ICESat Antarctic elevation data: Preliminary precision and accuracy assessment

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dc.contributor.authorShuman, Christopher
dc.contributor.authorZwally, H. J.
dc.contributor.authorSchutz, B. E.
dc.contributor.authorBrenner, A. C.
dc.contributor.authorDiMarzio, J. P.
dc.contributor.authorSuchdeo, V. P.
dc.contributor.authorFricker, H. A.
dc.date.accessioned2022-02-16T15:57:16Z
dc.date.available2022-02-16T15:57:16Z
dc.date.issued2006-04-06
dc.description.abstractSince ‘first light’ on February 20th, 2003, NASA's Ice, Cloud, and land Elevation Satellite (ICESat) has derived surface elevations from ∼86°N to 86°S latitude. These unique altimetry data have been acquired in a series of observation periods in repeated track patterns using all three Geoscience Laser Altimeter System (GLAS) lasers. Here, we focus on Antarctic ice sheet elevation data that were obtained in 2003–2004. We present preliminary precision and accuracy assessments of selected elevation data, and discuss factors impacting elevation change detection. We show that for low slope and clear sky conditions, the precision of GLA12 Laser 2a, Release 21 data is ∼2.1 cm and the relative accuracy of ICESat elevations is ±14 cm based on crossover differences.en_US
dc.description.sponsorshipWe thank NASA's Science Mission Directorate, the Cryospheric Sciences Program, and the ICESat Mission for support and data.en_US
dc.description.urihttps://agupubs.onlinelibrary.wiley.com/doi/10.1029/2005GL025227
dc.format.extent4 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m25vc2-ldcp
dc.identifier.citationShuman, C. A., Zwally, H. J., Schutz, B. E., Brenner, A. C., DiMarzio, J. P., Suchdeo, V. P., and Fricker, H. A. (2006), ICESat Antarctic elevation data: Preliminary precision and accuracy assessment, Geophys. Res. Lett., 33, L07501, doi:10.1029/2005GL025227.en_US
dc.identifier.urihttps://doi.org/10.1029/2005GL025227
dc.identifier.urihttp://hdl.handle.net/11603/24279
dc.language.isoen_USen_US
dc.publisherAGUen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleICESat Antarctic elevation data: Preliminary precision and accuracy assessmenten_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0001-9606-767Xen_US

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