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Hans Chen

Hans Chen

Researcher

Hans Chen

Divergent consensuses on Arctic amplification influence on midlatitude severe winter weather

Author

  • J. Cohen
  • X. Zhang
  • J. Francis
  • T. Jung
  • R. Kwok
  • J. Overland
  • T. J. Ballinger
  • U. S. Bhatt
  • H. W. Chen
  • D. Coumou
  • S. Feldstein
  • H. Gu
  • D. Handorf
  • G. Henderson
  • M. Ionita
  • M. Kretschmer
  • F. Laliberte
  • S. Lee
  • H. W. Linderholm
  • W. Maslowski
  • Y. Peings
  • K. Pfeiffer
  • I. Rigor
  • T. Semmler
  • J. Stroeve
  • P. C. Taylor
  • S. Vavrus
  • T. Vihma
  • S. Wang
  • M. Wendisch
  • Y. Wu
  • J. Yoon

Summary, in English

The Arctic has warmed more than twice as fast as the global average since the late twentieth century, a phenomenon known as Arctic amplification (AA). Recently, there have been considerable advances in understanding the physical contributions to AA, and progress has been made in understanding the mechanisms that link it to midlatitude weather variability. Observational studies overwhelmingly support that AA is contributing to winter continental cooling. Although some model experiments support the observational evidence, most modelling results show little connection between AA and severe midlatitude weather or suggest the export of excess heating from the Arctic to lower latitudes. Divergent conclusions between model and observational studies, and even intramodel studies, continue to obfuscate a clear understanding of how AA is influencing midlatitude weather.

Department/s

  • Dept of Physical Geography and Ecosystem Science
  • MERGE: ModElling the Regional and Global Earth system
  • BECC: Biodiversity and Ecosystem services in a Changing Climate

Publishing year

2020-01

Language

English

Pages

20-29

Publication/Series

Nature Climate Change

Volume

10

Document type

Journal article review

Publisher

Nature Research

Topic

  • Climate Research
  • Meteorology and Atmospheric Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 1758-678X