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Vulnerability of Antarctica’s ice shelves to meltwater-driven fracture Data DOI: https://doi.org/10.15784/601395 Cite as Lai, C. (2020) "Vulnerability of Antarctica’s ice shelves to meltwater-driven fracture" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601395. AMD - DIF Record(s) USAP-1743310_1 Abstract This data set contains the results presented in Lai et al. (2020), including; the 125m-resolution fracture map, the spatial distribution of fracture depths and the required initial flaw size for hydrofracture, which is calculated using linear elastic fracture mechanics (LEFM) according to the ice-shelf stress fields and thickness. The dimensionless stress (Rxx_bar, defined in Lai et al. (2020)) governs how fractures behave. Using a dimensionless stress criteria we have determined which ice-shelf areas are vulnerable to hydrofracture if inundated with melt water (Rxx_bar >Rxx*_bar). Creator(s): Lai, Ching-Yao Date Created: 2020-10-24 Repository: USAP-DC (current) License: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0] Spatial Extent(s) West: -180, East: 180, South: -90, North: -60 Award(s) NSF 1743310 Version: 3 Related Project(s) Satellite observations and modelling of surface meltwater flow and its impact on ice shelves References C. Y. Lai, J. Kingslake, M. Wearing, P.-H. Cameron Chen, P. Gentine, H. Li, J. Spergel, J. M. van Wessem, “Vulnerability of Antarctica’s ice shelves to meltwater-driven fracture," Nature, 584, 574–578 (2020). doi: 10.1038/s41586-020-2627-8 (doi:10.1038/s41586-020-2627-8) Keywords Antarctica Computer Model Fractures Glaciers/ice Sheet Glaciology Meltwater Model Data