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Proceedings Paper

3D velocity field time series using synthetic aperture radar: application to tidal-timescale ice-flow variability in Rutford Ice Stream, West Antarctica
Author(s): Pietro Milillo; Brent Minchew; Piyush Agram; Bryan Riel; Mark Simons
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Paper Abstract

We present a general method for retrieving time-series of three component surface velocity field vector given a set of continuous synthetic aperture radar (SAR) acquisitions collected from multiple geometries. Our algorithm extends the single-line-of-sight mathematical framework developed for time-series analysis using interferometric SAR (InSAR) to three spatial dimensions. The inversion is driven by a design matrix corresponding to a dictionary of displacement functions parameterized in time. The resulting model minimizes a cost function using a non-regularized least-squares method. We applied our method to Rutford ice stream (RIS), West Antarctica, using a set of 101 multi-track multi-angle COSMO-SkyMed displacement maps generating azimuth and range pixel offsets.

Paper Details

Date Published: 28 October 2016
PDF: 7 pages
Proc. SPIE 10003, SAR Image Analysis, Modeling, and Techniques XVI, 1000309 (28 October 2016); doi: 10.1117/12.2241617
Show Author Affiliations
Pietro Milillo, Jet Propulsion Lab. (United States)
Univ. of Basilicata (Italy)
Brent Minchew, British Antarctic Survey (United Kingdom)
Piyush Agram, Jet Propulsion Lab. (United States)
Bryan Riel, California Institute of Technology (United States)
Mark Simons, California Institute of Technology (United States)

Published in SPIE Proceedings Vol. 10003:
SAR Image Analysis, Modeling, and Techniques XVI
Claudia Notarnicola; Simonetta Paloscia; Nazzareno Pierdicca; Edward Mitchard, Editor(s)

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