Lecture High-resolution ground-based GPS measurements show inter-campaign bias in ICESat elevation data. Siegfried, M.R.; Hawley, R.L.; Burkhart, J.F. Publication details Presented at 2010 AGU Fall Meeting, San Francisco, 13-17 December 2010 (Abstract C43F-06) Link: http://adsabs.harvard.edu/abs/2010AGUFM.C43F..06S