Articles | Volume 17, issue 2
https://doi.org/10.5194/tc-17-457-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-17-457-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
03 Feb 2023
Research article |
| 03 Feb 2023
| 03 Feb 2023
Evolution of the dynamics, area, and ice production of the Amundsen Sea Polynya, Antarctica, 2016–2021
Grant J. Macdonald
CORRESPONDING AUTHOR
NASA Center for Advanced Measurements in Extreme Environments (CAMEE),
University of Texas at San Antonio, San Antonio, TX 78249, USA
currently at: Department of Geography, University of Victoria, Victoria, BC V8W 2Y2,
Canada
Stephen F. Ackley
NASA Center for Advanced Measurements in Extreme Environments (CAMEE),
University of Texas at San Antonio, San Antonio, TX 78249, USA
Alberto M. Mestas-Nuñez
NASA Center for Advanced Measurements in Extreme Environments (CAMEE),
University of Texas at San Antonio, San Antonio, TX 78249, USA
Adrià Blanco-Cabanillas
Department of Geography, University of Victoria, Victoria, BC V8W 2Y2,
Canada
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Cited
17 citations as recorded by crossref.
- The sustained expansion (2011−2022) and abrupt contraction (2023) of the Ross Sea polynyas X. Ou et al. https://doi.org/10.1016/j.jmarsys.2026.104255
- Holocene Palaeoenvironmental and Palaeoproductivity Changes in the Western Amundsen Sea Embayment of Antarctica M. Kim et al. https://doi.org/10.1029/2023JC019797
- Molecular and optical signatures of labile dissolved organic matter during bloom senescence in the Amundsen Sea Polynya H. Lin et al. https://doi.org/10.1002/lno.70381
- Southern Ocean sea-ice leads: first insights into regional lead patterns, seasonality, and trends, 2003–2023 U. Dubey et al. https://doi.org/10.5194/tc-19-3535-2025
- Spatiotemporal dynamics of polynyas and their relationships with phytoplankton blooms in the Ross Sea, Antarctica Y. Wu et al. https://doi.org/10.1016/j.accre.2025.12.015
- Unsupervised machine learning detection of iceberg populations within sea ice from dual-polarisation SAR imagery B. Evans et al. https://doi.org/10.1016/j.rse.2023.113780
- Combined influence of strong winds and warm deep water on the formation of Amundsen Sea Polynya in winter M. Zhuo et al. https://doi.org/10.1016/j.dsr.2025.104561
- Snapshots of sea surface temperature and salinity in the Dotson-Getz Trough, West Antarctica H. He https://doi.org/10.1080/2150704X.2025.2470882
- Seasonal variability of isotopes and chemistry in a coastal firn core from the Amundsen Sea, West Antarctica J. Shin et al. https://doi.org/10.1080/00288306.2025.2510383
- Inter-Comparison of Satellite-Based Sea Ice Concentration in the Amundsen Sea, Antarctica X. Li & H. He https://doi.org/10.3390/rs15245695
- Multi‐Decadal Record of Sensible‐Heat Polynya Variability From Satellite Optical and Thermal Imagery at Pine Island Glacier, West Antarctica E. Savidge et al. https://doi.org/10.1029/2023GL106178
- Detection of Landfast Ice Polynyas from SAR Imagery Using Deep Learning N. Brubacher et al. https://doi.org/10.1080/07038992.2026.2638600
- A Scattering Study Over the Terra Nova Bay Coastal Polynya Based on C-Band SAR Measurements G. Inserra et al. https://doi.org/10.1109/JOE.2026.3683224
- Radiocarbon research on meltwater and carbon cycling in the polar oceans in a changing climate L. Fang et al. https://doi.org/10.1016/j.marchem.2024.104442
- Coastal Polynyas Enable Transitions Between High and Low West Antarctic Ice Shelf Melt Rates R. Moorman et al. https://doi.org/10.1029/2023GL104724
- Transcriptomic Insights into Archaeal Nitrification in the Amundsen Sea Polynya, Antarctica J. Gwak et al. https://doi.org/10.1007/s12275-023-00090-0
- A dataset of the daily edge of each polynya in the Antarctic Y. Lin et al. https://doi.org/10.1038/s41597-024-03848-2
17 citations as recorded by crossref.
- The sustained expansion (2011−2022) and abrupt contraction (2023) of the Ross Sea polynyas X. Ou et al. https://doi.org/10.1016/j.jmarsys.2026.104255
- Holocene Palaeoenvironmental and Palaeoproductivity Changes in the Western Amundsen Sea Embayment of Antarctica M. Kim et al. https://doi.org/10.1029/2023JC019797
- Molecular and optical signatures of labile dissolved organic matter during bloom senescence in the Amundsen Sea Polynya H. Lin et al. https://doi.org/10.1002/lno.70381
- Southern Ocean sea-ice leads: first insights into regional lead patterns, seasonality, and trends, 2003–2023 U. Dubey et al. https://doi.org/10.5194/tc-19-3535-2025
- Spatiotemporal dynamics of polynyas and their relationships with phytoplankton blooms in the Ross Sea, Antarctica Y. Wu et al. https://doi.org/10.1016/j.accre.2025.12.015
- Unsupervised machine learning detection of iceberg populations within sea ice from dual-polarisation SAR imagery B. Evans et al. https://doi.org/10.1016/j.rse.2023.113780
- Combined influence of strong winds and warm deep water on the formation of Amundsen Sea Polynya in winter M. Zhuo et al. https://doi.org/10.1016/j.dsr.2025.104561
- Snapshots of sea surface temperature and salinity in the Dotson-Getz Trough, West Antarctica H. He https://doi.org/10.1080/2150704X.2025.2470882
- Seasonal variability of isotopes and chemistry in a coastal firn core from the Amundsen Sea, West Antarctica J. Shin et al. https://doi.org/10.1080/00288306.2025.2510383
- Inter-Comparison of Satellite-Based Sea Ice Concentration in the Amundsen Sea, Antarctica X. Li & H. He https://doi.org/10.3390/rs15245695
- Multi‐Decadal Record of Sensible‐Heat Polynya Variability From Satellite Optical and Thermal Imagery at Pine Island Glacier, West Antarctica E. Savidge et al. https://doi.org/10.1029/2023GL106178
- Detection of Landfast Ice Polynyas from SAR Imagery Using Deep Learning N. Brubacher et al. https://doi.org/10.1080/07038992.2026.2638600
- A Scattering Study Over the Terra Nova Bay Coastal Polynya Based on C-Band SAR Measurements G. Inserra et al. https://doi.org/10.1109/JOE.2026.3683224
- Radiocarbon research on meltwater and carbon cycling in the polar oceans in a changing climate L. Fang et al. https://doi.org/10.1016/j.marchem.2024.104442
- Coastal Polynyas Enable Transitions Between High and Low West Antarctic Ice Shelf Melt Rates R. Moorman et al. https://doi.org/10.1029/2023GL104724
- Transcriptomic Insights into Archaeal Nitrification in the Amundsen Sea Polynya, Antarctica J. Gwak et al. https://doi.org/10.1007/s12275-023-00090-0
- A dataset of the daily edge of each polynya in the Antarctic Y. Lin et al. https://doi.org/10.1038/s41597-024-03848-2
Saved (final revised paper)
Latest update: 16 Aug 2026
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.
Polynyas are key sites of sea ice production, biological activity, and carbon sequestration. The...
