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ICESat-Derived Grounding Zone for Antarctic Ice Shelves Data DOI: https://doi.org/10.7265/N5CF9N19 Cite as Brunt, K., Fricker, H., O'Neel, S., & Padman, L. (2010) "ICESat-Derived Grounding Zone for Antarctic Ice Shelves" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.7265/N5CF9N19. AMD - DIF Record(s) NSIDC-0469_1 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. Creator(s): Brunt, Kelly; Fricker, Helen; Padman, Laurence; O'Neel, Shad Date Created: 2010-01-01 Repository: USAP-DC (current) - NSIDC (original) License: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0] Spatial Extent(s) West: -180, East: 180, South: -80, North: -60 Temporal Extent(s) Start: 2003-01-01 - End: 2009-12-31 Version: 1 References Fricker, H. A. and L. Padman. 2006. Ice shelf grounding zone structure, from ICESat laser altimetry. Geophysical Research Letters, 33(15),, L15502. (doi:10.1029/2006GL026907) 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), 515–532. (doi:10.1017/S095410200999023X) Brunt, K. M., H. A. Fricker, L. Padman, T. A. Scambos, and S. O’Neel., 2010. Grounding zone of Ross Ice Shelf mapped using ICESat laser, altimetry. Annals of Glaciology, 51(55), 71-79. (doi:10.3189/172756410791392790) Keywords Airborne Altimetry Antarctica Glaciers/ice Sheet Glaciology Grounding Zone