Data Set ID:
NSIDC-0756

MEaSUREs BedMachine Antarctica, Version 2

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.

This is the most recent version of these data.

Version Summary:

Changes to this version include:
- additional thickness data to constrain the bed topography under grounded ice
- new multi-beam ocean bathymetry data, as well as gravity inversions, integrated in the Amundsen Sea embayment
- an error in geoid height was corrected for the IBCSO bathymetry

COMPREHENSIVE Level of Service

Data: Data integrity and usability verified; data customization services available for select data

Documentation: Key metadata and comprehensive user guide available

User Support: Assistance with data access and usage; guidance on use of data in tools and data customization services

See All Level of Service Details

Parameter(s):
  • BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY
  • TOPOGRAPHY > TERRAIN ELEVATION > BED ELEVATION
  • GLACIERS/ICE SHEETS > FIRN > FIRN AIR CONTENT
  • CRYOSPHERIC INDICATORS > GLACIAL MEASUREMENTS > GLACIER/ICE SHEET THICKNESS
  • TOPOGRAPHY > TERRAIN ELEVATION
Data Format(s):
  • NetCDF
Spatial Coverage:
N: -53, 
S: -90, 
E: 180, 
W: -180
Platform(s):MODELS
Spatial Resolution:
  • 500 m x 500 m
Sensor(s):NOT APPLICABLE
Temporal Coverage:
  • 1 January 1970 to 1 October 2019
Version(s):V2
Temporal ResolutionNot applicableMetadata XML:View Metadata Record
Data Contributor(s):Morlighem, M.

Geographic Coverage

Other Access Options

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As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Morlighem, M. 2020. MEaSUREs BedMachine Antarctica, Version 2. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/E1QL9HFQ7A8M. [Date Accessed].

Literature Citation

As a condition of using these data, we request that you acknowledge the author(s) of this data set by referencing the following peer-reviewed publication.

  • Morlighem, M., E. Rignot, T. Binder, D. D. Blankenship, R. Drews, G. Eagles, O. Eisen, F. Ferraccioli, R. Forsberg, P. Fretwell, V. Goel, J. S. Greenbaum, H. Gudmundsson, J. Guo, V. Helm, C. Hofstede, I. Howat, A. Humbert, W. Jokat, N. B. Karlsson, W. Lee, K. Matsuoka, R. Millan, J. Mouginot, J. Paden, F. Pattyn, J. L. Roberts, S. Rosier, A. Ruppel, H. Seroussi, E. C. Smith, D. Steinhage, B. Sun, M. R. van den Broeke, T. van Ommen, M. van Wessem, and D. A. Young. 2020. Deep glacial troughs and stabilizing ridges unveiled beneath the margins of the Antarctic ice sheet, Nature Geoscience. 13. 132-137. https://doi.org/10.1038/s41561-019-0510-8

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No technical references available for this data set.

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