Combination of Earth Orientation Parameters and Terrestrial Frame at the observation level

التفاصيل البيبلوغرافية
العنوان: Combination of Earth Orientation Parameters and Terrestrial Frame at the observation level
المؤلفون: D. Gambis, P. Charlot, Florent Deleflie, Geraldine Bourda, T. Lalanne, Sylvain Loyer, J. M. Lemoine, J.-C. Marty, Laurent Soudarin, T. Carlucci, Richard Biancale
المساهمون: Dynamique terrestre et planétaire (DTP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire aquitain des sciences de l'univers (OASU), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Gemini (LG), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)
المصدر: International Association of Geodesy Symposia
Geodetic Reference Frames
Geodetic Reference Frames IAG Symposium
Geodetic Reference Frames IAG Symposium, Oct 2006, Munich, Germany. pp.3-9, ⟨10.1007/978-3-642-00860-3_1⟩
Geodetic Reference Frames ISBN: 9783642008597
بيانات النشر: HAL CCSD, 2006.
سنة النشر: 2006
مصطلحات موضوعية: terrestrial reference frames, 010504 meteorology & atmospheric sciences, business.industry, Nutation, Earth rotation, Frame (networking), [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP], DORIS (geodesy), International Earth Rotation and Reference Systems Service, Geodesy, 01 natural sciences, Geography, robust combination, 0103 physical sciences, Very-long-baseline interferometry, Global Positioning System, business, 010303 astronomy & astrophysics, Terrestrial reference frame, 0105 earth and related environmental sciences, Earth's rotation
الوصف: International audience; A rigorous approach to simultaneously determine both a terrestrial reference frame (TRF) materialized by station coordinates and Earth Orientation Parameters (EOP) is now currently applied on a routine basis in a coordinated project of the Groupe de Recherches de Géodésie Spatiale (GRGS). To date, various techniques allow the determination of all or a part of the Earth Orientation Parameters: Laser Ranging to the Moon (LLR) and to dedicated artificial satellites (SLR), Very Large Baseline Interferometry on extragalactic sources (VLBI), Global Positioning System (GPS) and more recently DORIS introduced in the IERS activities in 1995. Observations of the different astro-geodetic techniques are separately processed at different analysis centres using unique software package GINS DYNAMO, developed and maintained at GRGS. The datum-free normal equation matrices weekly derived from the analyses of the different techniques are then stacked to derive solutions of station coordinates and Earth Orientation Parameters (EOP). Two approaches are made: the first one consists to accumulate normal equations (NEQs) derived from intra-technique single run solution in a single run combined solution; the second one leads to weekly combinations of NEQs. Results are made available at the IERS site (ftp iers1.bkg.bund.de) in the form of SINEX files. The strength of the method is the use of a set of identical up-to-date models and standards in unique software for all techniques. In addition the solution benefits from mutual constraints brought by the various techniques; in particular UT1 and nutation offsets series derived from VLBI are densified and complemented by respectively LOD and nutation rates estimated by GPS. The analyses we have performed over the first four months of the year 2006 are still preliminary; they show that the accuracy and stability of the EOP solution are very sensitive to a number of critical parameters mostly linked to the terrestrial reference frame realization, the way that minimum constraints are applied and the quality of local ties. We present thereafter the procedures which were applied, recent analyses and the latest results obtained.
اللغة: English
ردمك: 978-3-642-00859-7
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48572f58b2fd6b46bfc04d56fc16cc65
https://hal.archives-ouvertes.fr/hal-00400962
حقوق: OPEN
رقم الأكسشن: edsair.doi.dedup.....48572f58b2fd6b46bfc04d56fc16cc65
قاعدة البيانات: OpenAIRE