MEaSUREs Annual Antarctic Ice Velocity Maps, Version 1
Data set id:
NSIDC-0720
DOI: 10.5067/9T4EPQXTJYW9
This is the most recent version of these data.
Version Summary
Version Summary
Initial release
Overview
This data set, part of the NASA Making Earth System Data Records for Use in Research Environments (MEaSUREs) program, provides annual maps of Antarctic ice velocity. The maps are assembled using SAR data from the Japanese Space Agency's (JAXA) ALOS PALSAR, the European Space Agency's (ESA) ENVISAT ASAR and Copernicus Sentinel-1, the Canadian Space Agency's (CSA) RADARSAT-1, RADARSAT-2, the German Aerospace Agency's (DLR) TerraSAR-X (TSX) and TanDEM –X (TDX), and the U.S. Geological Survey's (USGS) Landsat-8 optical imagery..
See Antarctic Ice Sheet Velocity and Mapping Data for related data.
Parameter(s):
ICE VELOCITY
Platform(s):
ALOS, ENVISAT, LANDSAT-8, RADARSAT-1, RADARSAT-2, SENTINEL-1A, SENTINEL-1B, TDX, TSX
Sensor(s):
ASAR, C-SAR, OLI, PALSAR, SAR
Data Format(s):
netCDF-4
Temporal Coverage:
1 July 2000 to 30 June 2001
1 July 2005 to 30 June 2020
1 July 2005 to 30 June 2020
Temporal Resolution:
- 1 year
Spatial Resolution:
- 1 km
- 1 km
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
Sample Data Image
Image
This color-coded map shows annual ice velocity, in meters per year, across Antarctica. Highest velocities appear in magenta and red, intermediate velocities appear in blue and green, and lowest velocities appear in yellow and peach. The velocities are plotted over a digital elevation model, shown in grayscale. Credit: NASA MEaSUREs AIV Data: JAXA, ESA, CSA, DLR
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.