Spatiotemporal analysis of sea ice in the Weddell Sea of Antarctic based on GTWR.

ABSTRACT: This study investigates the spatiotemporal dynamics of Antarctic sea ice concentration (SIC) and its interactions with environmental factors from 2011 to 2023, focusing on the Weddell Sea. SIC products derived from MODIS data were assessed and compared with six widely used datasets, including AMSR2/NT2 and MWRI/NT2. Among these, MWRI/NT2 exhibited the highest consistency with MODIS-derived SIC, achieving a correlation coefficient of 0.94, the lowest bias (0.23%), and the smallest mean absolute deviation (MAD) and root mean square deviation (RMSD), making it the preferred dataset for further analysis. Seasonal trends reveal that SIC experienced the most significant decline during autumn (-10.7 ± 2.3 × 10³ km² yr⁻¹) and the smallest reduction in winter (-1.3 ± 0.5 × 10³ km² yr⁻¹). Correlatio

SUBMITTER: Ding YR 

PROVIDER: S-EPMC11836417 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature