Brief communication: Arctic sea ice thickness internal variability and its changes under historical and anthropogenic forcing

We use model simulations from the CESM1-CAM5-BGC-LE dataset to characterise the Arctic sea ice thickness internal variability both spatially and temporally. These properties, and their stationarity, are investigated in three different contexts: (1) constant pre-industrial, (2) historical and (3) pro...

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Bibliographic Details
Published in:The cryosphere 2020-10, Vol.14 (10), p.3479-3486
Main Authors: Van Achter, Guillian, Ponsoni, Leandro, Massonnet, François, Fichefet, Thierry, Legat, Vincent
Format: Article
Language:English
Subjects:
Anthropogenic factors
Arctic sea ice
Atmosphere
Climate change
Communication
Datasets
Ice cover
Ice thickness
Polar environments
Sea ice
Sea ice thickness
Thickness
Time series
Trends
Variability
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Summary:We use model simulations from the CESM1-CAM5-BGC-LE dataset to characterise the Arctic sea ice thickness internal variability both spatially and temporally. These properties, and their stationarity, are investigated in three different contexts: (1) constant pre-industrial, (2) historical and (3) projected conditions. Spatial modes of variability show highly stationary patterns regardless of the forcing and mean state. A temporal analysis reveals two peaks of significant variability, and despite a non-stationarity on short timescales, they remain more or less stable until the first half of the 21st century, where they start to change once summer ice-free events occur, after 2050.
ISSN:1994-0424
1994-0416
1994-0424
1994-0416
DOI:10.5194/tc-14-3479-2020