MEaSUREs Antarctic Grounding Line from Differential Satellite Radar Interferometry, Version 2
Data set id:
NSIDC-0498
DOI: 10.5067/IKBWW4RYHF1Q
This is the most recent version of these data.
Version Summary
Version Summary
For Version 2, temporal coverage was extended through 2014. In addition, the data format changed to shapefiles.
Overview
This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, provides comprehensive high-resolution mapping of grounding lines in Antarctica from February 1992 through November 2025. The data were derived by applying differential satellite synthetic aperture radar (SAR) interferometry (DInSAR) to SAR data acquired by various space-based platforms.
See Antarctic Ice Sheet Velocity and Mapping Data for related data.
Parameter(s):
GROUNDING LINE
Platform(s):
ALOS
COSMO-SKYMED
ERS-1
ERS-2
ICEYE
PAZ
RADARSAT-1
RADARSAT-2
SENTINEL-1A
TSX
Sensor(s):
C-SAR
PALSAR
PAZ-SAR
SAR
X-SAR
Data Format(s):
Shapefile
GeoPackage
Temporal Coverage:
- 7 February 1992 to 26 November 2025
Temporal Resolution:
- Varies
Spatial Resolution:
- Not Specified
Spatial Reference System(s):
- WGS 84 / Antarctic Polar StereographicEPSG:3031
Spatial Coverage:
- Northern latitude-60Southern latitude-90Eastern longitude180Western longitude-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
Data Access & Tools
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Sample Data Image
Image
Antarctica ice grounding lines (1992-2025) and color-coded glacier speed (from white >50 m/yr to blue >300 m/yr) on a relief map of Antarctica from 2011. Major seas/lands are shown in blue/black. Major drainage boundaries are shown as thin black lines. Image adapted from Rignot et al., 2026. https://doi.org/10.1073/pnas.2524380123
Documentation
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