Sea ice strength development from freezing to melting in the Antarctic marginal ice zone

• Published in: Proceedings of the YIC 2021 - VI ECCOMAS Young Investigators Conference
• Main Authors: Paul, Felix, Mielke, T., Audh, R., Lupascu, D.C.
• Other Authors: National Research Foundation, South Africa
• Format: Book Part
• Language: English
• Published: Editorial Universitat Politècnica de València 2022
• Subjects: Sea ice strength; Compressive strength; Antarctic marginal ice zone; Antarctic; Pancake; The Antarctic; Antarc*; Sea ice; South African National Antarctic Programme
• Online Access: http://hdl.handle.net/10251/186730; https://doi.org/10.4995/YIC2021.2021.12249

[EN] Sea ice growth in the Marginal Ice Zone of the Antarctic is one of the largest annual changes on earth with a huge impact on the global climate and ecology system. The principles of sea ice growth and melting in the MIZ of the Antarctic is yet not as well researched as its polar counterpart in the north.For this study, pancake ice, consolidated ice and floe ice were analyzed with a compression test in July, October and November 2019 in the marginal ice zone of the Antarctic. Newly formed pancake ice in July showed the highest compressive strength in the bottom layer (3 MPa), whereas consolidated ice was strongest at the top (5 MPa). Consolidated ice in October and November had the highest compressive strength in a middle layer with up to 13.5 MPa, the maximum strength at the top was 3 MPa. Floe ice, consisting of destroyed pack ice, did not show a clear strength development over sea ice depth. The SCALE cruises are funded by the South African National Research Foundation (NRF) through the South African National Antarctic Programme (SANAP), with contributions from the Department of Science and Innovation and the Department of Environmental Affairs. We are very grateful to the teams that have contributed to the success of the SCALE cruise in particular under the guidance of Marcello Vichi and J¨org Schröder. Paul, F.; Mielke, T.; Audh, R.; Lupascu, D. (2022). Sea ice strength development from freezing to melting in the Antarctic marginal ice zone. En Proceedings of the YIC 2021 - VI ECCOMAS Young Investigators Conference. Editorial Universitat Politècnica de València. 375-385. https://doi.org/10.4995/YIC2021.2021.12249 OCS 375 385