Articles | Volume 18, issue 3
https://doi.org/10.5194/tc-18-1157-2024
https://doi.org/10.5194/tc-18-1157-2024
Research article
 | 
12 Mar 2024
Research article |  | 12 Mar 2024

Sea ice cover in the Copernicus Arctic Regional Reanalysis

Yurii Batrak, Bin Cheng, and Viivi Kallio-Myers

Data sets

Monthly total freeboard and snow depth over Arctic sea ice from AMSR-E&2 and AVHRR measurements (2003-2020) (Version 3) S.-M. Lee et al. https://doi.org/10.5281/zenodo.5081765

IceBridge L4 Sea Ice Freeboard, Snow Depth, and Thickness, Version 1 N. Kurtz et al. https://doi.org/10.5067/G519SHCKWQV6

IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Quick Look, Version 1 N. Kurtz et al. https://doi.org/10.5067/GRIXZ91DE0L9

N-ICE2015 buoy data P. Itkin et al. https://doi.org/10.21334/npolar.2015.6ed9a8ca

CLARA-A2.1: CM SAF cLoud, Albedo and surface RAdiation dataset from AVHRR data - Edition 2.1 Karl-Göran Karlsson et al. https://doi.org/10.5676/EUM_SAF_CM/CLARA_AVHRR/V002_01

Arctic regional reanalysis on single levels from 1991 to present H. Schyberg et al. https://doi.org/10.24381/cds.713858f6

ERA5 hourly data on single levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.adbb2d47

MODIS/Terra Sea Ice Extent 5-Min L2 Swath 1km, Version 6 D. K. Hall and G. Riggs https://doi.org/10.5067/MODIS/MOD29.006

MODIS/Aqua Sea Ice Extent 5-Min L2 Swath 1km, Version 6 D. K. Hall and G. Riggs https://doi.org/10.5067/MODIS/MYD29.006

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Short summary
Atmospheric reanalyses provide consistent series of atmospheric and surface parameters in a convenient gridded form. In this paper, we study the quality of sea ice in a recently released regional reanalysis and assess its added value compared to a global reanalysis. We show that the regional reanalysis, having a more complex sea ice model, gives an improved representation of sea ice, although there are limitations indicating potential benefits in using more advanced approaches in the future.