Analysis of GPS Data from An Antarctic Ice Stream

Dach, R., Beutler, G. and Gudmundsson, Hilmar (2008) Analysis of GPS Data from An Antarctic Ice Stream. In: Observing our Changing Earth. International Association of Geodesy Symposia, 133 (133). Springer, pp. 569-579. ISBN 9783540854258

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Abstract

Temporal variations in the flow of an active ice stream are analyzed using GPS data collected over a period of two months at six different locations. The diameter of the network is about 60 km. The ice stream moves with a velocity of about one meter per day. The kinematic data are processed using three different strategies: zero-difference network solution, Precise Point Positioning, and double-difference network solution with resolved carrier phase ambiguities. The solutions are compared with regard to the quality of the resulting coordinate time series. Special attention is paid to the positional accuracy as a function of temporal frequency for these different analysis methods as the overall aim of the measurements is to estimate temporal variability in ice flow.

Item Type:	Book Section
Uncontrolled Keywords:	GPS, GNSS, Kinematic positioning, Ambiguity-fixing, Precise point positioning
Subjects:	F800 Physical and Terrestrial Geographical and Environmental Sciences
Department:	Faculties > Engineering and Environment > Geography and Environmental Sciences
Depositing User:	Paul Burns
Date Deposited:	14 Jan 2019 15:56
Last Modified:	11 Oct 2019 14:34
URI:	http://nrl.northumbria.ac.uk/id/eprint/37572

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