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Sciences of geodesy, vol 2. Innovations and future developments / Guochang Xu (2013)
Titre de série : Sciences of geodesy, vol 2 Titre : Innovations and future developments Type de document : Guide/Manuel Auteurs : Guochang Xu, Éditeur scientifique Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2013 Format : 16 x 24 cm ISBN/ISSN/EAN : 978-3-642-27999-7 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie
[Termes IGN] champ de pesanteur terrestre
[Termes IGN] compensation de coordonnées
[Termes IGN] fonction de Green
[Termes IGN] géodésie spatiale
[Termes IGN] Global Positioning System
[Termes IGN] interférométrie à très grande base
[Termes IGN] International Terrestrial Reference Frame
[Termes IGN] International Terrestrial Reference System
[Termes IGN] marégraphie
[Termes IGN] photogrammétrie
[Termes IGN] relativité générale
[Termes IGN] réseau géodésique terrestre
[Termes IGN] surcharge océanique
[Termes IGN] système de référence mondial
[Termes IGN] télémétrie laser sur satelliteIndex. décimale : 30.00 Géodésie - généralités Note de contenu : 1 COMPUTATION OF GREEN'S FUNCTIONS FOR OCEAN TIDE LOADING
1 Introduction
2 Equations of Motions and Rheology
3 Spheroidal and Toroidal Motions
4 Fluid Core
5 Resonance Effects
6 Boundary Conditions
7 Simple Earth Models and Love Numbers
8 Degree-1 Response and Translational Invariance
9 Numerical Methods
10 Rheology: Viscosity and Anelasticity
11 Green's Functions
12 Final Remarks
2 GENERAL RELATIVITY AND SPACE GEODESY
1 Background
2 Satellite Laser Ranging
3 Global Positioning System
4 Very Long Baseline Interferometry
5 Concluding Remarks
3 GLOBAL TERRESTRIAL REFERENCE SYSTEMS AND THEIR REALIZATIONS
1 Introduction
2 Basic Concepts and Fundamentals
3 International Terrestrial Reference System
4 International Terrestrial Reference Frame
5 The Latest Realization, the ITRF2008
6 Discussion and Challenges for the Future
4 PHOTOGRAMMETRY
1 Introduction
2 Image Acquisition
3 Image Georeferencing
4 Image Processing
5 REGIONAL GRAVITY FIELD MODELING: THEORY AND PRACTICAL RESULTS
1 Introduction
2 Fundamentals of Physical Geodesy
3 Gravity Field Modeling
4 Practical Results
6 REGULARIZATION AND ADJUSTMENT
6-Part I: Regularized Solution to Ill-Posed Problems
1 Introduction.
2 Unstable Analysis of Least Squares Solution to Ill-Posed Observation Equation
3 Regularized Solution to Ill-Posed Observation Equations
4 Determination of the Regularization Parameter
5 Numerical Cases
6 Summary
6-Part II: Adjustment
7 Introduction
8 Least Squares Adjustment
9 Sequential Least Squares Adjustment
10 Conditional Least Squares Adjustment
11 Block-Wise Least Squares Adjustment
12 Equivalently Eliminated Observation Equation System
13 A Priori Constrained Least Squares Adjustment
14 Summary
7 VERY LONG BASELINE INTERFEROMETRY FOR GEODESY AND ASTROMETRY
1 Introduction
2 Theoretical Delays
3 Least-Squares Adjustment in VLBI
4 Results from Geodetic VLBI and the IVS
5 The Next Generation VLBI System, VLBI2010
6 Concluding RemarksNuméro de notice : 20959B Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Manuel de cours Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=62778 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20959-02B 30.00 Livre Centre de documentation Géodésie Disponible 29959-02A XUG Livre Centre de documentation Indéterminé Exclu du prêt 20959-01B DEP-ELG Livre Marne-la-Vallée Dépôt en unité Exclu du prêt Nontidal ocean loading: amplitudes and potential effects in GPS height time series / Tonie M. van Dam in Journal of geodesy, vol 86 n° 11 (November 2012)
[article]
Titre : Nontidal ocean loading: amplitudes and potential effects in GPS height time series Type de document : Article/Communication Auteurs : Tonie M. van Dam, Auteur ; Xavier Collilieux , Auteur ; Jan Wuite, Auteur ; Zuheir Altamimi , Auteur ; Jim Ray, Auteur Année de publication : 2012 Article en page(s) : pp 1043 - 1057 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] effet de charge
[Termes IGN] hauteurs de mer
[Termes IGN] masse
[Termes IGN] positionnement par GPS
[Termes IGN] série temporelle
[Termes IGN] surcharge océaniqueRésumé : (Auteur) Ocean bottom pressure (OBP) changes are caused by a redistribution of the ocean’s internal mass that are driven by atmospheric circulation, a change in the mass entering or leaving the ocean, and/or a change in the integrated atmospheric mass over the ocean areas. The only previous global analysis investigating the magnitude of OBP surface displacements used older OBP data sets (van Dam et al. in J Geophys Res 129:507–517, 1997). Since then significant improvements in meteorological forcing models used to predict OBP have been made, augmented by observations from satellite altimetry and expendable bathythermograph profiles. Using more recent OBP estimates from the Estimating the Circulation and Climate of the Ocean (ECCO) project, we reassess the amplitude of the predicted effect of OBP on the height coordinate time series from a global distribution of GPS stations. OBP-predicted loading effects display an RMS scatter in the height of between 0.2 and 3.7 mm, larger than previously reported but still much smaller (by a factor of 2) than the scatter observed due to atmospheric pressure loading. Given the improvement in GPS hardware and data analysis techniques, the OBP signal is similar to the precision of weekly GPS height coordinates. We estimate the effect of OBP on GPS height coordinate time series using the MIT reprocessed solution, mi1. When we compare the predicted OBP height time series with mi1, we find that the scatter is reduced over all stations by 0.1 mm on average with reductions as high as 0.7 mm at some stations. More importantly we are able to reduce the scatter on 65 % of the stations investigated. The annual component of the OBP signal is responsible for 80 % of the reduction in scatter on average. We find that stations located close to semi-enclosed bays or seas are affected by OBP loading to a greater extent than other stations. Numéro de notice : A2012-579 Affiliation des auteurs : LASTIG LAREG+Ext (2012-mi2018) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-012-0564-5 Date de publication en ligne : 06/05/2012 En ligne : https://doi.org/10.1007/s00190-012-0564-5 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32025
in Journal of geodesy > vol 86 n° 11 (November 2012) . - pp 1043 - 1057[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-2012111 RAB Revue Centre de documentation En réserve L003 Disponible The effect of using inconsistent ocean tidal loading models on GPS coordinate solutions / Y. Fu in Journal of geodesy, vol 86 n° 6 (June 2012)
[article]
Titre : The effect of using inconsistent ocean tidal loading models on GPS coordinate solutions Type de document : Article/Communication Auteurs : Y. Fu, Auteur ; J. Freymueller, Auteur ; Tonie M. van Dam, Auteur Année de publication : 2012 Article en page(s) : pp 409 - 421 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] coordonnées GPS
[Termes IGN] géocentre
[Termes IGN] masse de la Terre
[Termes IGN] surcharge océaniqueRésumé : (Auteur) We use up to a 6-year span of GPS data from 85 globally distributed stations to compare solutions using ocean tidal loading (OTL) corrections computed in different reference frames: center of mass of the solid Earth (CE), and center of mass of the Earth system (CM). We compare solution sets that differ only in the frame used for the OTL model computations, for three types of GPS solutions. In global solutions with all parameters including orbits estimated simultaneously, we find coordinate differences of ~0.3 mm between solutions using OTL computed in CM and OTL computed in CE. When orbits or orbits and clocks are fixed, larger biases appear if the user applies an OTL model inconsistent with that used to derive the orbit and clock products. Network solutions (orbits fixed, satellite clocks estimated) show differences smaller than 0.5 mm due to model inconsistency, but PPP solutions show distortions at the ~1.3 mm level. The much larger effect on PPP solutions indicates that satellite clock estimates are sensitive to the OTL model applied. The time series of coordinate differences shows a strong spectral peak at a period of ~14 days when inconsistent OTL models are applied and smaller peaks at ~annual and ~semi-annual periods, for both ambiguity-free and ambiguity-fixed solutions. These spurious coordinate variations disappear in solutions using consistent OTL models. Users of orbit and clock products must ensure that they use OTL coefficients computed in the same reference frame as the OTL coefficients used by the analysis centers that produced the products they use; otherwise, systematic errors will be introduced into position solutions. All modern products should use loading models computed in the CM frame, but legacy products may require loading models computed in the CE frame. Analysts and authors need to document the frame used for all loading computations in product descriptions and papers. Numéro de notice : A2012-243 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-011-0528-1 Date de publication en ligne : 23/11/2011 En ligne : https://doi.org/10.1007/s00190-011-0528-1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31689
in Journal of geodesy > vol 86 n° 6 (June 2012) . - pp 409 - 421[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-2012061 RAB Revue Centre de documentation En réserve L003 Disponible Ocean Loading in Brittany, Northwest France: Impact of the GPS Analysis Strategy / Joëlle Nicolas (2012)
Titre : Ocean Loading in Brittany, Northwest France: Impact of the GPS Analysis Strategy Type de document : Article/Communication Auteurs : Joëlle Nicolas, Auteur ; Stéphane Durand, Auteur ; Mathilde Vergnolle, Auteur ; Laurent Morel, Auteur ; Stavros A. Melachroinos, Auteur ; Marie-Noëlle Bouin , Auteur ; François Fund, Auteur Editeur : Berlin, Heidelberg, Vienne, New York, ... : Springer Année de publication : 2012 Collection : International Association of Geodesy Symposia, ISSN 0939-9585 num. 137 Conférence : IAG 2009, 7th Hotine-Marussi Symposium on Mathematical Geodesy 06/06/2009 10/06/2009 Rome Italie Proceedings Springer Importance : pp 367 - 372 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] analyse comparative
[Termes IGN] Bernese
[Termes IGN] GAMIT
[Termes IGN] GINS
[Termes IGN] GIPSY-OASIS
[Termes IGN] surcharge océaniqueRésumé : (auteur) In this contribution, we analyze the impact of different GPS processing strategies on ocean tide loading estimation. We use continuous GPS data acquired during a 4-month campaign performed in 2004 in Brittany, Northwest France. Since the expected geodynamical signal in the estimated positions is exceeding the typical GPS data analysis noise, this data set can be used to compare the results obtained with different analysis software packages. Moreover, in this specific case we need short sub-daily solutions to study short-period signals instead of classical 24 h-solutions. The GPS capability for measuring 3D ocean tide loading deformation has already been assessed, but since we are looking for the finest signal as the one induced by the shallow water constituents, it is essential to be sure that the position time series represent a geodynamical signal and are not biased by the data processing strategy used. To analyze the possible effect of the methodology used on the geodynamical results, we compare different solutions computed with different strategies (Double Differencing and Precise Point Positioning) with various GPS analysis software packages (Bernese, GAMIT, GINS, and GIPSY/OASIS). We show that the different solution consistency is at the level of 1–3 mm. We also show that the data processing strategy has a mean effect of about 10–20% of the ocean tide loading signal amplitude. Numéro de notice : C2009-001 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Communication nature-HAL : ComAvecCL&ActesPubliésIntl DOI : 10.1007/978-3-642-22078-4_55 Date de publication en ligne : 18/10/2011 En ligne : https://doi.org/10.1007/978-3-642-22078-4_55 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102737 Towards development of a consistent orbit series for TOPEX, Jason-1, and Jason-2 / Franck G. Lemoine in Advances in space research, vol 46 n° 12 (15/12/2010)
[article]
Titre : Towards development of a consistent orbit series for TOPEX, Jason-1, and Jason-2 Type de document : Article/Communication Auteurs : Franck G. Lemoine, Auteur ; Nikita P. Zelensky, Auteur ; Douglas S. Chinn, Auteur ; Marek Ziebart, Auteur ; Despina E. Pavlis, Auteur ; David D. Rowlands, Auteur ; Brian D. Beckley, Auteur ; Scott B. Luthcke, Auteur ; Pascal Willis , Auteur ; et al., Auteur Année de publication : 2010 Article en page(s) : pp 1513 - 1540 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] cohérence des données
[Termes IGN] données altimétriques
[Termes IGN] données DORIS
[Termes IGN] force de gravitation
[Termes IGN] International Terrestrial Reference Frame
[Termes IGN] Jason
[Termes IGN] niveau moyen des mers
[Termes IGN] orbitographie
[Termes IGN] série temporelle
[Termes IGN] surcharge océanique
[Termes IGN] télémétrie laser sur satellite
[Termes IGN] TOPEX-PoseidonRésumé : (Auteur) The TOPEX/Poseidon, Jason-1 and Jason-2 set of altimeter data now provide a time series of synoptic observations of the ocean that span nearly 17 years from the launch of TOPEX in 1992. The analysis of the altimeter data including the use of altimetry to monitor the global change in mean sea level requires a stable, accurate, and consistent orbit reference over the entire time span. In this paper, we describe the recomputation of a time series of orbits that rely on a consistent set of reference frames and geophysical models. The recomputed orbits adhere to the IERS 2003 standards for ocean and earth tides, use updates to the ITRF2005 reference frame for both the SLR and DORIS stations, apply GRACE-derived models for modeling of the static and time-variable gravity, implement the University College London (UCL) radiation pressure model for Jason-1, use improved troposphere modeling for the DORIS data, and apply the GOT4.7 ocean tide model for both dynamical ocean tide modeling and for ocean loading. The new TOPEX orbits have a mean SLR fit of 1.79 cm compared to 2.21 cm for the MGDR-B orbits. These new TOPEX orbits agree radially with independent SLR/crossover orbits at 0.70 cm RMS, and the orbit accuracy is estimated at 1.5–2.0 cm RMS over the entire TOPEX time series. The recomputed Jason-1 orbits agree radially with the Jason-1 GDR-C orbits at 1.08 cm RMS. The GSFC SLR/DORIS dynamic and reduced-dynamic orbits for Jason-2 agree radially with independent orbits from the CNES and JPL at 0.70–1.06 cm RMS. Applying these new orbits, and using the latest altimeter corrections for TOPEX, Jason-1, and Jason-2 from September 1992 to May 2009, we find a global rate in mean sea level of 3.0 + 0.4 mm/yr. Numéro de notice : A2010-564 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.asr.2010.05.007 Date de publication en ligne : 13/05/2010 En ligne : https://doi.org/10.1016/j.asr.2010.05.007 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30756
in Advances in space research > vol 46 n° 12 (15/12/2010) . - pp 1513 - 1540[article]Estimation des déplacements causés par la surchage océanique dans l'ouest de la France à l'aide des réseaux GPS permanents / François Fund in XYZ, n° 124 (septembre - novembre 2010)PermalinkOcean loading effects on the prediction of Antarctic glacial isostatic uplift and gravity rates / K. Simon in Journal of geodesy, vol 84 n° 5 (May 2010)PermalinkUnderstanding sea-level rise and variability / J.A. Church (2010)PermalinkObservations GPS et retards troposphériques : modélisations et application aux effets de surcharge océanique dans l’Ouest de la France / François Fund (2009)PermalinkPhysically consistent system model for the study of the Earth's rotation, surface deformation and gravity field parameters / A. Hense (2009)PermalinkAssessing the accuracy of predicted ocean tide loading displacement values / Nigel Penna in Journal of geodesy, vol 82 n° 12 (December 2008)PermalinkThe gravitational effect of ocean tide loading at high latitude coastal stations in Norway / D.I. Lysaker in Journal of geodesy, vol 82 n° 9 (September 2008)PermalinkMulti-technique monitoring of ocean tide loading in Northern France / Muriel Llubes in Comptes rendus : Géoscience, vol 340 n° 6 (June 2010)PermalinkOcean tide loading (OTL) displacements from global and local grids: comparisons to GPS estimates over the shelf of Brittany, France / Stavros A. Melachroinos in Journal of geodesy, vol 82 n° 6 (June 2008)PermalinkA comparison of GPS, VLBI and model estimates of ocean tide loading displacements / I.D. Thomas in Journal of geodesy, vol 81 n° 5 (May 2007)PermalinkDetermination of the free core nutation period from tidal gravity observations of the GGP superconducting gravimeter network / B. Ducarme in Journal of geodesy, vol 81 n° 3 (March 2007)PermalinkPositionnement géodésique à haute fréquence de réseaux GNSS terrestres et marins / Stavros A. Melachroinos (2007)PermalinkMesure de la déformation de l'écorce terrestre par géodésie spatiale [diaporama] / Jérome Verdun (2006)PermalinkWorld-wide synthetic tide parameters for gravity and vertical and horizontal displacements / K.H. Zahran in Journal of geodesy, vol 79 n° 6-7 (September - October 2005)PermalinkÉtude de la flexion continentale sous la charge océanique à partir des données RGP / Marie-Noëlle Bouin in Bulletin d'information de l'Institut géographique national, n° 73 (septembre 2002)PermalinkEinfluß von Auflasteffekten auf präzise GPS-Messungen / Rolf Dach (2000)PermalinkPermalinkPermalinkUntersuchungen zu Erddeformationsmodellen für die Auswertung von geodätischen VLBI-Messungen / Rüdiger Haas (1996)PermalinkA parametrized solid Earth tide model and ocean tide loading effects for global geodetic baseline measurements / H. Scherneck in Geophysical journal international, vol 106 n° 3 (September 1991)Permalink