Antarctica Supraglacial Lakes Sentinel-1 SAR Images ...

• Main Author: , Artan
• Format: Still Image
• Language: English
• Published: Zenodo 2023
• Subjects: Antarctica; Sentinel-1 SAR; Supraglacial Lakes; Antarctic; The Antarctic; Amery; The Sentinel; Riiser-Larsen; Roi Baudouin; Nivlisen; Antarc*; Ice Shelf; Ice Shelves
• Online Access: https://dx.doi.org/10.5281/zenodo.7814707; https://zenodo.org/record/7814707

This dataset contains synthetic aperture radar (SAR) images of supraglacial lakes on the Antarctic ice shelves, acquired by the Sentinel-1 satellite. Supraglacial lakes are surface meltwater features that can affect the stability and dynamics of ice shelves by hydrofracturing, basal sliding, or surface thinning. Monitoring the spatio-temporal distribution and evolution of these lakes is important for understanding the impact of surface meltwater on ice shelf collapse and sea level rise. The dataset covers four key regions: the Amery, Roi Baudouin, Nivlisen, and Riiser-Larsen ice shelves, which are characterized by extensive surface meltwater features. The images are single-polarized (VV or VH) and have a spatial resolution of 10 m. The images are processed using a modified U-Net algorithm for semantic segmentation of supraglacial lakes, based on deep learning and multiscale feature extraction. The algorithm is trained and validated on Landsat 8 and Sentinel-2 optical imagery, which provide high-resolution ...