Articles | Volume 12, issue 2
Earth Syst. Sci. Data, 12, 887–896, 2020
https://doi.org/10.5194/essd-12-887-2020
Earth Syst. Sci. Data, 12, 887–896, 2020
https://doi.org/10.5194/essd-12-887-2020

Data description paper 20 Apr 2020

Data description paper | 20 Apr 2020

An updated seabed bathymetry beneath Larsen C Ice Shelf, Antarctic Peninsula

Alex Brisbourne et al.

Data sets

Seismic bathymetry data, Antarctic Peninsula, Larsen C Ice Shelf, 2016 [Data set] A. Brisbourne, T. Hudson, and P. Holland https://doi.org/10.5285/315740B1-A7B9-4CF0-9521-86F046E33E9A

Seismic refraction data, Antarctic Peninsula, Larsen C Ice Shelf, Cabinet Inlet, November-December 2014 [Data set] B. Kulessa, and S. Bevan https://doi.org/10.5285/FFF8AFEE-4978-495E-9210-120872983A8D

Seismic refraction data, Antarctic Peninsula, Larsen C Ice Shelf, Whirlwind Inlet, November-December 2015 [Data set] A. Booth https://doi.org/10.5285/5D63777D-B375-4791-918F-9A5527093298

Seismic refraction data from two sites on Antarctica's Larsen C Ice Shelf, Nov 2017, following the calving of Iceberg A68 [Data set] A. Booth, J. White, E. Pearce, S. Cornford, A. Brisbourne, A. Luckman, and B. Kulessa https://doi.org/10.5285/147BAF64-B9AF-4A97-8091-26AEC0D3C0BB

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Short summary
Melting of the Larsen C Ice Shelf in Antarctica may lead to its collapse. To help estimate its lifespan we need to understand how the ocean can circulate beneath. This requires knowledge of the geometry of the sub-shelf cavity. New and existing measurements of seabed depth are integrated to produce a map of the ocean cavity beneath the ice shelf. The observed deep seabed may provide a pathway for circulation of warm ocean water but at the same time reduce rapid tidal melt at a critical location.