Search results for "Coordinate time"

showing 2 items of 2 documents

Earth's Surface Displacements from the GPS Time Series

2015

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 the obtained coordinate time series eliminating different impact sources. The Bernese software is used for data processing. The EUREF Permanent Network (EPN) stations in the surroundings of Latvia are selected as fiducial stations. The results have shown a positive tendency of vertical displacements in the western part of Latvia - station heights are increasing, and negative velocities are observed in the central and eastern parts. Station vertical velocities are ranging in diapason of 4 mm/…

Data processingGeographybusiness.industryGNSS applicationsGlobal Positioning SystemRangingGeodesyCoordinate timeFiducial markerbusinessPrecise Point PositioningEUREF Permanent NetworkIOP Conference Series: Materials Science and Engineering
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Investigating effects in GNSS station coordinate time series

2014

The vertical and horizontal displacements of the Earth can be measured to a high degree of precision using GNSS. Time series of Latvian GNSS station positions of both the EUPOS®-Riga and LatPos networks have been developed at the Institute of Geodesy and Geoinformation of the University of Latvia (LU GGI). In this study the main focus is made on the noise analysis of the obtained time series and site displacement identification. The results of time series have been analysed and distinctive behaviour of EUPOS®-Riga and LatPos station coordinate changes have been identified. The possible dependences of GNSS station coordinate distribution on EPN station problems, seismic activity of some area…

Geographic information systemHorizontal and verticalSeries (mathematics)business.industryGNSS permanent networks time series analysis station displacementsCoordinate timeGeodesyDisplacement (vector)NoiseGeographyGNSS applicationsTime seriesbusinessRemote sensingProceedings of the International Conference „Innovative Materials, Structures and Technologies”
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