MEaSUREs Grounding Zone of the Antarctic Ice Sheet, Version 1
Data set id:
NSIDC-0778
DOI: 10.5067/HGLT8XB480E4
This is the most recent version of these data.
Version Summary
Version Summary
Initial release
Overview
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.
Parameter(s):
GROUNDING LINE
Platform(s):
COSMO-SKYMED, Sentinel-1A, Sentinel-1B
Sensor(s):
C-SAR, SAR
Data Format(s):
Not Specified
Temporal Coverage:
1 January 2018 to 31 December 2020
Temporal Resolution:
- 1 year
Spatial Resolution:
- 100 m
- 100 m
Spatial Reference System(s):
WGS 84 / Antarctic Polar Stereographic
EPSG:3031
Spatial Coverage:
N:
-60
S:
-90
E:
180
W:
-180
Blue outlined yellow areas on the map below indicate the spatial coverage for this data set.
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