MEaSUREs Grounding Zone of the Antarctic Ice Sheet V001

This data set provides a comprehensive map for the Antarctic Ice Sheet of the short-term zone of migration of the grounding line (i.e., the transition boundary between grounded ice and ice floating in the ocean waters) over a given period due to changes in oceanic tide. This short-term variation in the grounding line is referred to in this data set as the “grounding zone.” The grounding zone is presented as polylines in an ESRI shapefile indicating the upstream and downstream bound of the variation in the grounding line for a given year. The data is based on an automatic delineation of thousands of grounding lines using Sentinel-1 A/B interferometric synthetic aperture radar (InSAR) data with a machine learning algorithm and supplemented by grounding lines from COSMO SkyMed InSAR data.

Data and Resources

Additional Info

Field Value
Maintainer NSIDC Services
Last Updated July 17, 2025, 17:54 (UTC)
Created April 1, 2025, 03:08 (UTC)
accessLevel public
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citation MEaSUREs Grounding Zone of the Antarctic Ice Sheet V001. Version 1. Archived by National Aeronautics and Space Administration, U.S. Government, NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/HGLT8XB480E4.
harvest_object_id d177e695-eb33-4ab1-b0b8-898affa05d0b
harvest_source_id 61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title DNG Legacy Data
identifier C2592873433-NSIDC_ECS
issued 2018-01-01
landingPage https://doi.org/10.5067/HGLT8XB480E4
language {en-US}
metadata_type geospatial
modified 2020-12-31
programCode {026:001}
publisher NASA NSIDC DAAC
resource-type Dataset
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source_schema_version 1.1
spatial -180.0 -90.0 180.0 -60.0
temporal 2018-01-01T00:00:00Z/2020-12-31T23:59:59.999Z
theme {geospatial}