MEaSUREs Phase-Based Antarctica Ice Velocity Map, Version 1
Data set id:
NSIDC-0754
DOI: 10.5067/PZ3NJ5RXRH10
This is the most recent version of these data.
Version Summary
Version Summary
Initial release
Overview
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 Antarctic Ice Sheet Velocity and Mapping Data for related data.
Parameter(s):
ICE VELOCITY
Platform(s):
ALOS, ALOS-2, ENVISAT, ERS-1, ERS-2, LANDSAT-8, RADARSAT-1, RADARSAT-2, SENTINEL-1A, SENTINEL-1B, TDX, TSX
Sensor(s):
ASAR, C-SAR, OLI, PALSAR, PALSAR-2, SAR
Data Format(s):
NetCDF
Temporal Coverage:
1 January 1996 to 31 December 2018
Temporal Resolution:
- Not applicable
Spatial Resolution:
- 450 m
- 450 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.
Data Access & Tools
A free NASA Earthdata Login account is required to access these data. Learn More
Documentation
User Guide
General Resources
Help Articles
How to Articles
Many NSIDC DAAC data sets can be accessed using the NSIDC DAAC's Data Access Tool. This tool provides the ability to search and filter data with spatial and temporal constraints using a map-based interface.Users have the option to
Harmony API Quickstart Guide: Customizing NASA NSIDC DAAC data in Earthdata Cloud
All data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) is directly accessible through our HTTPS file system using Wget or curl. This article provides basic command line instructions for accessing data using this method.