Technology - Other Topics
- 대서양 스톰; 북극 온난화; 북극해빙; 블로킹
- Issue Date
- Kim, Baek-Min, et al. 2017. "Major cause of unprecedented Arctic warming in January 2016: Critical role of an Atlantic windstorm". SCIENTIFIC REPORTS(0): 40051-NaN.
- In January 2016, the Arctic experienced an extremely anomalous warming event after an extraordinary increase in air temperature at the end of 2015. During this event, a strong intrusion of warm and moist air and an increase in downward longwave radiation, as well as a loss of sea ice in the Barents and Kara Seas, were observed. Observational analyses revealed that the abrupt warming was triggered by the entry of a strong Atlantic windstorm into the Arctic in late December 2015, which brought enormous moist and warm air masses to the Arctic. Although the storm terminated at the eastern coast of Greenland in late December, it was followed by a prolonged blocking period in early 2016 that sustained the extreme Arctic warming. Numerical experiments indicate that the warming effect of sea ice loss and associated upward turbulent heat fluxes are relatively minor in this event. This result suggests the importance of the synoptically driven warm and moist air intrusion into the Arctic as a primary contributing factor of this extreme Arctic warming event.
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