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04 November 2014
Article (Scientific journals)
New Estimates of Present-Day Crustal/Land Motions in the British Isles Based on the BIGF Network
Hansen, Dionne; Teferle, Felix Norman; Bingley, Richard M et al.
2012In International Association of Geodesy Symposia, 136, p. 665
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Keywords :
Global Positioning System; Crustal Motions; British Isles
Abstract :
[en] n this study we present results from a recent reprocessing effort that included data from more than 120 continuous Global Positioning System (CGPS) stations in the British Isles for the period from 1997 to 2008. Not only was the CGPS network dramatically densified from previous investigations by the authors, it now also includes, for the first time, stations in Northern Ireland, providing new constraints on glacio-isostatic processes active in the region. In our processing strategy we apply a combination of re-analysed satellite orbit and Earth rotation products together with updated models for absolute satellite and receiver antenna phase centers, and for the computation of atmospheric delays. Our reference frame implementation uses a semi-global network of 37 stations, to align our daily position estimates, using a minimal constraints approach, to ITRF2005. This network uses a combination of current IGS reference frame stations plus additional IGS stations in order to provide similar network geometries throughout the complete time span. The derived horizontal and vertical station velocities are used to investigate present-day crustal/land motions in the British Isles. This first solution provides the basis for our contri- bution to the Working Group on Regional Dense Velocity Fields, 2007 - 2011 of the International Asso- ciation of Geodesy Subcommission 1.3 on Regional Reference Frames.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Hansen, Dionne;  University of Nottingham
Teferle, Felix Norman ;  University of Nottingham
Bingley, Richard M;  University of Nottingham
Williams, Simon D P;  National Oceanography Centre
Language :
Title :
New Estimates of Present-Day Crustal/Land Motions in the British Isles Based on the BIGF Network
Publication date :
Journal title :
International Association of Geodesy Symposia
Publisher :
Springer, Heidelberg, Germany
Volume :
Pages :
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Natural Environment Research Council, UK


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