Articles | Volume 17, issue 2
https://doi.org/10.5194/tc-17-457-2023
https://doi.org/10.5194/tc-17-457-2023
Research article
 | 
03 Feb 2023
Research article |  | 03 Feb 2023

Evolution of the dynamics, area, and ice production of the Amundsen Sea Polynya, Antarctica, 2016–2021

Grant J. Macdonald, Stephen F. Ackley, Alberto M. Mestas-Nuñez, and Adrià Blanco-Cabanillas

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Evolution of the Amundsen Sea Polynya, Antarctica, 2016–2021
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Manuscript not accepted for further review
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Cited articles

Alaska Satellite Facility: Copernicus Sentinel Data, Processed by ESA https://search.asf.alaska.edu/, last access: 1 November 2021.  
Armstrong, T.: World meteorological organization: WMO sea-ice nomenclature. Terminology, codes and illustrated glossary, J. Glaciol., 11, 148–149, https://doi.org/10.3189/S0022143000022577, 1972. 
Arrigo, K. R. and van Dijken, G. L.: Phytoplankton dynamics within 37 Antarctic coastal polynya systems, J. Geophys. Res., 108, 3271, https://doi.org/10.1029/2002jc001739, 2003. 
Arrigo, K. R., van Dijken, G. L., and Bushinsky, S.: Primary production in the Southern Ocean, 1997–2006, J. Geophys. Res., 113, C08004, https://doi.org/10.1029/2007JC004551, 2008a. 
Arrigo, K. R., van Dijken, G. L., and Long, M.: Coastal Southern Ocean: A strong anthropogenic CO2 sink, Geophys. Res. Lett., 35, L21602, https://doi.org/10.1029/2008GL035624, 2008b. 
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Short summary
Polynyas are key sites of sea ice production, biological activity, and carbon sequestration. The Amundsen Sea Polynya is of particular interest due to its size and location. By analyzing radar imagery and climate and sea ice data products, we evaluate variations in the dynamics, area, and ice production of the Amundsen Sea Polynya. In particular, we find the local seafloor topography and associated grounded icebergs play an important role in the polynya dynamics, influencing ice production.