Testing the Number of IGS Stations Required for Accurate Alignment of the Thai GPS Network and ITRF2005 Using the Gipsy Software

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ABSTRACT

Since its introduction in 1990s, the GPS Precise Point Positioning (PPP) technique has been widely used for many high precision positioning applications such as the study of tectonic plate motion, establishment of national and regional reference frames and so on. Among the GPS PPP software packages, the GIPSY-OASIS II software package is the one of the most popular software package used by many research institutes worldwide. The processing of GPS data with the GIPSY-OASIS II software requires three main steps. The first step is to compute a daily GPS solution for each station and the second step is to combine daily GPS solutions into a multi-day averaged solution. The final step is to transform these multi-day averaged solutions into the International Terrestrial Reference Frame (ITRF) coordinate solution and this step generally requires the use of available International GNSS service (IGS) stations to compute the required transformation parameters. In order to obtain high precision ITRF coordinate solutions, an investigation on a selection of IGS stations used for aligning the multi-day averaged solution into ITRF is therefore needed. This study aims to investigate the effect of number of IGS stations used for aligning the multi-day averaged solutions into the final ITRF coordinate solution in Thai region. Data from two different GPS campaigns (with epochs before and after the 2004 Sumatra- Andaman earthquake) measured by the Royal Thai Survey Department (RTSD) were used in this investigation. By varying the number of IGS station used in the alignment step, results indicate that the use of at least 16 IGS stations in the alignment process can produce reliable and accurate ITRF solutions especially those impacted by the large earthquake.

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  • Altamimi Z. Collilieux X. Legrand J. Garayt B. and Boucher C. (2007) ITRF2005: A new release of the International Terrestrial Reference Frame based on time series of station positions and Earth Orientation Parameters Journal of Geophysical Research 112 B09401 doi:10.1029/2007JB004949.

  • Cochran W.G. (1977) Sampling Techniques 3rd edition John Wiley & Sons New York 428 pp.

  • Defraigne P. and Baire Q. (2011) Combining GPS and GLONASS for time and frequency transfer Advances in Space Research Vol. 47 Issue 2 pp.265-275 2011.

  • Gregorius T. (1996) GIPSY-OASIS II: How it works… Department of Geomatics University of Newcastle upon Tyne 109.

  • Guyennon N. Cerretto G. Tavella P. and Lahaye F. (2009) Further characterization of the time transfer capabilities of Precise Point Positioning (PPP): the Sliding Batch Procedure IEEE Trans Ultrason Ferroelectr Freq Control 56(8) pp. 1634-1641.

  • Lejba P. Nawrocki J. Lemański D. and Nogaś P. (2011) AOS studies on use of PPP technique for time transfer Proceedings of the 43rd Annual Precise Time and Time Interval (PTTI) Systems and Applications Meeting Paper 46 pp.407-419 14-17 November Long Beach USA.

  • Munekane H. and Fukuzaki Y. (2006) A plate motion model around Japan Bulletin of GSI 53 pp. 35-41.

  • Neil A.E. (1996) Global mapping functions for the atmospheric delay at radio wavelengths Journal of Geophysical Research 101 pp. 3227-3246.

  • Overgaauw B. Ambrosius B.A.C. and Wakker K.F. (1994) Analysis of the EUREF-89GPSdata from the SLR/VLBI sites Bulletin Geodesique 68 pp. 19-28.

  • Panumastrakul E. Simons W.J.F. and Satirapod C. (2012) Modeling Post-seismic Displacements in Thai Geodetic Network due to the Sumatra-Andaman and Nias Earthquakes Using GPS Observations Survey Review 44(324) pp. 72-77.

  • Satirapod C. Laoniyomthai N. and Chabangborn A. (2007a) Crustal Movement of Thailand Disc Due to 28 March 2005 Earthquake as Observed from GPS Measurements International Journal of Geoinformatics 3(1) pp. 29-33 .

  • Satirapod C. Simons W. J. F. Promthong C. Yousamran S. and Trisirisatayawong I. (2007b) Deformation of Thailand as detected by GPS measurements due to the December 26th 2004 mega-thrust Earthquake Survey Review 39(304) pp. 109-115.

  • Satirapod C. Simons W. J. F. and Promthong C. (2008) Monitoring deformation of Thai Geodetic Network due to the 2004 Sumatra-Andaman and 2005 Nias Earthquakes by GPS Journal of Surveying Engineering (ASCE) 134(3) pp. 83-88.

  • Satirapod C. Bamrungwong S. Vigny C. and Lee H.K. (2010) Change of strain rate in Thailand after the 26 December 2004 and 28 March 2005 earthquakes using GPS measurements KSCE Journal of Civil Engineering 14(2) pp. 215-220.

  • Satirapod C. Simons W. J. F. Panumastrakul E. and Trisirisatayawong I. (2011) Updating Thai Reference Frame to ITRF2005 Using GPS: Diversion between ITRF2000 and 2005 in Southeast Asia Survey Review 43(319) pp. 45-53.

  • Satirapod C. Trisirisatayawong T. Fleitout L. Garaud J.D. and Simons W.J.F. (2012) Vertical Motions in Thailand after the 2004 Sumatra-Andaman Earthquake from GPS Observations and Its Geophysical Modelling Advances in Space Research 2012 doi:10.1016/j.asr.2012.04.030.

  • Scherneck H.G. (1991) A parametrized solid Earth tide mode and ocean loading effects for global geodetic base-line measurements Geophysical Journal International 106 (3) pp. 677-694.

  • Simons W. J. F. Ambrosius B. A. C. Noomen R. Angermann D. Wilson P. Becker M. Reinhart E. Walpersdorf A. and Vigny C. (1999) Observing Plate Motions in S.E. Asia: Geodetic Results of the GEODYSSEA Project Geophysical Research Letters 26(14) pp.2081-2084.

  • Simons W.J.F Socquet A. Vigny C. Ambrosius B.A.C. Abu S. H. Promthong C Subarya C. Sarsito D.A. Matheussen S. Morgan P. and Spakman W. (2007) A Decade of GPS in Southeast Asia: Resolving Sundaland motion and boundaries Journal of Geophysical Research 112 doi:10.1029/2005JB003868.

  • Simons W.J.F. Panumastrakul E. and Yousamran S. (2009) Processing the RTSD November 2008 GPS Campaign DEOS official report to RTSD Delft The Netherlands 18 pp.

  • Vigny C. Simons W. J. F. Abu S. Ronnachai B. Satirapod C. Choosakul M. Subarya C. Omar K. Abidin H.Z. Socquet A. and Ambrosius B.A.C. (2005) Insight into the 2004 Sumatra-Andaman earthquake from GPS measurements in southeast Asia Nature 436 pp. 201-206.

  • Webb F. and Zumberge J. (1997) An introduction to GIPSY/OASIS-II precision software for the analysis of data from the Global Positioning System Jet Propulsion Laboratory Pasadena CA JPL D-11088 July.

  • Yamane T. (1973) Statistics: an Introductory Analysis 3rd edition Harper and Row New York 1130pp.

  • Zumberge J. Heflin M.B. Jefferson D.C. Watkins M. and Webb F.H. (1997) Precise Point Positioning for the efficient and robust analysis of GPS data from large networks Journal of Geophysical Research 102(B3) pp. 5005-5017.

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