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Reference frames for applications in geosciences, Proceedings of IAG Symposium REFAG 2010 / Zuheir Altamimi (2013)

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Titre :	Reference frames for applications in geosciences, Proceedings of IAG Symposium REFAG 2010
Type de document :	Actes de congrès
Auteurs :	Zuheir Altamimi , Éditeur scientifique ; Xavier Collilieux , Éditeur scientifique
Mention d'édition :	1
Editeur :	Berlin, Heidelberg, Vienne, New York, ... : Springer
Année de publication :	2013
Collection :	International Association of Geodesy Symposia, ISSN 0939-9585 num. 138
Conférence :	REFAG 2010, Reference Frames for Applications in Geosciences, IAG symposium 04/10/2010 08/10/2010 Champs-sur-Marne France Proceedings Springer
Importance :	284 p.
Format :	21 x 28 cm
ISBN/ISSN/EAN :	978-3-642-32997-5
Note générale :	Bibliographie ISBN online : 978-3-642-32998-2
Langues :	Anglais (eng)
Descripteur :	[Vedettes matières IGN] Systèmes de référence et réseaux [Termes IGN] International Terrestrial Reference Frame [Termes IGN] système de référence céleste [Termes IGN] système de référence géodésique [Termes IGN] système de référence local [Termes IGN] système de référence terrestre conventionnel
Résumé :	(Auteur) [Préface] Reference systems and frames are of primary importance for many Earth science applications, satellite navigation as well as for practical applications in geo-information. A precisely defined reference frame is needed for the quantification of, e.g. Earth rotation and its gravity field, global and regional sea level variation, tectonic motion and deformation, postglacial rebound, geocenter motion, large-scale deformation due to Earthquakes, local subsidence and other ruptures and crustal dislocations. All of these important scientific applications fundamentally depend on a truly global reference system that only space geodesy can realize. The primary scope of REFAG2010 was to address today's achievements on theoretical concepts of reference systems and their practical implementations by individual space geodetic techniques and their combinations, underlying limiting factors, systematic errors and novel approaches for future improvements.
Note de contenu :	1. Geodetic Reference Frames: 40 Years of Technological Progress and of International Cooperation: 1970-2010 C. Boucher Part I Theory and Realization of Global Terrestrial Reference Systems 2 ITRF Combination: Theoretical and Practical Considerations and Lessons from ITRF2008 Z. Altamimi, X. Collilieux, and L. Metivier 3 Distributed Processing for Large Geodetic Solutions H. Boomkamp 4 Geocenter Variations from Analysis of SLR Data M.K. Cheng, J.C. Ries, and B.D. Tapley 5 External Evaluation of the Origin and Scale of the International Terrestrial Reference Frame X. Collilieux and Z. Altamimi 6 GRGS Evaluation of ITRF2008, from SLR Data F. Deleflie, D. Coulot, B. de Saint-Jean, O. Laurain, and P. Exertier 7 Alternative Definitions of the Terrestrial Reference System and Its Realization in Reference Frames H. Drewes, D. Angermann, and M. Seitz 8 Evaluation of GNSS Monument Stability R. Haas, S. Bergstrand, and W. Lehner 9 Comparison of Realizations of the Terrestrial Reference Frame C. Ma, D. MacMillan, S. Bolotin, K. Le Bail, D. Gordon, and J. Gipson 10 The 2010 Reference Edition of the IERS Conventions G. Petit and B. Luzum 11 Dependence of IGS Products on the ITRF Datum J.R. Ray, P. Rebischung, and R. Schmid 12 Recent Results from the IGS Terrestrial Frame Combinations P. Rebischung and B. Garayt 13 Local Ties and Co-Location Sites: Some Considerations After the Release of ITRF2008 P. Sarti, C. Abbondanza, and Z. Altamimi 14 Small Trends and Oscillations in the 25 Year ILRS Translations and Scale Time Series C. Sciarretta, V. Luceri, and G. Bianco 15 Accuracy Assessment of the ITRS 2008 Realization of DGFI: DTRF2008 Manuela Seitz, Detlef Angermann, and Hermann Drewes 16 Monitoring Site Stability at the Space Geodesy Facility,Herstmonceux, UK M. Wilkinson, G. Appleby, R. Sherwood, and V. Smith Part II Strengths, Weaknesses, Modelling Standards and Processing Strategies of Space Geodetic Techniques 17 A Priori Gradients in the Analysis of Space Geodetic Observations J. Bohm, L. Urquhart, P. Steigenberger, R. Heinkelmann, V. Nafisi,and H. Schuh 18 Why Combining at the Observation Level? D. Gambis, J.Y. Richard, R. Biancale, and C. Bizouard 19 Time-Correlated GPS Noise Dependency on Data Time Period Alvaro Santamara-Gomez, Marie-Noelle Bouin, Xavier Collilieux, and Guy Woppelmann 20 GPS-Specific Local Effects at the Geodetic Observatory Wettzell P. Steigenberger, U. Hugentobler, R. Schmid, U. Hessels, T. Klugel,and M. Seitz Part III Definition, Establishment, Maintenance and Integration of Regional Reference Frames 21 The First Insight into Station Velocities in Republic of Serbia D. Blagojevic and V. Vasilic 22 IAG WG SC1.3 on Regional Dense Velocity Fields: First Results and Steps Ahead C. Bruyninx, J. Legrand, Z. Altamimi, M. Becker, M. Craymer, L. Combrinck,A. Combrink, J. Dawson, R. Dietrich, R. Fernandes, R. Govind, J. Griffiths,T. Herring, A. Kenyeres, R. King, C. Kreemer, D. Lavallee, L. Sanchez,G. Sella, Z. Shen, A. Santamara-Gomez, and G. Woppelmann 23 Local Ties at Fundamental Stations Ulla Kallio and Markku Poutanen 24 Long-Term Stability of the SIRGAS Reference Frame and Episodic Station Movements Caused by the Seismic Activity in the SIRGAS Region L. Sanchez, W. Seemuller, H. Drewes, L. Mateo, G. Gonzaìlez, A. da Silva, J. Pampillon, W. Martnez, V. Cioce, D. Cisneros, and S. Cimbaro Part IV Interaction Between the Celestial and the Terrestrial Reference Frames 25 The Impact of the New IAU Resolutions on ICRF Definition and Realization N. Capitaine 26 Effects of ICRF2 on the TRF, CRF, and EOP David Gordon, Chopo Ma, Dan MacMillan, Sergei Bolotin, Karine Le Bail, and John Gipson 27 Systematic Inconsistencies Between VLBI CRF and TRF Solutions Caused by Different Analysis Options R. Heinkelmann and V. Tesmer 28 The Celestial Reference Frame at X/Ka-band (8.4/32 GHz) C.S. Jacobs, J.E. Clark, C. Garca-Miro M.B. Heflin, S. Horiuchi, V.E. Moll, L.J. Skjerve, and O.J. Sovers 29 Systematic Errors of a VLBI Determined TRF Investigated by Simulations L. Plank, H. Spicakova, J. Bohm, T. Nilsson, A. Pany, and H. Schuh Part V Definition and Establishment of Vertical Reference Systems 30 Influence of Vertical Datum Inconsistencies on Gravity Field Modelling Z. Faskova ,R.C underlk, K. Mikula, and R. Tenzer 31 The Role of a Conventional Transformation Scheme for Vertical Reference Frames C. Kotsakis 32 Comparison of Latest Global and Regional Gravimetric Geoid Models with GPS/Leveling Geoidal Undulations Over Japan Y. Kuroishi 33 Creation of Vertical Reference Surfaces at Sea Using Altimetry and GPS L. Pineau-Guillou and L. Dorst 34 Combined Adjustment of GRACE and Geodetic Observations of Vertical Crustal Motion in the Great Lakes Region E. Rangelova and M.G. Sideris 35 Some Features of TOPEX/POSEIDON Data Application in Gravimetry O. Yu. Vinogradova and E.A. Spiridonov 36 Towards the Unification of the Vertical Datum Over the North American Continent D.A. Smith, M.Veronneau, D.R. Roman, J. Huang, Y.M. Wang, and M.G. Sideris Part VI Usage and Applications of Reference Frames in Geosciences 37 Improving SIRGAS Ionospheric Model C. Brunini, F. Azpilicueta, M. Gende, E. Camilion, and E. Gularte 38 Use of Reference Frames for Interplanetary Navigation at JPL Michael Heflin, Chris Jacobs, Ojars Sovers, Angelyn Moore, and Sue Owen 39 Using Modified Allan Variance for Time Series Analysis Z. Malkin 40 The Role of the TRS in Precision Agriculture: DGPS with EGNOS and RTK Positioning Using Data from NTRIP Streams I. Osorio and M. Cunha Author Index
Numéro de notice :	15704
Affiliation des auteurs :	LASTIG LAREG (2012-mi2018)
Thématique :	POSITIONNEMENT
Nature :	Actes
nature-HAL :	DirectOuvrColl/Actes
DOI :	10.1007/978-3-642-32998-2
En ligne :	http://dx.doi.org/10.1007/978-3-642-32998-2
Format de la ressource électronique :	URL sommaire
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=34783

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External evaluation of the origin and scale of the international terrestrial reference frame / Xavier Collilieux (2013)

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contenu dans Reference frames for applications in geosciences, Proceedings of IAG Symposium REFAG 2010 / Zuheir Altamimi (2013)

Titre :	External evaluation of the origin and scale of the international terrestrial reference frame
Type de document :	Article/Communication
Auteurs :	Xavier Collilieux , Auteur ; Zuheir Altamimi , Auteur
Editeur :	Berlin, Heidelberg, Vienne, New York, ... : Springer
Année de publication :	2013
Collection :	International Association of Geodesy Symposia, ISSN 0939-9585 num. 138
Conférence :	REFAG 2010, Reference Frames for Applications in Geosciences, IAG symposium 04/10/2010 08/10/2010 Champs-sur-Marne France Proceedings Springer
Importance :	pp 27 - 31
Note générale :	Bibliographie
Langues :	Anglais (eng)
Descripteur :	[Vedettes matières IGN] Systèmes de référence et réseaux [Termes IGN] International Terrestrial Reference Frame [Termes IGN] repère de référence [Termes IGN] système de référence mondial
Résumé :	(Auteur) The International Terrestrial Reference Frame (ITRF) datum definition is of primary importance for many Earth Science Applications. While accurate origin information (Earth Center of Mass) is required for any precise satellite orbit determination, an accurate scale is indispensable for various calibrations (altimeter absolute bias, GNSS satellite antenna phase center offsets). Studies involving vertical motion determination, such as mean sea level and Glacial Isostatic Adjustment (GIA) are also affected by the choice of the underlying Terrestrial Reference Frame. ITRF datum accuracy evaluation has been tradi-tionally performed by comparing independent space geodetic technique performances and successive ITRF solutions. While the ITRF2005 to ITRF2000 comparison may lead to pessimistic evaluation of the ITRF datum accuracy, the question is raised whether the error budget deduced from the ITRF2008 to ITRF2005 comparison would be optimistic, espe-cially for the time evolution of the origin. It is fundamental to explore external ways to evaluate the ITRF frame parameters and especially their time evolution which impacts the results of many climatic studies. The state of art of available methods is reviewed by stressing their advantages and drawbacks. Most of them have been already implemented and show that the ITRF2005 origin rate is probably reliable at the millimeter per year level. However these methods have been applied on different velocity field with different models and required assumptions which make their mutual comparison difficult. Thus, new analyses are required in the future.
Numéro de notice :	C2010-011
Affiliation des auteurs :	LAREG (1991-2011)
Thématique :	POSITIONNEMENT
Nature :	Communication
nature-HAL :	ComAvecCL&ActesPubliésIntl
DOI :	10.1007/978-3-642-32998-2_5
Date de publication en ligne :	27/11/2012
En ligne :	https://doi.org/10.1007/978-3-642-32998-2_5
Format de la ressource électronique :	URL article
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=65066

Dependence of IGS products on the ITRF datum / Jim Ray (2013)

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contenu dans Reference frames for applications in geosciences, Proceedings of IAG Symposium REFAG 2010 / Zuheir Altamimi (2013)

Titre :	Dependence of IGS products on the ITRF datum
Type de document :	Article/Communication
Auteurs :	Jim Ray, Auteur ; Paul Rebischung , Auteur ; Ralf Schmid, Auteur
Editeur :	Berlin, Heidelberg, Vienne, New York, ... : Springer
Année de publication :	2013
Collection :	International Association of Geodesy Symposia, ISSN 0939-9585 num. 138
Conférence :	REFAG 2010, Reference Frames for Applications in Geosciences, IAG symposium 04/10/2010 08/10/2010 Champs-sur-Marne France Proceedings Springer
Importance :	pp 63 - 67
Note générale :	Bibliographie
Langues :	Anglais (eng)
Descripteur :	[Vedettes matières IGN] Systèmes de référence et réseaux [Termes IGN] antenne GNSS [Termes IGN] étalonnage d'instrument [Termes IGN] International GNSS Service [Termes IGN] International Terrestrial Reference Frame [Termes IGN] repère de référence
Résumé :	(Auteur) Throughout its nearly two decades, the International GNSS (Global Navigation Satellite Systems) Service (IGS) has sought to align its products closely to successive realizations of the International Terrestrial Reference Frame (ITRF). This has been disruptive for IGS users at times, especially during the 1990s when some radical ITRF datum choices were adopted. During the past decade, IGS impacts due to ITRF updates have been smaller and mostly caused by errors in the results from the contributing space geodetic techniques. Frame orientations (rotations) are purely conventional, so the IGS relies on the ITRF via a subset of reliable, globally distributed stations. Except for the period when ITRF93 was used, this procedure has worked well. The IGS origin in principle could be self-reliant or contributory to ITRF by direct observation of a frame origin aligned to the long-term center of mass of the entire Earth system. In practice, however, GNSS-based results have been less reliable than those from satellite laser ranging (SLR). So the ITRF origin, based on SLR only, has been adopted historically. Until the transition from ITRF2005 to ITRF2008, there have sometimes been significant origin shifts as SLR results have evolved. However, the present stability of the ITRF origin may finally have reached the few-mm level. In many respects, the IGS dependence on the ITRF scale is most subtle and problematic. In addition to an overall Helmert alignment of the IGS frame to match the ITRF scale (and other datum parameters), since 2006 the IGS calibration values for the GNSS satellite antenna z-offsets depend directly on the same ITRF scale (due to high correlations if the IGS frame scale is not fixed). We therefore face a non-linear situation to maintain full consistency between all IGS products and the ITRF scale: each IGS frame contribution to ITRF based on one set of antenna calibrations must be used, together with frames from other techniques, to determine an updated ITRF and new antenna calibrations, which are then no longer strictly consistent with the starting IGS frame. One can hope that the process will iteratively converge eventually. But large shifts in the ITRF scale, such as the -1 ppb change from ITRF2005 to ITRF2008, are highly disturbing, much more so than the associated rotational or translational shifts.
Numéro de notice :	C2010-012
Affiliation des auteurs :	LAREG+Ext (1991-2011)
Thématique :	POSITIONNEMENT
Nature :	Communication
nature-HAL :	ComAvecCL&ActesPubliésIntl
DOI :	10.1007/978-3-642-32998-2_11
Date de publication en ligne :	27/11/2012
En ligne :	http://dx.doi.org/10.1007/978-3-642-32998-2_11
Format de la ressource électronique :	URL article
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=65067

Recent results from the IGS terrestrial frame combinations / Paul Rebischung (2013)

Local ties and co-location sites : Some considerations after the release of ITRF2 / Pierguido Sarti (2013)

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contenu dans Reference frames for applications in geosciences, Proceedings of IAG Symposium REFAG 2010 / Zuheir Altamimi (2013)

Titre :	Local ties and co-location sites : Some considerations after the release of ITRF2
Type de document :	Article/Communication
Auteurs :	Pierguido Sarti, Auteur ; Claudio Abbondanza, Auteur ; Zuheir Altamimi , Auteur
Editeur :	Berlin, Heidelberg, Vienne, New York, ... : Springer
Année de publication :	2013
Collection :	International Association of Geodesy Symposia, ISSN 0939-9585 num. 138
Conférence :	REFAG 2010, Reference Frames for Applications in Geosciences, IAG symposium 04/10/2010 08/10/2010 Champs-sur-Marne France Proceedings Springer
Importance :	pp 75 - 80
Note générale :	Bibliographie
Langues :	Anglais (eng)
Descripteur :	[Vedettes matières IGN] Systèmes de référence et réseaux [Termes IGN] International Terrestrial Reference Frame [Termes IGN] point de liaison (géodésie) [Termes IGN] résidu
Résumé :	(Auteur) Tie vectors (TVs) measured at co-location sites carry fundamental information for the computation of the International Terrestrial Reference Frame (ITRF). The combination of the different frames stemming from each space geodetic (SG) technique relies on the availability and accuracy of the relative positions between reference points of co-located SG instruments, i.e. TV. If, on the one hand, TVs accurate at 1 mm level are sought to preserve the accuracy of the global frame and fulfill the requirements of the global geodetic observing system (GGOS), on the other hand, the assessment of TVs accuracy is not easy. Their accuracies are often questioned on the base of their agreement within the combination of SG solutions and the combination residuals. Though, the final discrepancies highlighted by the combination residuals do not depend uniquely on the accuracy of the TVs but are influenced by several factors of different origin. In this paper, we identify some of these factors and investigate their possible origin adopting different perspectives: local ties and terrestrial surveying, SG techniques and frames combination. Our purpose is to highlight some of the possible systematic errors in terrestrial and SG data analysis as well as to identify actions to be taken in the near future to mitigate the biases highlighted by the residuals of the combination. In contrast to what is commonly assumed, we show that the residuals are potentially influenced by a combination of biases affecting the TVs, their alignment and the SG solutions. Therefore, an objective evaluation of the error sources is necessary for each SG technique in order to improve their results as well as the combined SG products.
Numéro de notice :	C2010-014
Affiliation des auteurs :	LAREG+Ext (1991-2011)
Thématique :	POSITIONNEMENT
Nature :	Communication
nature-HAL :	ComAvecCL&ActesPubliésIntl
DOI :	10.1007/978-3-642-32998-2_13
Date de publication en ligne :	27/11/2012
En ligne :	https://doi.org/10.1007/978-3-642-32998-2_13
Format de la ressource électronique :	URL article
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=65069

Time-correlated GPS noise dependency on data time period / Alvaro Santamaria Gomez (2013)

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contenu dans Reference frames for applications in geosciences, Proceedings of IAG Symposium REFAG 2010 / Zuheir Altamimi (2013)

Titre :	Time-correlated GPS noise dependency on data time period
Type de document :	Article/Communication
Auteurs :	Alvaro Santamaria Gomez, Auteur ; Marie-Noëlle Bouin , Auteur ; Xavier Collilieux , Auteur ; Guy Wöppelmann , Auteur
Editeur :	Berlin, Heidelberg, Vienne, New York, ... : Springer
Année de publication :	2013
Collection :	International Association of Geodesy Symposia, ISSN 0939-9585 num. 138
Conférence :	REFAG 2010, Reference Frames for Applications in Geosciences, IAG symposium 04/10/2010 08/10/2010 Champs-sur-Marne France Proceedings Springer
Importance :	pp 119 - 124
Note générale :	Bibliographie
Langues :	Anglais (eng)
Descripteur :	[Vedettes matières IGN] Navigation et positionnement [Termes IGN] analyse diachronique [Termes IGN] bruit (théorie du signal) [Termes IGN] filtrage du bruit [Termes IGN] positionnement par GPS [Termes IGN] série temporelle
Résumé :	(Auteur) GPS position time series contain time-correlated noise. The estimated parameters using correlated time series data, as station velocities, are then more uncertain than if the time series data were uncorrelated. If the level of the time-correlated noise is not taken into account, the estimated formal uncertainties will be smaller. By estimating the type and amplitude of the noise content in time series, more realistic formal uncertainties can be assessed. However, time-correlated noise amplitude is not constant in long time series, but depends on the time period of the time series data. Older time series data contain larger time-correlated noise amplitudes than newer time series data. This way, shorter time series with older data time period exhibit time-correlated noise amplitudes similar to the whole time series. This paper focuses on the source of the time-correlated noise amplitude decrease from older to newer time series period data. The results of several tested sources are presented. Neither the increasing ambiguity fixation rate, nor the increasing number of tracking stations, nor the increasing number of observed satellites are likely the source of the noise reduction. The quality improvement of the equipment of both tracking network and constellation is likely the main source of the correlated noise evolution.
Numéro de notice :	C2010-015
Affiliation des auteurs :	LAREG (1991-2011)
Thématique :	POSITIONNEMENT
Nature :	Communication
nature-HAL :	ComAvecCL&ActesPubliésIntl
DOI :	10.1007/978-3-642-32998-2_19
Date de publication en ligne :	27/11/2012
En ligne :	http://dx.doi.org/10.1007/978-3-642-32998-2_19
Format de la ressource électronique :	URL article
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=65070

IAG WG SC1.3 on regional dense velocity fields : First results and steps ahead / Carine Bruyninx (2013)

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contenu dans Reference frames for applications in geosciences, Proceedings of IAG Symposium REFAG 2010 / Zuheir Altamimi (2013)

Titre :	IAG WG SC1.3 on regional dense velocity fields : First results and steps ahead
Type de document :	Article/Communication
Auteurs :	Carine Bruyninx, Auteur ; Juliette Legrand, Auteur ; Zuheir Altamimi , Auteur ; Matthias Becker, Auteur ; M. Craymer, Auteur ; et al., Auteur
Editeur :	Berlin, Heidelberg, Vienne, New York, ... : Springer
Année de publication :	2013
Collection :	International Association of Geodesy Symposia, ISSN 0939-9585 num. 138
Conférence :	REFAG 2010, Reference Frames for Applications in Geosciences, IAG symposium 04/10/2010 08/10/2010 Champs-sur-Marne France Proceedings Springer
Importance :	pp 137 - 145
Note générale :	Bibliographie
Langues :	Anglais (eng)
Descripteur :	[Vedettes matières IGN] Navigation et positionnement [Termes IGN] champ de vitesse [Termes IGN] International Terrestrial Reference Frame [Termes IGN] positionnement par GNSS [Termes IGN] réseau géodésique terrestre [Termes IGN] station GNSS
Résumé :	(Auteur) The Working Group on "Regional Dense Velocity Fields" (see http://epncb.oma.be/IAG) of the International Association of Geodesy (IAG) aims at densifying the International Terrestrial Reference Frame and creating a dense velocity field based on regional and global GNSS networks. With the goal to generate a high-quality solution for a core network, several newly reprocessed global and regional cumulative position and velocity solutions were submitted to the Working Group. In order to find a consensus on discontinuity epochs for stations common to several networks (an issue which was problematic in previous submissions), the new submissions were restricted to contain only the core networks over which the analyst has full control so that ITRF2008 discontinuities could be applied. The 3D-RMS of the agreement of the new solutions with the ITRF2008 (after outlier rejection) varies between 0.6 and 1.1 mm/year; it is extremely good for some solutions, while others still require more iteration to reach the required level of agreement. A part of these disagreements has been identified and often originates in the use of different data time spans within the ITRF2008 and submitted solution. In the upcoming year, the Working Group expects to generate and use a discontinuity database complementing the ITRF2008 set and identify/solve the sources of disagreements. In addition, several of the regional solutions will be reprocessed to embed the regional network in a global network and reduce the error induced by the network effect.
Numéro de notice :	C2010-016
Affiliation des auteurs :	LAREG+Ext (1991-2011)
Thématique :	POSITIONNEMENT
Nature :	Communication
nature-HAL :	ComAvecCL&ActesPubliésIntl
DOI :	10.1007/978-3-642-32998-2_22
Date de publication en ligne :	27/11/2012
En ligne :	https://doi.org/10.1007/978-3-642-32998-2_22
Format de la ressource électronique :	URL article
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=65071

Geodetic reference frames : 40 years of technological progress and of international cooperation : 1970-2010 / Claude Boucher (2013)

ITRF combination : Theoretical and practical considerations and lessons from ITRF2008 / Zuheir Altamimi (2013)

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contenu dans Reference frames for applications in geosciences, Proceedings of IAG Symposium REFAG 2010 / Zuheir Altamimi (2013)

Titre :	ITRF combination : Theoretical and practical considerations and lessons from ITRF2008
Type de document :	Article/Communication
Auteurs :	Zuheir Altamimi , Auteur ; Xavier Collilieux , Auteur ; Laurent Métivier , Auteur
Editeur :	Berlin, Heidelberg, Vienne, New York, ... : Springer
Année de publication :	2013
Collection :	International Association of Geodesy Symposia, ISSN 0939-9585 num. 138
Conférence :	REFAG 2010, Reference Frames for Applications in Geosciences, IAG symposium 04/10/2010 08/10/2010 Champs-sur-Marne France Proceedings Springer
Importance :	pp 7 - 12
Note générale :	Bibliographie
Langues :	Anglais (eng)
Descripteur :	[Vedettes matières IGN] Systèmes de référence et réseaux [Termes IGN] International Terrestrial Reference Frame [Termes IGN] repère de référence [Termes IGN] système de référence géodésique
Résumé :	(Auteur) The current ITRF construction is based on a two-step approach, combining input data provided by space geodesy techniques (VLBI, SLR, GPS, DORIS) in the form of time series of station positions and Earth Orientation Parameters. In the first step, the individual technique time series are rigorously stacked (accumulated) yielding long-term secular solutions, while the second step forms the ITRF final combination of the four technique long-term solutions together with local ties at co-location sites. The combination model involves a 7- or 14-parameter similarity transformation formula, for time series stacking and multi-technique combination, respectively. Not all these parameters are necessarily estimated in the combination process, some or all of them could be eliminated from the constructed normal equation, depending on the combination purpose. The paper discusses the relevance of the combination model and its appropriateness for the ITRF combination activities, both from the theoretical and practical point of views, and in particular for the reference frame specifications (origin, scale, orientation and their time evolutions). Selected analysis tests of ITRF2008 input data and results are used to illustrate the discussion as well as to address lessons learned from ITRF2008 experience.
Numéro de notice :	C2010-010
Affiliation des auteurs :	LAREG (1991-2011)
Thématique :	POSITIONNEMENT
Nature :	Communication
nature-HAL :	ComAvecCL&ActesPubliésIntl
DOI :	10.1007/978-3-642-32998-2_2
Date de publication en ligne :	27/11/2012
En ligne :	https://doi.org/10.1007/978-3-642-32998-2_2
Format de la ressource électronique :	URL article
Permalink :	https://documentation.ensg.eu/index.php?lvl=notice_display&id=65065

GRGS evaluation of ITRF2008, from SLR data / Florent Deleflie (2013)

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IGN

Centre de documentationscientifique

Accueil

Sélection de la langue

Adresse

Se connecter

Actualité

L'actu ! Horaires du CDOS

Informations pratiques

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IGN / ENSG

L'IGN a pour vocation

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2014 -2024 IGN

Centre de documentation
scientifique