Analysis of web-based online services for GPS relative and precise point positioning techniques

Öcalan, Taylan; Erdoğan, Bahattin; Tunalıoğlu, Nursu

doi:10.1590/s1982-21702013000200003

Cited by 31 publications

(13 citation statements)

References 7 publications

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“…The data from survey-mode GNSS stations have been downloaded and processed using TOPCON magnet analysis software, evaluating co-seismic solutions (Table 1) and comparing them with AUSPOS web-based online services for GPS data processing (Ocalan et al, 2013). Its engine is based on Bernese 5.2 software.…”

Section: Implementation and Analysis Of Unict Discrete Gps Stationsmentioning

confidence: 99%

Brief communication: Co-seismic displacement on 26 and 30 October 2016 (Mw = 5.9 and 6.5) – earthquakes in central Italy from the analysis of a local GNSS network

Guidi

Vecchio

Brighenti

et al. 2017

Nat. Hazards Earth Syst. Sci.

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Abstract. On 24 August 2016 a strong earthquake (Mw = 6.0) affected central Italy and an intense seismic sequence started. Field observations, DInSAR (Differential INterferometry Synthetic-Aperture Radar) analyses and preliminary focal mechanisms, as well as the distribution of aftershocks, suggested the reactivation of the northern sector of the Laga fault, the southern part of which was already rebooted during the 2009 L'Aquila sequence, and of the southern segment of the Mt Vettore fault system (MVFS). Based on this preliminary information and following the stress-triggering concept (Stein, 1999; Steacy et al., 2005), we tentatively identified a potential fault zone that is very vulnerable to future seismic events just north of the earlier epicentral area. Accordingly, we planned a local geodetic network consisting of five new GNSS (Global Navigation Satellite System) stations located a few kilometres away from both sides of the MVFS. This network was devoted to working out, at least partially but in some detail, the possible northward propagation of the crustal network ruptures. The building of the stations and a first set of measurements were carried out during a first campaign (30 September and 2 October 2016). On 26 October 2016, immediately north of the epicentral area of the 24 August event, another earthquake (Mw = 5.9) occurred, followed 4 days later (30 October) by the main shock (Mw = 6.5) of the whole 2016 summer–autumn seismic sequence. Our local geodetic network was fully affected by the new events and therefore we performed a second campaign soon after (11–13 November 2016). In this brief note, we provide the results of our geodetic measurements that registered the co-seismic and immediately post-seismic deformation of the two major October shocks, documenting in some detail the surface deformation close to the fault trace. We also compare our results with the available surface deformation field of the broader area, obtained on the basis of the DInSAR technique, and show an overall good fit.

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Section: Implementation and Analysis Of Unict Discrete Gps Stationsmentioning

confidence: 99%

Brief communication: Co-seismic displacement on 26 and 30 October 2016 (Mw = 5.9 and 6.5) – earthquakes in central Italy from the analysis of a local GNSS network

Guidi

Vecchio

Brighenti

et al. 2017

Nat. Hazards Earth Syst. Sci.

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show abstract

“…IGS provides these products with high precision of GPS/GLONASS ephemeris, satellite and station clocks, earth orientation parameters (ERP), IGS stations coordinates and velocities, and atmospheric parameters to users. These services provided by IGS have led to the emergence of new approaches and new evaluation methods in positioning with the accuracy increase in data processing, orbit determination, and acquisition of clock information in satellite geodesy [4].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of GNSS Data with Internet Based Services: The Case of HRUH Station

Ulukavak

2019

Accuracy of GNSS Methods

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Nowadays, as the Internet services are developed, it becomes possible to offer services for many applications in the engineering field online via the Internet. One of these services is the evaluation of online GPS data. The most important feature of Internet-based applications is that these services are free and easy to use. In this study, the data of Global Navigation Satellite Systems (GNSS) of different periods belonging to newly established HRUH permanent GNSS station in Harran University were evaluated through Internetbased services. The evaluation strategy of GNSS data was conducted in 1-, 2-, 6-, 12-, and 24-h campaigns, and the results were compared between different Internet site solution results. When the results obtained are examined, it can be said that the accuracy of the data obtained from these services can be used in many applications requiring precision in centimeter levels and is capable of satisfying the expectancies.

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“…As an example, Ocalan et al [9] conducted an analysis of solutions from several reference stations based on 24-hour observations with 30-second intervals. By contrast, Ghoddousi-Fard and Dare [4] analyzed the accuracy of one-and two-hour static observations by a couple of online services.…”

Section: Introductionmentioning

confidence: 99%

Test of GNSS online service PPP kinematic solutions

Maciuk

Skorupa

2017

geom

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Abstract:GNSSs are widely used in engineering solutions that demand high accuracy. In areas requiring decimeter precision, Internet online post-processing services are a potential tool for developing GNSS observations. These services have been contributed by a number of organizations, providing users simple, unlimited, and (above all) free access. As a result, online services could be an alternative to complex and expensive commercial programs. Authors analyzed free public online GNSS services for post-processing kinematic 5-second observations in PPP mode with accuracy estimation.

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Analysis of web-based online services for GPS relative and precise point positioning techniques

Cited by 31 publications

References 7 publications

Brief communication: Co-seismic displacement on 26 and 30 October 2016 (<i>M</i><sub>w</sub> = 5.9 and 6.5) – earthquakes in central Italy from the analysis of a local GNSS network

Brief communication: Co-seismic displacement on 26 and 30 October 2016 (<i>M</i><sub>w</sub> = 5.9 and 6.5) – earthquakes in central Italy from the analysis of a local GNSS network

Evaluation of GNSS Data with Internet Based Services: The Case of HRUH Station

Test of GNSS online service PPP kinematic solutions

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Analysis of web-based online services for GPS relative and precise point positioning techniques

Cited by 31 publications

References 7 publications

Brief communication: Co-seismic displacement on 26 and 30 October 2016 (&lt;i&gt;M&lt;/i&gt;&lt;sub&gt;w&lt;/sub&gt; = 5.9 and 6.5) – earthquakes in central Italy from the analysis of a local GNSS network

Brief communication: Co-seismic displacement on 26 and 30 October 2016 (&lt;i&gt;M&lt;/i&gt;&lt;sub&gt;w&lt;/sub&gt; = 5.9 and 6.5) – earthquakes in central Italy from the analysis of a local GNSS network

Evaluation of GNSS Data with Internet Based Services: The Case of HRUH Station

Test of GNSS online service PPP kinematic solutions

Contact Info

Product

Resources

About

Brief communication: Co-seismic displacement on 26 and 30 October 2016 (<i>M</i><sub>w</sub> = 5.9 and 6.5) – earthquakes in central Italy from the analysis of a local GNSS network

Brief communication: Co-seismic displacement on 26 and 30 October 2016 (<i>M</i><sub>w</sub> = 5.9 and 6.5) – earthquakes in central Italy from the analysis of a local GNSS network