The influence of recent and future climate change on spring Arctic cyclones

Chelsea L. Parker (), Priscilla A. Mooney, Melinda A. Webster and Linette N. Boisvert
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Chelsea L. Parker: NASA Goddard Space Flight Center
Priscilla A. Mooney: Bjerknes Centre for Climate Research
Melinda A. Webster: Geophysical Institute
Linette N. Boisvert: NASA Goddard Space Flight Center

Nature Communications, 2022, vol. 13, issue 1, 1-14

Abstract: Abstract In recent decades, the Arctic has experienced rapid atmospheric warming and sea ice loss, with an ice-free Arctic projected by the end of this century. Cyclones are synoptic weather events that transport heat and moisture into the Arctic, and have complex impacts on sea ice, and the local and global climate. However, the effect of a changing climate on Arctic cyclone behavior remains poorly understood. This study uses high resolution (4 km), regional modeling techniques and downscaled global climate reconstructions and projections to examine how recent and future climatic changes alter cyclone behavior. Results suggest that recent climate change has not yet had an appreciable effect on Arctic cyclone characteristics. However, future sea ice loss and increasing surface temperatures drive large increases in the near-surface temperature gradient, sensible and latent heat fluxes, and convection during cyclones. The future climate can alter cyclone trajectories and increase and prolong intensity with greatly augmented wind speeds, temperatures, and precipitation. Such changes in cyclone characteristics could exacerbate sea ice loss and Arctic warming through positive feedbacks. The increasing extreme nature of these weather events has implications for local ecosystems, communities, and socio-economic activities.

Date: 2022
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DOI: 10.1038/s41467-022-34126-7

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