The Cryosphere
The Cryosphere
TC
Articles | Volume 16, issue 2
Articles | Volume 16, issue 2
https://doi.org/10.5194/tc-16-471-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-16-471-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 2
Research article
 | 
09 Feb 2022
Research article |  | 09 Feb 2022

Weddell Sea polynya analysis using SMOS–SMAP apparent sea ice thickness retrieval

Alexander Mchedlishvili, Gunnar Spreen, Christian Melsheimer, and Marcus Huntemann

Data sets

AMSR-E ASI sea ice concentration data, Antarctic Christian Melsheimer and Gunnar Spreen https://doi.org/10.1594/PANGAEA.919778

AMSR2 ASI sea ice concentration data, Antarctic Christian Melsheimer and Gunnar Spreen https://doi.org/10.1594/PANGAEA.898400

ERA5 hourly data on pressure levels from 1979 to present H. Hersbach, B. Bell, P. Berrisford, G. Biavati, A. Horányi, J. Muñoz Sabater, J. Nicolas, C. Peubey, R. Radu, I. Rozum, D. Schepers, A. Simmons, C. Soci, D. Dee, and J.-N. Thépaut https://doi.org/10.24381/cds.bd0915c6

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Short summary
In this paper we show that the activity leading to the open-ocean polynyas near the Maud Rise seamount that have occurred repeatedly from 1974–1976 as well as 2016–2017 does not simply stop for polynya-free years. Using apparent sea ice thickness retrieval, we have identified anomalies where there is thinning of sea ice on a scale that is comparable to that of the polynya events of 2016–2017. These anomalies took place in 2010, 2013, 2014 and 2018.
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