Abstract:
This data set includes estimates of the location of the grounding zone of Antarctic ice shelves based on laser altimeter data acquired during the Ice, Cloud, and Land Elevation Satellite (ICESat) mission, October 2003 through October 2009. The estimates are based on ICESat repeat-track analysis, which can be used to detect the region of ice flexure across the grounding line, since each repeated pass is acquired at a different tidal phase. The technique provides estimates for the landward limit of flexure, the point where the ice becomes hydrostatically balanced, and the break-in-slope associated with the flexure. Data files are available via FTP in ASCII text (.txt) format.
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
N: -60.0
S: -80.0
E: 180.0
W: -180.0
Data Set Citation
Dataset Originator/Creator:
Brunt, K. M., H. A. Fricker, L. Padman, and S. O'Neel
Dataset Title:
ICESat-Derived Grounding Zone for Antarctic Ice Shelves
Dataset Release Date:
2010-01-01
Dataset Release Place:
Boulder, Colorado, USA
Dataset Publisher:
National Snow and Ice Data Center (NSIDC)
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City:
Boulder
Province or State:
CO
Postal Code:
80309-0449
Country:
USA
Publications/References
Fricker, H. A. and L. Padman. 2006. Ice shelf grounding zone structure from ICESat laser altimetry. Geophysical Research Letters, 33(15), L15502. Fricker, H. A., R. Coleman, L. Padman, T. A. Scambos, J. Bohlander and K.M. Brunt. 2009. Mapping the grounding zone of the Amery Ice Shelf, East Antarctica using InSAR, MODIS and ICESat. Antarctic Science, 21(5), 515Â532. Brunt, K. M., H. A. Fricker, L. Padman, T. A. Scambos, and S. OÂNeel. 2010. Grounding zone of Ross Ice Shelf mapped using ICESat laser altimetry. Annals of Glaciology, 51(55), 71-79.
