Articles | Volume 15, issue 9
The Cryosphere, 15, 4165–4178, 2021
https://doi.org/10.5194/tc-15-4165-2021

Special issue: The Weddell Sea and the ocean off Dronning Maud Land: unique...

The Cryosphere, 15, 4165–4178, 2021
https://doi.org/10.5194/tc-15-4165-2021

Research article 31 Aug 2021

Research article | 31 Aug 2021

Recent observations of superimposed ice and snow ice on sea ice in the northwestern Weddell Sea

Stefanie Arndt et al.

Data sets

Physical ice core properties from ice stations during POLARSTERN cruise PS118 Stefanie Arndt, Christian Haas, Ilka Peeken, Erika Allhusen, and Hanno Meyer https://doi.org/10.1594/PANGAEA.928948

Snow thickness measurements at ice stations during POLARSTERN cruise PS118 Stefanie Arndt and Christian Haas https://doi.org/10.1594/PANGAEA.928966

Snow stratigraphy measurements at ice stations during POLARSTERN cruise PS118 Stefanie Arndt https://doi.org/10.1594/PANGAEA.929010

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Short summary
We present here snow and ice core data from the northwestern Weddell Sea in late austral summer 2019, which allow insights into possible reasons for the recent low summer sea ice extent in the Weddell Sea. We suggest that the fraction of superimposed ice and snow ice can be used here as a sensitive indicator. However, snow and ice properties were not exceptional, suggesting that the summer surface energy balance and related seasonal transition of snow properties have changed little in the past.