Ice velocity of Antarctic Ice Sheet
Internal access for ZMAW users:
Data access via file system: /data/icdc/ice_and_snow/antarctic_glac/
or email to: email@example.com
No access limitations:
Obtain data directly from NSIDC
The ice velocity of the Antarctic ice sheet's outlet glaciers and the areas feeding these glaciers are an important parameter for the quantification of the mass balance of the ice sheet and ice shelves, and for its future development. The break-up or disintegration of such an entire ice shelf like the Larsen Ice Shelf, or the Wilkens Ice Shelf can substantially impact the ice velocity of the glaciers that (used to) feed these ice shelves. A correct quantification of the ice velocity is therefore important also to gain a better knowledge about the future stability of the glacier itself and of the ice sheet areas upstream feeding this glacier.
Coverage, spatial and temporal resolution
Period and temporal resolution:
Coverage and spatial resolution:
The dataset contains an uncertainty estimation. The precision of ice flow mapping varies with the sensor, the geographic location, the technique of interferometric analysis, the time period of analysis, the repeat cycle, and the amount of data stacking. The total error is the square root of the sum of the independent errors squared and ranges between about 1 m/year for ERS1/2 and around 10 m/year for ALOS Palsar. These estimates, however, should be used more as an indication of relative quality rather than absolute error.
Dr. Eric Rignot
NSIDC User Services
Please cite usage of this data as follows:
Rignot, E., J. Mouginot, and B. Scheuchl. 2011. MEaSUREs InSAR-Based Antarctica Velocity Map. Boulder, Colorado USA:
Rignot, E., J. Mouginot, and B. Scheuchl. 2011. Ice Flow of the Antarctic Ice Sheet, Science, Vol. 333(6048): 1427-1430. doi 10.1126/science.1208336.