GPS data analysis and geodetic velocity field investigation in Greece, 2001–2016

In this study, an updated crustal velocity field for the Greece area was estimated using a time series analysis that covers a duration of 16 years (2001–2016) from 227 Global Navigation Satellite System (GNSS) permanent stations. The GPS processing was carried out using GNSS Analysis software at MIT...

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Bibliographic Details
Published in:GPS solutions 2024, Vol.28 (1), p.16, Article 16
Main Authors: Bitharis, Stylianos, Pikridas, Christos, Fotiou, Aristeidis, Rossikopoulos, Dimitrios
Format: Article
Language:English
Subjects:
Atmospheric Sciences
Automotive Engineering
Data analysis
Earth and Environmental Science
Earth Sciences
Earthquakes
Electrical Engineering
Field investigations
Geophysics/Geodesy
Global navigation satellite system
Global positioning systems
GPS
Original Article
Satellite navigation systems
Seismic activity
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Spatial data
Time series
Velocity
Velocity distribution
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Summary:In this study, an updated crustal velocity field for the Greece area was estimated using a time series analysis that covers a duration of 16 years (2001–2016) from 227 Global Navigation Satellite System (GNSS) permanent stations. The GPS processing was carried out using GNSS Analysis software at MIT (GAMIT) and the velocity field expressed with respect to Eurasian plate. For the time series analysis, we applied a robust Median Interannual Difference Adjusted for Skewness trend estimator to mitigate the effects of discontinuities due to geophysical phenomena on the estimation of geodetic velocities and their uncertainties. The main earthquake events that occurred in the GPS time series analysis in the study area are analyzed, providing the co-seismic displacements in the permanent GNSS stations. We also compare our geodetic velocities with five previous publications, where we found consistency at the mm/year level, leading to reliable results for the geodynamic behavior of the Greek area, providing a dense velocity field.
ISSN:1080-5370
1521-1886
DOI:10.1007/s10291-023-01549-8