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Description

This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program, provides the first comprehensive, high-resolution, digital mosaics of ice motion in Antarctica assembled from multiple satellite interferometric, synthetic-aperture radar systems. Data were largely acquired during the International Polar Years 2007 to 2009, as well as between 2013 and 2016. Additional data acquired between 1996 and 2016 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.

Version Description

Version 2 includes data acquired from 2011-2016 from RADARSAT-2, Sentinel-1, TerraSAR-X (TSX), and TanDEM-X (TDX). Landsat-8 optical imagery also was integrated into the data to improve coverage. The mosaicking method was updated to make best use of the large number of scenes used for the mosaic. In addition, several new parameters are included for assessing the quality of the data including: the standard deviation of vx and vy for each pixel and count of scenes used for each pixel.

In version 2, coverage increased from 95.1% to 99.6% and a reduction in error was achieved due to the utilization of more data.

Product Summary

Platforms
ALOS ,
ENVISAT ,
ERS-1 ,
ERS-2 ,
LANDSAT-8 ,
RADARSAT-1 ,
RADARSAT-2 ,
Sentinel-1A ,
TDX ,
TSX
Instruments
PALSAR ,
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 ,
POLAR
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1996-01-01 to 2016-12-31
Concept ID
C3291177469-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
1
Processing Level
3
Published
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

Rignot, E., Mouginot, J., & Scheuchl, B. (2017). MEaSUREs InSAR-Based Antarctica Ice Velocity Map, Version 2 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/D7GK8F5J8M8R Date Accessed: 2025-12-25

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