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Article

An Innovative Approach to Accuracy of Co-Seismic Surface Displacement Detection Using Satellite GNSS Technology

1
Department of Geodesy and Mine Surveying, Faculty of Mining and Geology, VŠB Technical University Ostrava, 17. listopadu 15, CZ-70800 Ostrava-Poruba, Czech Republic
2
Geodetic Observatory Pecný, Research Institute of Geodesy, Topography and Cartography, Pecný 244, CZ-25165 Ondřejov, Czech Republic
3
Department of Geomatics, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, CZ-16629 Praha, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editors: Karel Pavelka and Mirko Reguzzoni
Appl. Sci. 2021, 11(6), 2800; https://doi.org/10.3390/app11062800
Received: 18 January 2021 / Revised: 13 March 2021 / Accepted: 16 March 2021 / Published: 21 March 2021
(This article belongs to the Special Issue Analyses in Geomatics: Processing Spatial Data on History and Today)
This paper discusses a new method for determining co-seismic displacement using the Global Navigation Satellite System (GNSS) for the precise detection of positional changes at permanent stations after an earthquake. Positioning by the Precise Point Positioning (PPP) method is undertaken using data from the GNSS satellites and one designated station. A time series is processed by an anharmonic analysis before and after an earthquake and these one-day solutions increase the accuracy of measurements. The co-seismic static displacement can be precisely detected from the analysed time series before and after the earthquake, which can be used for the verification of seismic models. Reliability of the estimation of the size of the co-seismic offset is given by the mean square error (RMSE) of the shift. In this study, RMSE was determined by two approaches, initially from variances within PPP processing, and secondly when no positional change from the GNSS before or after the earthquake was assumed. The variance of the data in the time series gives a more realistic estimate of RMSE. This dual approach can affect seismological interpretation due to the need for the interpreting geophysicists to determine which case of co-seismic displacement is more probable for any given locality. The second approach has been shown to provide a more realistic co-seismic displacement accuracy in this study. View Full-Text
Keywords: permanent GNSS stations; Precise Point Positioning processing; anharmonic analysis; co-seismic displacement permanent GNSS stations; Precise Point Positioning processing; anharmonic analysis; co-seismic displacement
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MDPI and ACS Style

Staňková, H.; Kostelecký, J.; Novosad, M. An Innovative Approach to Accuracy of Co-Seismic Surface Displacement Detection Using Satellite GNSS Technology. Appl. Sci. 2021, 11, 2800. https://doi.org/10.3390/app11062800

AMA Style

Staňková H, Kostelecký J, Novosad M. An Innovative Approach to Accuracy of Co-Seismic Surface Displacement Detection Using Satellite GNSS Technology. Applied Sciences. 2021; 11(6):2800. https://doi.org/10.3390/app11062800

Chicago/Turabian Style

Staňková, Hana, Jakub Kostelecký, and Miroslav Novosad. 2021. "An Innovative Approach to Accuracy of Co-Seismic Surface Displacement Detection Using Satellite GNSS Technology" Applied Sciences 11, no. 6: 2800. https://doi.org/10.3390/app11062800

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