Articles | Volume 2, issue 4
Weather Clim. Dynam., 2, 1245–1261, 2021
https://doi.org/10.5194/wcd-2-1245-2021
Weather Clim. Dynam., 2, 1245–1261, 2021
https://doi.org/10.5194/wcd-2-1245-2021

Research article 16 Dec 2021

Research article | 16 Dec 2021

Impact of Eurasian autumn snow on the winter North Atlantic Oscillation in seasonal forecasts of the 20th century

Martin Wegmann et al.

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on wcd-2021-52', Anonymous Referee #1, 19 Aug 2021
    • AC1: 'Reply on RC1', Martin Wegmann, 14 Oct 2021
  • RC2: 'Comment on wcd-2021-52', Anonymous Referee #2, 31 Aug 2021
    • AC2: 'Reply on RC2', Martin Wegmann, 14 Oct 2021
  • RC3: 'Comment on wcd-2021-52', Anonymous Referee #3, 04 Sep 2021
    • AC3: 'Reply on RC3', Martin Wegmann, 14 Oct 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Martin Wegmann on behalf of the Authors (14 Oct 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (18 Oct 2021) by Daniela Domeisen
RR by Anonymous Referee #1 (18 Oct 2021)
RR by Nicholas Tyrrell (27 Oct 2021)
RR by Anonymous Referee #3 (01 Nov 2021)
ED: Publish subject to technical corrections (09 Nov 2021) by Daniela Domeisen
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Short summary
Northern Hemisphere winter weather is influenced by the strength of westerly winds 30 km above the surface, the so-called polar vortex. Eurasian autumn snow cover is thought to modulate the polar vortex. So far, however, the modeled influence of snow on the polar vortex did not fit the observed influence. By analyzing a model experiment for the time span of 110 years, we could show that the causality of this impact is indeed sound and snow cover can weaken the polar vortex.