C. Heuzé, G. Garric, and T. Lavergne (2019) The Weddell Polynya [in CMEMS Ocean State Report issue 3, Chapter 4], Journal of Operational Oceanography, doi:10.1080/1755876X.2019.1633075.
In the same vein as paper , we here report in near-real-time on the surprise opening of the Weddell Polynya, an unexplained large hole in the winter Antarctic sea ice cover. We find
1) That the polynya information was correctly assimilated by the reanalysis product GREP.
2) That in GREP as in observations, the polynya coincided with a deepening of the mixed layer, although this deepening ceased as early as November even though the polynya kept growing.