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Description

This data set, as part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, combines interferometric phases from multiple satellite interferometric synthetic-aperture radar systems to derive the first comprehensive phase-based map of Antarctic ice velocity. The precision in ice speed and flow direction over 80% of Antarctica is better than prior mappings based on feature and speckle tracking by a factor of 10. Phase-derived velocity mostly covers the years between 2007 and 2018, while tracking-derived velocity (for regions along the coasts) is mostly found in the years from 2013 to 2017. Additional data acquired between 1996 and 2018 were used as needed to maximize coverage.

See <a href="https://nsidc.org/data/measures/aiv">Antarctic Ice Sheet Velocity and Mapping Data</a> for related data.

Product Summary

Platforms
ALOS ,
ALOS-2 ,
ENVISAT ,
ERS-1 ,
ERS-2 ,
LANDSAT-8 ,
RADARSAT-1 ,
RADARSAT-2 ,
Sentinel-1A ,
Sentinel-1B ,
TDX ,
TSX
Instruments
PALSAR ,
PALSAR-2 ,
ASAR ,
SAR ,
OLI ,
C-SAR
Spatial Extent

N: -60 S: -90 E: 180 W: -180

Spatial Resolution
450 Meters x 450 Meters
Geographic Region
ANTARCTICA
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1996-01-01 to 2018-12-31
Concept ID
C3298047930-NSIDC_CPRD
Data State
ACTIVE
Number of Files/Granules
1
Processing Level
3
Science Keywords
Ice Velocity

Citation

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.

Copy Citation

Mouginot, J., Rignot, E., & Scheuchl, B. (2019). MEaSUREs Phase-Based Antarctica Ice Velocity Map, Version 1 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/PZ3NJ5RXRH10 Date Accessed: 2025-12-15

Documents

USER'S GUIDE

GENERAL DOCUMENTATION