Earth’s Surface Displacements from the GPS Time Series

IOP Conference Series: Materials Science and Engineering (MSE) 2015
Diāna Haritonova, Jānis Balodis, Inese Vārna, Katerīna Runde

The GPS observations of both Latvian permanent GNSS networks – EUPOS®-Riga and LatPos, have been collected for a period of 8 years – from 2007 to 2014. Local surface displacements have been derived from obtained coordinate time series eliminating different impact sources. The Bernese software is used for data processing. The EUREF Permanent Network (EPN) stations in surroundings of Latvia are selected as fiducial stations. The results have shown a positive tendency of vertical displacements in the western and central parts of Latvia – station heights are increasing, and negative velocities are observed in the eastern part. Station vertical velocities are ranging in diapason of 4 mm/year. In the case of horizontal displacements, site velocities are up to 1 mm/year and mostly oriented to the south. The comparison of obtained results with data from the deformation model NKG_RF03vel has been made. Additionally, the purpose of this study is to analyse GPS time series obtained using two different data processing strategies: Precise Point Positioning (PPP) and estimation of station coordinates relatively to the positions of fiducial stations also known as Differential GNSS (DGNSS).

Atslēgas vārdi
GNSS, permanent networks, time series analysis, station displacements
Hipersaite
http://iopscience.iop.org/article/10.1088/1757-899X/96/1/012039?fromSearchPage=true

Haritonova, D., Balodis, J., Janpaule, I., Morozova, K. Earth’s Surface Displacements from the GPS Time Series. IOP Conference Series: Materials Science and Engineering (MSE), 2015, Vol.96, Iss.1, 1.-8.lpp. ISSN 1757-8981. e-ISSN 1757-899X.

Publikācijas valoda
English (en)