Temporal variability of meltwater in front of Dotson Ice Shelf ...

• Main Authors: Zheng, Yixi, Hall, Rob, Heywood, Karen, Queste, Bastien, Sheehan, Peter, Damerell, Gillian
• Format: Conference Object
• Language: unknown
• Published: GFZ German Research Centre for Geosciences 2023
• Subjects: Amundsen Sea; Dotson Ice Shelf; Ice Shelf; Ice Shelves
• Online Access: https://dx.doi.org/10.57757/iugg23-2323; https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018441

<!--!introduction!--> Ice shelves terminating towards the Amundsen Sea are losing mass rapidly, exporting an increasing amount of meltwater into the ocean. Investigation into the fate of the glacial meltwater in the Amundsen Sea is therefore pressing for predicting the future climate response to the ice shelf processes. However, observations near ice shelves often lack continuity in either time or space, limiting our knowledge of the meltwater pathway. In summer 2022, we deployed six ocean gliders in front of the Dotson Ice Shelf (DIS), obtaining two ship CTD transects and 573 glider profiles, yielding more than ten fine-resolution (median horizontal sampling interval: 650 m) glider transects along the DIS within three weeks, allowing us to compare the full picture along DIS over short time scales (median sampling interval: 4.5 days). Glider transects reveal that the meltwater content is higher (about 20 g/kg) in the west (outflow) and lower in the east (inflow), with a meltwater-poor layer centred at ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...