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Description
This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, contains a bed topography/bathymetry map of Antarctica based on mass conservation, streamline diffusion, and other methods. The data set also includes ice thickness, surface elevation, an ice/ocean/land mask, ice thickness estimation errors, and a map showing where each method was utilized.
Version Description
Changes for Version 3 include:
• Added ice thickness measurements from CReSIS 2018, CReSIS 2019, and PASIN
• Updated thinning rates per Smith et al. (2020)
• Added parameter (“dataid”) to more easily identify data source
• Uses IBCSO v2 for ocean bathymetry
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
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Morlighem, M. (2022). MEaSUREs BedMachine Antarctica, Version 3 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/FPSU0V1MWUB6 Date Accessed: 2026-10-24
doi: 10.5067/FPSU0V1MWUB6
Morlighem, M. (2022). MEaSUREs BedMachine Antarctica, Version 3 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/FPSU0V1MWUB6 Date Accessed: 2026-10-24
Morlighem, Mathieu. “MEaSUREs BedMachine Antarctica, Version 3.” NASA National Snow and Ice Data Center Distributed Active Archive Center, 2022, https://doi.org/10.5067/FPSU0V1MWUB6. Date Accessed: 2026-10-24
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