Preprints
https://doi.org/10.5194/egusphere-2024-1593
https://doi.org/10.5194/egusphere-2024-1593
09 Jul 2024
 | 09 Jul 2024
Status: this preprint is open for discussion.

Analysis of sea ice deformation and influencing factors in the western Arctic from 2022 to 2023

Xiaomin Chang, Lei Ji, Bowen Zhu, Guangyu Zuo, Yinke Dou, and Tongliang Yan

Abstract. Sea ice governs the global climate, safeguards ecological equilibrium in polar regions, and influences ocean circulation; however, the factors impacting the spatial characteristics of sea ice deformation have not been comprehensively analyzed. This study examined the effects of wind speed, air temperature (T2m), and sea ice thickness on the variation in sea ice deformation within the western Arctic based on the Lagrangian diffusion theory using buoy data from March 2022 to March 2023. The total sea ice deformation gradually declined in all seasons except for the melting season, especially in the fall and winter. Owing to the ongoing sea ice consolidation, the average total deformation was lower in the fall and winter than in the spring. The total deformation of sea ice diminished as the spatial scale increased. As sea ice is thinner on average in spring, geostrophic winds are the primary factor influencing the spatial characteristics of sea ice deformation. In contrast, the larger average ice thickness in fall and winter reduces the significance of the external force, and T2m/sea ice thickness is the primary factor influencing the spatial characteristics of sea ice deformation. Our multivariate nonlinear regression model effectively predicted the total sea ice deformation. This study provides a scientific basis for climate change research, sea ice change prediction, climate model validation, resource management, and environmental protection.

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Xiaomin Chang, Lei Ji, Bowen Zhu, Guangyu Zuo, Yinke Dou, and Tongliang Yan

Status: open (until 24 Aug 2024)

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Xiaomin Chang, Lei Ji, Bowen Zhu, Guangyu Zuo, Yinke Dou, and Tongliang Yan
Xiaomin Chang, Lei Ji, Bowen Zhu, Guangyu Zuo, Yinke Dou, and Tongliang Yan

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Short summary
The purpose of this study was to use Lagrangian diffusion theory to investigate the effects of wind speed, air temperature (T2m), and sea ice thickness on variations in sea ice deformation in the Western Arctic. This study examines the sequence of changes in sea ice deformation in the western Arctic between March 2022 and March 2023.