Diurnal lake-level cycles on ice shelves driven by meltwater input and ocean tidal tilt

• Published in: Journal of Glaciology
• Main Authors: MacAyeal, Douglas R., Willis, Ian C., Banwell, Alison F., Macdonald, Grant J., Goodsell, Becky
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 2020
• Subjects: Earth-Surface Processes; Weddell Sea; Weddell; McMurdo Ice Shelf; Antarc*; Antarctica; Ice Shelf; Ice Shelves; Journal of Glaciology
• Online Access: http://dx.doi.org/10.1017/jog.2019.98; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143019000984

Abstract Diurnal depth cycles of decimeter scale are observed in a supraglacial lake on the McMurdo Ice Shelf, Antarctica. We evaluate two possible causes: (1) tidal tilt of the ice shelf in response to the underlying ocean tide, and (2) meltwater input variation. We find the latter to be the most l...