Articles | Volume 17, issue 8
https://doi.org/10.5194/tc-17-3269-2023
https://doi.org/10.5194/tc-17-3269-2023
Research article
 | 
15 Aug 2023
Research article |  | 15 Aug 2023

A long-term proxy for sea ice thickness in the Canadian Arctic: 1996–2020

Isolde A. Glissenaar, Jack C. Landy, David G. Babb, Geoffrey J. Dawson, and Stephen E. L. Howell

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Cited articles

Aldenhoff, W., Heuzé, C., and Eriksson, L. E. B.: Sensitivity of radar altimeter waveform changes in sea ice type at resolution of Synthetic Aperture Radar, Remote Sens., 11, 22, https://doi.org/10.3390/rs11222602, 2019. a
Alexandrov, V., Sandven, S., Wahlin, J., and Johannessen, O. M.: The relation between sea ice thickness and freeboard in the Arctic, The Cryosphere, 4, 373–380, https://doi.org/10.5194/tc-4-373-2010, 2010. a
Babb, D. G., Landy, J. C., Barber, D. G., and Galley, R. J.: Winter sea ice export from the Beaufort Sea as a preconditioning mechanism for enhanced summer melt: a case study of 2016, J. Geophys. Res.-Oceans, 124, 6575–6600, https://doi.org/10.1029/2019JC015053, 2019. a
Babb, D. G., Landy, J. C., Lukovich, J. V., Haas, C., Hendricks, S., Barber, D. G., and Galley, R. J.: The 2017 revarsal of the Beaufort Gyre: can dynamic thickening of seasonal ice cover during a reversal limit summer ice melt in the Beaufort Sea, J. Geophys. Res.-Oceans, 125, e2020JC016796, https://doi.org/10.1029/2020JC016796, 2020. a, b
Babb, D. G., Galley, R. J., Howell, S. E. L., Landy, J. C., Stroeve, J. C., and Barber, D. G.: Increasing multiyear sea ice loss in the Beaufort Sea: a new export pathway for the diminishing multiyear ice cover of the Arctic Ocean, Geophys. Res. Lett., 49, e2021GL097595, https://doi.org/10.1029/2021GL097595, 2022. a, b, c
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Short summary
Observations of large-scale ice thickness have unfortunately only been available since 2003, a short record for researching trends and variability. We generated a proxy for sea ice thickness in the Canadian Arctic for 1996–2020. This is the longest available record for large-scale sea ice thickness available to date and the first record reliably covering the channels between the islands in northern Canada. The product shows that sea ice has thinned by 21 cm over the 25-year record in April.