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Auteur Erricos C. Pavlis |
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Affiner la recherche Interroger des sources externesFuture global SLR network evolution and its impact on the terrestrial reference frame / Alexander Kehm in Journal of geodesy, vol 92 n° 6 (June 2018)
Titre : Future global SLR network evolution and its impact on the terrestrial reference frame Type de document : Article/Communication Auteurs : Alexander Kehm, Auteur ; Mathis Blossfeld, Auteur ; Erricos C. Pavlis, Auteur ; Florian Seitz, Auteur Année de publication : 2018 Article en page(s) : pp 625 – 635 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] données TLS (télémétrie)
[Termes IGN] International Terrestrial Reference Frame
[Termes IGN] paramètres d'orientation de la Terre
[Termes IGN] télémétrie laser sur satelliteRésumé : (Auteur) Satellite laser ranging (SLR) is an important technique that contributes to the determination of terrestrial geodetic reference frames, especially to the realization of the origin and the scale of global networks. One of the major limiting factors of SLR-derived reference frame realizations is the datum accuracy which significantly suffers from the current global SLR station distribution. In this paper, the impact of a potential future development of the SLR network on the estimated datum parameters is investigated. The current status of the SLR network is compared to a simulated potential future network featuring additional stations improving the global network geometry. In addition, possible technical advancements resulting in a higher amount of observations are taken into account as well. As a result, we find that the network improvement causes a decrease in the scatter of the network translation parameters of up to 24%, and up to 20% for the scale, whereas the technological improvement causes a reduction in the scatter of up to 27% for the translations and up to 49% for the scale. The Earth orientation parameters benefit by up to 15% from both effects. Numéro de notice : A2018-152 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-017-1083-1 Date de publication en ligne : 09/11/2017 En ligne : https://doi.org/10.1007/s00190-017-1083-1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89765
in Journal of geodesy > vol 92 n° 6 (June 2018) . - pp 625 – 635[article]
Titre : Resolution on the nomenclature of space geodetic reference points and local tie measurements Type de document : Article/Communication Auteurs : Sten Bergstrand, Auteur ; Xavier Collilieux Editeur : [s.l.] : [s.n.] Année de publication : nov 2014 Conférence : REFAG 2014, Reference Frames for Applications in Geosciences (IAG 2014 - Commission 1 symposium) 13/10/2014 17/10/2014 Kirchberg Grand Duché du Luxembourg Proceedings Springer Importance : 4 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] point de liaison (géodésie)
[Termes IGN] point de repère
[Termes IGN] terminologieRésumé : (auteur) We establish a specific but general terminology in order to clarify discussions on topics related to local tie measurements. The terminology meets the requirements of an observing system that encompasses existing International Earth Rotation and Reference Systems Service (IERS) techniques as well as other observation techniques of the Global Geodetic Observing System (GGOS). Numéro de notice : C2014-031 Affiliation des auteurs : LASTIG LAREG+Ext (2012-mi2018) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : sans En ligne : https://www.iers.org/SharedDocs/Publikationen/EN/IERS/WorkingGroups/SiteSurvey/B [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83276 Documents numériques
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Resolution on the nomenclature ... - pdf auteurAdobe Acrobat PDF
Titre : DPOD2005: An extension of ITRF2005 for Precise Orbit Determination Type de document : Article/Communication Auteurs : Pascal Willis Année de publication : 2009 Article en page(s) : pp 535 - 544 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] coordonnées cartésiennes géocentriques
[Termes IGN] DORIS
[Termes IGN] International Terrestrial Reference Frame
[Termes IGN] orbitographie par GNSS
[Termes IGN] série temporelle
[Termes IGN] station DORISRésumé : (auteur) For Precise Orbit Determination of altimetry missions, we have computed a data set of DORIS station coordinates defined for specific time intervals called DPOD2005. This terrestrial reference set is an extension of ITRF2005. However, it includes all new DORIS stations and is more reliable, as we disregard stations with large velocity formal errors as they could contaminate POD computations in the near future. About 1/4 of the station coordinates need to be defined as they do not appear in the original ITRF2005 realization. These results were verified with available DORIS and GPS results, as the integrity of DPOD2005 is almost as critical as its accuracy. Besides station coordinates and velocities, we also provide additional information such as periods for which DORIS data should be disregarded for specific DORIS stations, and epochs of coordinate and velocity discontinuities (related to either geophysical events, equipment problem or human intervention). The DPOD model was tested for orbit determination for TOPEX/Poseidon (T/P), Jason-1 and Jason-2. Test results show DPOD2005 offers improvement over the original ITRF2005, improvement that rapidly and significantly increases after 2005. Improvement is also significant for the early T/P cycles indicating improved station velocities in the DPOD2005 model and a more complete station set. Following 2005 the radial accuracy and centering of the ITRF2005-original orbits rapidly degrades due to station loss. Numéro de notice : A2009-596 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.asr.2009.04.018 En ligne : https://doi.org/10.1016/j.asr.2009.04.018 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=101993
in Advances in space research > vol 44 n° 5 (1 September 2009) . - pp 535 - 544[article]
Titre : GGOS Working Group on Ground Networks Communications Type de document : Article/Communication Auteurs : Michael Pearlman, Auteur ; Zuheir Altamimi Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2006 Collection : International Association of Geodesy Symposia, ISSN 0939-9585 num. 130 Conférence : IAG 2005, IAG Symposium IAG conference Dynamic Planet - Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools 22/08/2005 26/08/2005 Cairns Australie Proceedings Springer Importance : pp 719 - 726 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] bruit blanc
[Termes IGN] bruit rose
[Termes IGN] cohérence des données
[Termes IGN] coordonnées cartésiennes géocentriques
[Termes IGN] stabilité
[Termes IGN] station de référenceRésumé : (auteur) Analysing time series of space-geodetic station coordinates, we show that VLBI, SLR and DORIS station motions have a white noise error spectrum, while the majority of GPS station motion have a flicker noise error spectrum. In the latter case, discontinuities in the series do not account for this spectrum. Atmospheric loading has a white noise spectrum, at a much lower level than geodetic measurement errors in the long term. The series of transformation parameters derived for the GPS colocation sub-networks with VLBI, SLR and DORIS have very close spectral characteristics, reaching the 1 mm stability level at one-year interval in a white noise context. Numéro de notice : C2005-045 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/978-3-540-49350-1_103 En ligne : https://doi.org/10.1007/978-3-540-49350-1_103 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102734
