Comparison of GPS analysis strategies for high-accuracy vertical land motion

Kierulf, Halfdan Pascal; Plag, Hans‐Peter; Bingley, R. M.; Teferle, Felix Norman; Demir, Coşkun; Cingöz, Ayhan; Yıldız, Hasan; Gárate, Jorge; Dávila, José Martín; Silva, Cristina G.; Zdunek, Ryszard; Jaworski, Leszek; Martínez-Benjamín, J. J.; Orús, R.; Aragón, Angela

doi:10.1016/j.pce.2006.11.003

Cited by 13 publications

(14 citation statements)

References 9 publications

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“…1). The exact details of these analyses can be found in Kierulf et al (2006). Since the results from SRC and UNOTT have been computed, an error was found in the Bernese GPS software, which was described to introduce annual variations (∼1 cm amplitude) in the vertical coordinate component of mid-latitude stations in large regional and global networks (Fridez, 2004).…”

Section: Resultsmentioning

confidence: 99%

“…UNOTT unflt this signal is believed to be mainly a consequence of the Bernese 4.2 software error. However, for SRC this signal is thought to be a mixture of the same software error and the reference frame implied by the CGPS processing strategy used by SRC (Kierulf et al, 2006).…”

Section: Resultsmentioning

confidence: 99%

“…The differing velocity estimates of the third PPP solution computed by UPC are assumed to be due to a combination of 1) the use of a different cut-off elevation angle (Kierulf et al, 2006) and 2) the UPC's shorter height time series.…”

Section: Figure 3 Herementioning

confidence: 99%

“…However, these also vary considerably due to the differences in the height time series, as discussed in Kierulf et al (2006), and are not discussed any further here.…”

Section: Figure 4 Herementioning

confidence: 99%

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A continuous GPS coordinate time series analysis strategy for high-accuracy vertical land movements

Teferle

Williams

Kierulf

et al. 2008

Physics and Chemistry of the Earth, Parts A/B/C

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A CGPS coordinate time series analysis strategy was evaluated to determine highly accurate vertical station velocity estimates with realistic uncertainties. This strategy uses a combination of techniques to 1) obtain the most accurate parameter estimates of the station motion model, 2) infer the stochastic properties of the time series in order to compute more realistic error bounds for all parameter estimates, and 3) improve the understanding of apparent common systematic variations in the CGPS coordinate time series, which are believed to be of geophysical and/or technical origin. The strategy provided a pre-processing of the coordinate time series in which outliers and discontinuities were identified. Subsequent parameterization included a mean value, a constant rate, periodic terms with annual

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Figure 3 Herementioning

confidence: 99%

“…However, these also vary considerably due to the differences in the height time series, as discussed in Kierulf et al (2006), and are not discussed any further here.…”

Section: Figure 4 Herementioning

confidence: 99%

See 2 more Smart Citations

A continuous GPS coordinate time series analysis strategy for high-accuracy vertical land movements

Teferle

Williams

Kierulf

et al. 2008

Physics and Chemistry of the Earth, Parts A/B/C

Self Cite

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“…In recent years, GPS is also widely used in civilian applications, such as dynamic parameters measurement of the lands [17][18], marine geodesy and surveying [19]; earth plate monitoring and earth deformation monitoring [20], engineering measurement, aerospace photography mapping, tracking vehicle location, mapping the terrain deformation, and so on [21][22].…”

Section: Introductionmentioning

confidence: 99%

Investigation on data processing method in multi antenna GPS system designed for landslide

Yuan¹,

Huang²,

Yu³

et al. 2015

Teh. vjesn.

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Original scientific paper The global positioning system (GPS) is a satellite navigation system in the middle distance circular orbit. It can provide accurate positioning, speed testing, and high precision time standard in most parts of the earth's surface. Position can be quickly determined with only 3 satellites, but if want more accurate location, more satellites should be coupled. The conventional GPS monitoring method for deformation is that the GPS receiver is installed in each monitoring point. When there are many monitoring points, cost of the monitoring system will be quite high. In order to solve this problem, multi antenna GPS monitoring system has been proposed. Multiple antennas are connected to a receiver according to an additional GPS signal switch. So the data obtained in the system will be much larger than by the conventional GPS system. How to effectively process the large amount of data is a difficult problem. In this paper, the main content is to study the data processing method for a multi antenna GPS. Data compression method in a multi antenna GPS system with a high sampling rate is investigated. Data effective degree is used in the method to extract useful information. GPS data is coded by multi coding methods. According to the verification, the results show that the method is valid, and it can be used in the GPS data compression. Keywords: code method; data compression; deformation; multi antenna GPS system; side slope Analiza metode obrade podataka GPS sustava s više antena konstruiranog za klizištaIzvorni znanstveni članak Globalni pozicionirajući sustav (GPS) je satelitski navigacijski sustav u kružnoj putanji srednje udaljenosti. Osigurava točno pozicioniranje, ispitivanje brzine i vrlo precizno vrijeme u većini dijelova zemljine površine. Položaj je moguće brzo odrediti sa samo 3 satelita, ali ako želimo točniju lokaciju, potrebno je spojiti više satelita. Uobičajena GPS metoda praćenja deformacija sastoji se u postavljanju GPS prijemnika u svakoj kontrolnoj točki. Kad ima mnogo kontrolnih točki, trošak kontrolnog sustava bit će također prilično visok. Za rješavanje ovog problema predlaže se GPS kontrolni sustav s više antena. Višestruke antene su povezane s prijemnikom preko dodatnog prekidača GPS signala. Tako će podaci prikupljeni u sustav biti mnogo veći nego pomoću uobičajenog GPS sustava. Veliki je problem kako učinkovito obraditi veliku količinu podataka. Bit je ovoga rada proučiti metodu obrade podataka za GPS s više antena. Istražuje se metoda sabijanja podataka u GPS sustavu s više antena za brzo uzimanje

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Vertical GPS ground motion rates in the Euro‐Mediterranean region: New evidence of velocity gradients at different spatial scales along the Nubia‐Eurasia plate boundary

Faccenna²,

et al. 2013

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[1] We use 2.5 to 14 years long position time series from >800 continuous Global Positioning System (GPS) stations to study vertical deformation rates in the Euro-Mediterranean region. We estimate and remove common mode errors in position time series using a principal component analysis, obtaining a significant gain in the signal-to-noise ratio of the displacements data. Following the results of a maximum likelihood estimation analysis, which gives a mean spectral index~À0.7, we adopt a power law + white noise stochastic model in estimating the final vertical rates and find 95% of the velocities within ±2 mm/yr, with uncertainties from filtered time series~40% smaller than from the unfiltered ones. We highlight the presence of statistically significant velocity gradients where the stations density is higher. We find undulations of the vertical velocity field at different spatial scales both in tectonically active regions, like eastern Alps, Apennines, and eastern Mediterranean, and in regions characterized by a low or negligible tectonic activity, like central Iberia and western Alps. A correlation between smooth vertical velocities and topographic features is apparent in many sectors of the study area. Glacial isostatic adjustment and weathering processes do not completely explain the measured rates, and a combination of active tectonics and deep-seated geodynamic processes must be invoked. Excluding areas where localized processes are likely, or where subduction processes may be active, mantle dynamics is the most likely process, but regional mantle modeling is required for a better understanding.

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Comparison of GPS analysis strategies for high-accuracy vertical land motion

Cited by 13 publications

References 9 publications

A continuous GPS coordinate time series analysis strategy for high-accuracy vertical land movements

A continuous GPS coordinate time series analysis strategy for high-accuracy vertical land movements

Investigation on data processing method in multi antenna GPS system designed for landslide

Vertical GPS ground motion rates in the Euro‐Mediterranean region: New evidence of velocity gradients at different spatial scales along the Nubia‐Eurasia plate boundary

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