Ocean Science
Ocean Science
OS
Articles | Volume 18, issue 5
Articles | Volume 18, issue 5
https://doi.org/10.5194/os-18-1535-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-18-1535-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 5
Research article
 | 
25 Oct 2022
Research article |  | 25 Oct 2022

The role of oceanic heat flux in reducing thermodynamic ice growth in Nares Strait and promoting earlier collapse of the ice bridge

Sergei Kirillov, Igor Dmitrenko, David G. Babb, Jens K. Ehn, Nikolay Koldunov, Søren Rysgaard, David Jensen, and David G. Barber

Data sets

1km-res FESOM2 data for Nares Strait Sergei Kirillov and Nikolay Koldunov https://doi.org/10.5281/zenodo.6360063

ATLAS/ICESat-2 L3A Sea Ice Height R. Kwok, G. Cunningham, T. Markus, D. Hancock, J. H. Morison, S. P. Palm, S. L. Farrell, A. Ivanoff, J. Wimert, and the ICESat-2 Science Team https://doi.org/10.5067/ATLAS/ATL07.003

AMSR-E/AMSR2 Unified L3 Daily 12.5 km Brightness Temperatures, Sea Ice Concentration, Motion & Snow Depth Polar Grids W. N. Meier, T. Markus, and J. C. Comiso https://doi.org/10.5067/RA1MIJOYPK3P

The Finite-volumE Sea ice–Ocean Model (FESOM2) (https://github.com/FESOM/fesom2) S. Danilov, D. Sidorenko, Q. Wang, and T. Jung https://doi.org/10.5194/gmd-10-765-2017

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Short summary
The sea ice bridge usually forms during winter in Nares Strait and prevents ice drifting south. However, this bridge has recently become unstable, and in this study we investigate the role of oceanic heat flux in this decline. Using satellite data, we identify areas where sea ice is relatively thin and further attribute those areas to the heat fluxes from the warm subsurface water masses. We also discuss the potential role of such an impact on ice bridge instability and earlier ice break up.
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