Sea-ice and ice-shelf variability in the Amundsen Sea Embayment, West Antarctica ...

• Main Author: Unkn Unknown
• Format: Article in Journal/Newspaper
• Language: English
• Published: Temple University. Libraries 2023
• Subjects: Geology; FOS Earth and related environmental sciences; Amundsen Sea; Antarc*; Antarctic; Antarctica; Crosson Ice Shelf; Ice Sheet; Ice Shelf; Ice Shelves; Pine Island; Pine Island Glacier; Sea ice; West Antarctica
• Online Access: https://dx.doi.org/10.34944/dspace/8846; https://scholarshare.temple.edu/handle/20.500.12613/8882

Global sea-level rise contributed by Antarctic ice-mass loss could soon outpace all other sources. The ice-mass-loss signal of the Antarctic Ice Sheet is dominated by the Amundsen Sea Embayment (ASE) in West Antarctica. Ice shelves in the ASE influence the ice-mass-loss rates of the Antarctic Ice Sheet through their ability to buttress the grounded ice and modulate ice-flow speed. Ice shelves reduce ice flow and retreat by buttressing grounded ice. Previous studies show that sea ice can buttress ice shelves via mechanical bonding and provide protection from ocean swells. Whereas several studies have examined the trends in West Antarctic sea ice and dynamics of ice shelves in the ASE separately, the interaction between ice shelves and sea ice in the ASE is poorly understood. This study investigated the relationship between sea-ice-area (SIA) anomalies and ice-shelf velocities of three large ASE ice shelves, of Thwaites Eastern Ice Shelf (TEIS), Pine Island Glacier Ice Shelf (PIGIS) and Crosson Ice Shelf ...