Vertical crustal motion observed in the BIFROST project

peer reviewed This paper reports from investigations on the robustness of estimated rates of intraplate motion from the continuous GPS project BIFROST (Baseline Inferences from Fennoscandian Rebound Observations, Sealevel and Tectonics). We study loading effects due to ocean, atmosphere and hydrolog...

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Bibliographic Details
Published in:Journal of Geodynamics
Main Authors: Scherneck, Hans-Georg, Johansson, Jan M., Koivula, Hannu, van Dam, Tonie, Davis, James L.
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier Science Ltd. 2003
Subjects:
GIA
GPS
Online Access:https://orbilu.uni.lu/handle/10993/832
https://doi.org/10.1016/S0264-3707(03)00005-X
Description
Summary:peer reviewed This paper reports from investigations on the robustness of estimated rates of intraplate motion from the continuous GPS project BIFROST (Baseline Inferences from Fennoscandian Rebound Observations, Sealevel and Tectonics). We study loading effects due to ocean, atmosphere and hydrology and their impact on estimated rate parameters. We regularly find the admittance of a modelled perturbation at less than fifty percent of the full effect. We think that the finding relates to a difficult noise situation at all periods, and that a satisfying model for the dominating noise source has not been found yet. An additional reason for low admittance is found in the mapping process of the no-fiducial network solution into a conventional reference frame.