CGPS time-series and trajectories of crustal motion along the West Hellenic Arc

Hollenstein, Ch; Geiger, A; Kahle, H-G; Veis, G

dc.contributor.author	Hollenstein, Ch	en
dc.contributor.author	Geiger, A	en
dc.contributor.author	Kahle, H-G	en
dc.contributor.author	Veis, G	en
dc.date.accessioned	2014-03-01T01:23:41Z
dc.date.available	2014-03-01T01:23:41Z
dc.date.issued	2006	en
dc.identifier.issn	0956540X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17096
dc.subject	Fault motion	en
dc.subject	Geodynamics	en
dc.subject	GPS	en
dc.subject	Greece	en
dc.subject	Seismotectonics	en
dc.subject	West Hellenic Arc	en
dc.subject.other	crustal deformation	en
dc.subject.other	crustal movement	en
dc.subject.other	fault zone	en
dc.subject.other	geodynamics	en
dc.subject.other	GPS	en
dc.subject.other	island arc	en
dc.subject.other	seismotectonics	en
dc.subject.other	tectonic structure	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Greece	en
dc.subject.other	Southern Europe	en
dc.subject.other	Western Greece	en
dc.title	CGPS time-series and trajectories of crustal motion along the West Hellenic Arc	en
heal.type	journalArticle	en
heal.identifier.primary	10.1111/j.1365-246X.2005.02804.x	en
heal.identifier.secondary	http://dx.doi.org/10.1111/j.1365-246X.2005.02804.x	en
heal.publicationDate	2006	en
heal.abstract	Western Greece is one of the seismotectonically most active regions in Europe. The main tectonic structures are the West Hellenic Arc (WHA) and the Kephalonia Fault Zone. In order to monitor and understand the crustal movements in space and time, a continuous GPS network was installed. In this paper we present results of 6 yr (1995-2001) of measurements. To ensure a consistent reference frame, 54 mainly European IGS and EUREF sites were included in the processing. A selected subset was used to estimate an Euler pole for the rotation of Eurasia. In order to obtain coordinate time-series of high precision that are representative for crustal deformation, special emphasis was given to the elimination of non-tectonic effects. Four steps of improvement were pursued, including a reprocessing after exclusion of poor data, the removal of remaining outliers, the correction of unknown phase centre offsets after antenna changes and weighted common-mode filtering. With this procedure, non-tectonic irregularities were reduced significantly, and the precision was improved by an average of 40 per cent. The final time-series are used as a base for depicting trajectories of crustal motion, interpreting the temporal behaviour of the sites and for estimating velocities. For the first time, height changes in the WHA area were detected and quantified by GPS. Sites that are located near the epicentres of the 1997 Strofades (Mw = 6.6) and the 1999 Athens (Mw = 6.0) earthquakes are particularly considered. © 2005 The Authors Journal compilation © 2005 RAS.	en
heal.journalName	Geophysical Journal International	en
dc.identifier.doi	10.1111/j.1365-246X.2005.02804.x	en
dc.identifier.volume	164	en
dc.identifier.issue	1	en
dc.identifier.spage	182	en
dc.identifier.epage	191	en