Articles | Volume 14, issue 7
https://doi.org/10.5194/tc-14-2159-2020
https://doi.org/10.5194/tc-14-2159-2020
Research article
 | 
02 Jul 2020
Research article |  | 02 Jul 2020

Modeling the annual cycle of daily Antarctic sea ice extent

Mark S. Handcock and Marilyn N. Raphael

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ED: Publish subject to minor revisions (review by editor) (02 Apr 2020) by Ted Maksym
AR by Lorena Grabowski on behalf of the Authors (21 Apr 2020)  Author's response
ED: Publish subject to technical corrections (06 May 2020) by Ted Maksym
AR by Mark Handcock on behalf of the Authors (20 May 2020)  Author's response    Manuscript
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Short summary
Traditional methods of calculating the annual cycle of sea ice extent disguise the variation of amplitude and timing (phase) of the advance and retreat of the ice. We present a multiscale model that explicitly allows them to vary, resulting in a much improved representation of the cycle. We show that phase is the dominant contributor to the variability in the cycle and that the anomalous decay of Antarctic sea ice in 2016 was due largely to a change of phase.