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An ice-motion tracking system at the Alaska SAR facilityAn operational system for extracting ice-motion information from synthetic aperture radar (SAR) imagery is being developed as part of the Alaska SAR Facility. This geophysical processing system (GPS) will derive ice-motion information by automated analysis of image sequences acquired by radars on the European ERS-1, Japanese ERS-1, and Canadian RADARSAT remote sensing satellites. The algorithm consists of a novel combination of feature-based and area-based techniques for the tracking of ice floes that undergo translation and rotation between imaging passes. The system performs automatic selection of the image pairs for input to the matching routines using an ice-motion estimator. It is designed to have a daily throughput of ten image pairs. A description is given of the GPS system, including an overview of the ice-motion-tracking algorithm, the system architecture, and the ice-motion products that will be available for distribution to geophysical data users.
Document ID
Document Type
Reprint (Version printed in journal)
External Source(s)
Kwok, Ronald (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Curlander, John C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Pang, Shirley S. (JPL Pasadena, CA, United States)
Mcconnell, Ross (Vexcel Corp. Boulder, CO, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Publication Information
Publication: IEEE Journal of Oceanic Engineering
Volume: 15
ISSN: 0364-9059
Subject Category
Distribution Limits