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Adjustment and transformation strategies of ItalPoS Permanent GNSS Network
Author(s)
Language
English
Obiettivo Specifico
1.9. Rete GPS nazionale
Status
Published
JCR Journal
N/A or not JCR
Peer review journal
Yes
Title of the book
Issue/vol(year)
2-3/69 (2010)
ISSN
0006-6710
Publisher
Istituto Geografico Militare
Pages (printed)
300-317
Issued date
December 1, 2010
Abstract
A private network of 133 GNSS (Global Navigation Satellite Systems) permanent sites, named ItalPoS (Italian Positioning Service) and covering quite uniformly the entire Italian territory, was established since April 2006 by the Italian Division of Leica Geosystems S.p.A. This network involves also several GPS stations of the INGV (Italian National Institute of Geophysics and Volcanology) RING (Real-time Integrated National Gps) network and GPS stations from other public and private administrations. The purpose of ItalPoS network is mainly the GNSS data distribution in terms of real time corrections and RINEX (Receiver INdependent EXchange) files for the post-processing.
In order to compute and distribute to private and scientific users a set of adjusted coordinates of the ItalPoS network in the IGS05 and ETRF89-ETRF2000 (European Terrestrial Reference Frame) reference frames, a dataset of RINEX of 133 GPS permanent sites was created and processed, using the distributed sessions approach, by means of Gamit/Globk 10.3 GPS data processor, using also some SOPAC (Scripps Orbit and Permanent Array Center) and EUREF (Reference Frame Sub Commission for Europe) solutions to improve the reference frame definition and the internal constraint. All the strategies adopted to estimate coordinates and velocities of the ItalPoS Network in IGS05 will be described together with the investigated approaches to provide coordinates in ETRF89-ETRF2000 reference frames: in this case both Helmert and Boucher-Altamimi transformations were taken into account, the whole Italian territory was divided into three parts in order to optimize transformation residuals. Particular attention was paid to transition areas.
In order to compute and distribute to private and scientific users a set of adjusted coordinates of the ItalPoS network in the IGS05 and ETRF89-ETRF2000 (European Terrestrial Reference Frame) reference frames, a dataset of RINEX of 133 GPS permanent sites was created and processed, using the distributed sessions approach, by means of Gamit/Globk 10.3 GPS data processor, using also some SOPAC (Scripps Orbit and Permanent Array Center) and EUREF (Reference Frame Sub Commission for Europe) solutions to improve the reference frame definition and the internal constraint. All the strategies adopted to estimate coordinates and velocities of the ItalPoS Network in IGS05 will be described together with the investigated approaches to provide coordinates in ETRF89-ETRF2000 reference frames: in this case both Helmert and Boucher-Altamimi transformations were taken into account, the whole Italian territory was divided into three parts in order to optimize transformation residuals. Particular attention was paid to transition areas.
References
Z. ALTAMIMI, X. COLLILIEUX, J. LEGRAND, B. GARAYT, C. BOUCHER (2007), 1TRF2005: A new release of the International Terrestrial Reference Frame based on time series of station positions and Earth Orientation Parameters. In: Journal of Geophysical Research, 112, B09401, doi:10.1029/2007JB004949.
L. BIAGI, S. CALDERA, A. CAPRA, C. CASTAGNETTI, F. SANSÒ (2009), Densification of IGS/EPN by local permanent networks: sensitivity of results with respect to thè adjustment choices. Bulletin of Geodesy and Geomatics, VoL. LXVIII, no.3, pp. 231-253.
C. BOUCHER, Z. ALTAMIMI (1992), The EUREF Terrestrial Reference System and its first realizations. EUREF Meeting. Bem, Switzerland March 4-6.
C. BOUCHER, Z. ALTAMIMI (2007), Memo: Specifications for reference frame fixing in the analysis of a EUREF GPS campaign. Available at: http://users.auth.gr/~kvek/20070327-MEMO-ver6.pdf.
C. BRUYNINX (2004), The EUREF Permanent Network: a multi-disciplinary network serving surveyors as well as scientists. Geolnformatics, vol. 7, pp. 32-35. http://www.epncb.oma.be/.
G. CASULA, M. DUBBINI, A. GALEANDRO (2007), Modeling environmental bias and computing velocity field from data of Terra Nova Bay network in Antartica by means of a quasi-observation processing approach. U.S. Geological Survey and the National Academies, Short research paper, USGS OF-2007-1041, doi : 10.3133/of2007-l O47.srp054.
C. CASTAGNETTI, G. CASULA, M. DUBBINI, A. CAPRA (2009), Adjustment and transformation strategies of ItalPoS Permanent GNSS Network. Annals of Geophysics vol. 52, no. 2, pp. 181-195.
D. DONG, T.A. HERRING, R.W. KING (1998), Estimatìng regional deformation from a combination of space and terrestrial geodetic data. Journal of Geodesy vol. 72, no. 4, pp. 200-214.
J.M. DOW, R.E. NEILAN, G. GENDT (2005), The International GPS Service (ICS): Celebrating the 10th Anniversary and Looking to the Next Decade. Adv. Space Res. 36 vol. 36, no. 3, pp. 320-326. doi:10.1016/j.asr.2005.05.125.
A. KENYERES, C. BRUYNINX (2004), Monitoring of the EPN Coordinate Time Series for Improved Reference Frame Maintenance. GPS solutions, vol. 8, no 4, pp. 200-209.
T.A. HERRING, R.W. KING, S.C. MCCLUSKY (2006a), GPS Analysis at MIT, GAMIT Reference Manual, Release 10.3. Department of Earth, Atmospheric, and Planetary Sciences Massachusetts Institute of Technology, Cambridge MA. Available at: http://chandler.mit.edu/~simon/gtgk/GAMIT, Ref_10.3.pdf. Accessed 14 May 2008.
T.A. HERRING, R.W. KING, S.C. McCLUSKY (2006b), Global Kalman filter VLBI and GPS analysis program, GLOBK Reference Manual, Release 10.3. Department of Earth, Atmospheric, and Planetary Sciences Massachusetts Institute of Technology, Cambridge MA. Available at: http://chandler.mit.edu/~simon/gtgk/GLOBK_Ref_10.3.pdf. Accessed 23 May 2008.
LEICA GEOSYSTEMS (2005), White Paper: GPS SpiderNET - Take it to the MAX. Available at: http://www.leica-geosystems.com/corporate/en/downloads/ lgs_page_catalog.htm?cid=3159, accessed 18 February 2009.
G. SELVAGGI, RING WORKING GROUP (2006), La Rete Integrata Nazionale GPS (RING) dell'INGV: un’infrastruttura aperta per la ricerca scientifica. X Conferenza ASITA, Bolzano, Atti vol. II, pp. 1749-1754. http://ring.gm.ingv.it
E. SERPELLONI, G. CASULA, A. GALVANI, M. ANZIDEI, P. BALDI (2006), Data analysis of permanent GPS networks in Italy and surrounding regions: application of a distributed processing approach. Annals of Geophysics 49(4/5):897-928.
SOPAC (2008), SOPAC Facilities site. Available at: http://sopac.ucsd.edu/other/facilities.html. Accessed May 2008.
P. WESSEL, W.H.F. SMITH (1998), New, Improved Version of Generic Mapping Tools Released. EOS Trans. AGU, 79 (47), 579.
L. BIAGI, S. CALDERA, A. CAPRA, C. CASTAGNETTI, F. SANSÒ (2009), Densification of IGS/EPN by local permanent networks: sensitivity of results with respect to thè adjustment choices. Bulletin of Geodesy and Geomatics, VoL. LXVIII, no.3, pp. 231-253.
C. BOUCHER, Z. ALTAMIMI (1992), The EUREF Terrestrial Reference System and its first realizations. EUREF Meeting. Bem, Switzerland March 4-6.
C. BOUCHER, Z. ALTAMIMI (2007), Memo: Specifications for reference frame fixing in the analysis of a EUREF GPS campaign. Available at: http://users.auth.gr/~kvek/20070327-MEMO-ver6.pdf.
C. BRUYNINX (2004), The EUREF Permanent Network: a multi-disciplinary network serving surveyors as well as scientists. Geolnformatics, vol. 7, pp. 32-35. http://www.epncb.oma.be/.
G. CASULA, M. DUBBINI, A. GALEANDRO (2007), Modeling environmental bias and computing velocity field from data of Terra Nova Bay network in Antartica by means of a quasi-observation processing approach. U.S. Geological Survey and the National Academies, Short research paper, USGS OF-2007-1041, doi : 10.3133/of2007-l O47.srp054.
C. CASTAGNETTI, G. CASULA, M. DUBBINI, A. CAPRA (2009), Adjustment and transformation strategies of ItalPoS Permanent GNSS Network. Annals of Geophysics vol. 52, no. 2, pp. 181-195.
D. DONG, T.A. HERRING, R.W. KING (1998), Estimatìng regional deformation from a combination of space and terrestrial geodetic data. Journal of Geodesy vol. 72, no. 4, pp. 200-214.
J.M. DOW, R.E. NEILAN, G. GENDT (2005), The International GPS Service (ICS): Celebrating the 10th Anniversary and Looking to the Next Decade. Adv. Space Res. 36 vol. 36, no. 3, pp. 320-326. doi:10.1016/j.asr.2005.05.125.
A. KENYERES, C. BRUYNINX (2004), Monitoring of the EPN Coordinate Time Series for Improved Reference Frame Maintenance. GPS solutions, vol. 8, no 4, pp. 200-209.
T.A. HERRING, R.W. KING, S.C. MCCLUSKY (2006a), GPS Analysis at MIT, GAMIT Reference Manual, Release 10.3. Department of Earth, Atmospheric, and Planetary Sciences Massachusetts Institute of Technology, Cambridge MA. Available at: http://chandler.mit.edu/~simon/gtgk/GAMIT, Ref_10.3.pdf. Accessed 14 May 2008.
T.A. HERRING, R.W. KING, S.C. McCLUSKY (2006b), Global Kalman filter VLBI and GPS analysis program, GLOBK Reference Manual, Release 10.3. Department of Earth, Atmospheric, and Planetary Sciences Massachusetts Institute of Technology, Cambridge MA. Available at: http://chandler.mit.edu/~simon/gtgk/GLOBK_Ref_10.3.pdf. Accessed 23 May 2008.
LEICA GEOSYSTEMS (2005), White Paper: GPS SpiderNET - Take it to the MAX. Available at: http://www.leica-geosystems.com/corporate/en/downloads/ lgs_page_catalog.htm?cid=3159, accessed 18 February 2009.
G. SELVAGGI, RING WORKING GROUP (2006), La Rete Integrata Nazionale GPS (RING) dell'INGV: un’infrastruttura aperta per la ricerca scientifica. X Conferenza ASITA, Bolzano, Atti vol. II, pp. 1749-1754. http://ring.gm.ingv.it
E. SERPELLONI, G. CASULA, A. GALVANI, M. ANZIDEI, P. BALDI (2006), Data analysis of permanent GPS networks in Italy and surrounding regions: application of a distributed processing approach. Annals of Geophysics 49(4/5):897-928.
SOPAC (2008), SOPAC Facilities site. Available at: http://sopac.ucsd.edu/other/facilities.html. Accessed May 2008.
P. WESSEL, W.H.F. SMITH (1998), New, Improved Version of Generic Mapping Tools Released. EOS Trans. AGU, 79 (47), 579.
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