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(abstract) Three Dimensional Ice-Flow Velocity Estimation Using Satellite Radar InterferometryAn understanding of the flow dynamics of an ice sheet's outlet glaciers and ice streams requires knowledge of their flow velocity and strain rates (i.e., velocity gradients). Prior to the recent advent of satellite radar interferometry, it was not possible to measure detailed ice-flow velocity over the vast featureless areas that comprise most of the ice sheets. Since the launch of ERS-1, the use of satellite radar interferometry data for making densly sampled ice-flow velocity measurements has been firmly established by several studies. We have combined data from nonparallel orbits with surface slope information to make vector ice-flow measurements for the Ryder Glacier, Greenland. Our results for the Ryder are promising and indicate that repeat-pass interferometric data can be used to make vector measurements of ice velocity.
Document ID
20060036558
Acquisition Source
Jet Propulsion Laboratory
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Joughin, I.
Kwok, R.
Fahnestock, M.
Date Acquired
August 23, 2013
Publication Date
December 15, 1996
Subject Category
Communications And Radar
Distribution Limits
Public
Copyright
Other
Keywords
ice sheets radar interferometry glaciers flow dynamics Ryder Glacier

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