The great calving in 2017 did not have a significant impact on the Larsen C Ice Shelf in the short term ...

• Main Authors: Liu, Mingliang, Wang, Zemin, Zhang, Baojun, Li, Chuanjin, Song, Xiangyu, An, Jiachun
• Format: Text
• Language: unknown
• Published: Taylor & Francis 2023
• Subjects: Space Science; Medicine; Physiology; FOS Biological sciences; Biotechnology; Environmental Sciences not elsewhere classified; Chemical Sciences not elsewhere classified; Ecology; Astronomical and Space Sciences not elsewhere classified; Sociology; FOS Sociology; Biological Sciences not elsewhere classified; Inorganic Chemistry; FOS Chemical sciences; Ice Shelf; Sea ice; Weddell Sea
• Online Access: https://dx.doi.org/10.6084/m9.figshare.24581384.v1; https://tandf.figshare.com/articles/journal_contribution/The_great_calving_in_2017_did_not_have_a_significant_impact_on_the_Larsen_C_Ice_Shelf_in_the_short_term/24581384/1

The stability of the Larsen C Ice Shelf (LIS) has been widely studied due to its surface lowering, calving, and warming. In this study, we combined multisource remote-sensing data, calculated the long-term series of surface elevation above basal channels and basal melt rate, and analyzed the dynamic changes in the LIS before and after calving in 2017. We found that the basal channels were mainly concentrated in the southern LIS, and the basal melt rate was higher in the south. The Weddell Sea warm water mass entered the bottom of the LIS through the sea trough and promoted basal melting. There was an abnormal basal channel where changes in sea ice concentrations caused by wind-driven currents led to abnormal development. We did not observe significant changes in ice thickness, ice velocity and strain rate in the short term before and after the great calving in 2017. However, the basal melt rate was mainly influenced by the sea ice extent in front of the LIS from 2010 to 2020. Changes in the sea ice extent ...