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Verification of the polish geodetic reference frame by means of a new solution based on permanent GNSS data from the years 2011-2014 / Tomasz Liwosz in Reports on geodesy and geoinformatics, vol 102 n° 1 (December 2016)  

Public [article]  inReports on geodesy and geoinformatics > vol 102 n° 1 (December 2016) . - pp 52 - 66 Titre : Verification of the polish geodetic reference frame by means of a new solution based on permanent GNSS data from the years 2011-2014 Type de document : Article/Communication Auteurs : Tomasz Liwosz, Auteur ; M. Ryczywolski, Auteur Année de publication : 2016 Article en page(s) : pp 52 - 66 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux [Termes IGN] Bernese [Termes IGN] coordonnées GNSS [Termes IGN] European Terrestrial Reference Frame [Termes IGN] Pologne [Termes IGN] repère de référence [Termes IGN] réseau de premier ordre [Termes IGN] station permanente Résumé : (Auteur) The new solution for the Polish geodetic primary GNSS network was created to verify the currently used reference frame (PL-ETRF2000). The new solution is based on more GNSS data (more daily observation sessions included, a longer data timespan, GLONASS observations added) which were processed in a newer reference frame (IGb08) according to up-to-date methodology and using the latest version of Bernese GNSS Software. The new long-term solution (spanning 3.7 years) was aligned to the IGb08 reference frame using a minimum constraints approach. We categorized Polish reference stations into two categories according to their data length. We obtained good agreement of the new solution with the PL-ETRF2000: for most stations position differences did not exceed 5 mm in horizontal, and 10 mm in vertical components. However, for 30 stations we observed discontinuities in position time series, mostly due to GNSS equipment changes, which occured after the introduction of PL-ETRF2000. Position changes due to the discontinuities reached 9.1 mm in horizontal components, and 26.9 mm in vertical components. The new solution takes into account position discontinuities, and in addition also includes six new stations which were installed after the introduction of the PL-ETRF2000. Therefore, we propose to update the currently-used reference frame for the Polish geodetic primary network (PL-ETRF2000) with the new solution. The new solution was also accepted by the EUREF Technical Working Group as a class A solution (highest accuracy) according to EUREF standards. Numéro de notice : A2017-302 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : 10.1515/rgg-2016-0027 En ligne : https://doi.org/10.1515/rgg-2016-0027 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85337 [article]