| More


Views: 193 Downloads: 172
C. Pikridas, S. Bitharis, A. Fotiou, D. Rossikopoulos, S. Katsougiannopoulos, K. Spanakaki, I. Karolos
C. Pikridas, S. Bitharis, A. Fotiou, D. Rossikopoulos, S. Katsougiannopoulos, K. Spanakaki, I. Karolos


The Precise Point Positioning (PPP) analysis method adapted for monitoring coordinate displacements from GNSS permanent stations data. One week period data were analyzed covering the Samothrace strong earthquake event of 6.8M. The sample data were processed with Bernese v5.2 PPP engine and with the online web platform of JPL which uses the GIPSY/OASIS v6.3 software package. Also, for validation purposes the output results were compared with those derived by network analysis by means of the GAMIT processing software of MIT. Our experiments proved the ability to measure dynamic seismic related coordinate variations at sub-centimeter level using the PPP algorithm. But this is efficient when strong earthquakes occurs and for stations close to epicenter. 


GNSS data; precise point positioning; earthquake; site displacements

Full Text:



Bitharis, S., Fotiou, A., Pikridas, C, Rossikopoulos, D, Pavlides, S. and Chatzipetros, A., 2016. The

Samothrace earthquake of may 2014 and the displacements estimations using permanent GPS

stations data, Bull. Geol. Soc. Greece, L.

Böhm, J., Werl, B. and Schuh, H., 2006. Troposphere mapping functions for GPS and very long

baseline interferometry from European Centre for Medium-Range Weather Forecasts

operational analysis data, J. Geophys. Res., 111, B02406, doi: 10.1029/2005JB003629.

Dach, R. and Walser, P. 2015.Tutorial of Bernese GNSS software version 5.2. AIUB, Bern,


Fotiou, A., Pikridas, C., Rossikopoulos, D., Spatalas, S., Tsioukas, V. and Katsougiannopoulos, S.,

The Hermes GNSS NtripCaster of AUTh, Bulletin of Geodesy and Geophysics,


Fotiou, A. and Pikridas, C., 2012. GPS and Geodetic Applications, 2nd edition Ziti Publications,


Herring, T.A., King, R.W. and McClusky, S.C., 2010. GAMIT Reference Manual: GPS Analysis at

MIT. Department of Earth Atmospheric and Planetary Science, Massachusetts Institute of

Technology. Cambridge, USA.

Kouba, J. and Héroux, P., 2001. Precise Point Positioning Using IGS orbits and Clocks Products,

GPS Solutions, 5(2), 12-28.

Saastamoinen, J., 1972. Atmospheric correction for the troposphere and stratosphere in radio ranging

of satellites, in The Use of Artificial Satellites for Geodesy. In: Geophys. Monogr. Series,

, Henriksen S.W, Mancini, A. and Chovitz, B.H., eds., 247-251, AGU, Washington D.C.

Sboras, S., Chatzipetros, C., Pavlides, P., Pikridas, C., Fotiou, A. and Bitharis, S., 2015. The May

, 2014 North Aegean Trough earthquake: stress change and displacement patterns, Proc.

of the 6th International INQUA Meeting on Paleoseismology, Active Tectonics and

Archaeoseismology, Pescina, Italy, 04/2015.

Wessel, P., Smith, W.H.F., Scharroo, R., Luis, J. and Wobbe, F., 2013. Generic Mapping Tools:

Improved Version Released, EOS Trans. Am. Geophys. Union, 94(45), 409-410. doi:


Zumberge, J.F., Heflin, M.B., Jefferson, D.C., Watkins, M.M. and Webb, F.H., 1997. Precise point

positioning for the efficient and robust analysis of GPS data from large networks, J. Geophys.

Res., 102(B3), 5005-5017.


  • There are currently no refbacks.

Copyright (c) 2017 C. Pikridas, S. Bitharis, A. Fotiou, D. Rossikopoulos, S. Katsougiannopoulos, K. Spanakaki, I. Karolos

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.