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ESSD | Articles | Volume 12, issue 2
Earth Syst. Sci. Data, 12, 887–896, 2020
https://doi.org/10.5194/essd-12-887-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Earth Syst. Sci. Data, 12, 887–896, 2020
https://doi.org/10.5194/essd-12-887-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

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.

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Revised manuscript accepted for TC
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Cited articles

Ashmore, D. W., Hubbard, B., Luckman, A., Kulessa, B., Bevan, S., Booth, A., Munneke, P. K., O'Leary, M., Sevestre, H., and Holland, P. R.: Ice and firn heterogeneity within Larsen C Ice Shelf from borehole optical televiewing, J. Geophys. Res.-Earth, 122, 1139–1153, https://doi.org/10.1002/2016jf004047, 2017. 
Booth, A.: Seismic refraction data, Antarctic Peninsula, Larsen C Ice Shelf, Whirlwind Inlet, November-December 2015 [Data set], UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation, https://doi.org/10.5285/5D63777D-B375-4791-918F-9A5527093298, 2019. 
Booth, A., White, J., Pearce, E., Cornford, S., Brisbourne, A., Luckman, A., and Kulessa, B.: Seismic refraction data from two sites on Antarctica's Larsen C Ice Shelf, Nov 2017, following the calving of Iceberg A68 [Data set], UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation, https://doi.org/10.5285/147BAF64-B9AF-4A97-8091-26AEC0D3C0BB, 2019. 
Brisbourne, A., Hudson, T., and Holland, P.: Seismic bathymetry data, Antarctic Peninsula, Larsen C Ice Shelf, 2016 [Data set], UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation, https://doi.org/10.5285/315740B1-A7B9-4CF0-9521-86F046E33E9A, 2019. 
Brisbourne, A. M., Smith, A. M., King, E. C., Nicholls, K. W., Holland, P. R., and Makinson, K.: Seabed topography beneath Larsen C Ice Shelf from seismic soundings, The Cryosphere, 8, 1–13, https://doi.org/10.5194/tc-8-1-2014, 2014. 
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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.
Melting of the Larsen C Ice Shelf in Antarctica may lead to its collapse. To help estimate its...
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