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Titre : Notions géodésiques nécessaires au positionnement géographique Type de document : Monographie Auteurs : François Bourassin, Auteur Editeur : Paris : Institut Géographique National - IGN (1940-2007) Année de publication : 1996 Collection : Publications techniques en géodésie Sous-collection : Notes techniques num. 27860 Importance : 30 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] positionnement par GPS
[Termes IGN] projection
[Termes IGN] réseau géodésique
[Termes IGN] système de référence géodésique
[Termes IGN] transformation de coordonnéesIndex. décimale : 30.10 Systèmes de référence et réseaux géodésiques Numéro de notice : 65780 Affiliation des auteurs : IGN (1940-2011) Thématique : POSITIONNEMENT Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=53342 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 65780-01 30.10 Livre Centre de documentation Géodésie Disponible 65780-02 30.10 Livre Centre de documentation Géodésie Disponible 65780-03 7D Livre SGM K001 Exclu du prêt Recent crustal deformation and strain accumulation in the Marmara sea region, NW Anatolia, inferred from GPS measurements / Christian Straub (1996)
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Titre : Recent crustal deformation and strain accumulation in the Marmara sea region, NW Anatolia, inferred from GPS measurements Type de document : Thèse/HDR Auteurs : Christian Straub, Auteur Editeur : Zurich : Institut für Geodäsie und Photogrammetrie IGP - ETH Année de publication : 1996 Collection : IGP Mitteilungen, ISSN 0252-9335 num. 058 Importance : 150 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-906513-82-9 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] analyse comparative
[Termes IGN] campagne GPS
[Termes IGN] déformation de la croute terrestre
[Termes IGN] données GPS
[Termes IGN] Marmara, mer de
[Termes IGN] positionnement par GPS
[Termes IGN] risque naturel
[Termes IGN] séismeIndex. décimale : 30.82 Applications géophysiques de géodésie spatiale Résumé : (auteur) This work analyzes recent crustal deformation in the Marmara Sea region, NW Anatolia, based on data derived from repeated GPS measurements. It is the geodetic part of the MARMARA poly-project of the Swiss Federal Institute of Technology (ETHZ). The overall goal of the Marmara poly-project is to examine the active tectonics and their interaction with groundwater circulation, heat flow and seismicity in northwestern Anatolia. In 1990, the Geodesy and Geodynamics Lab. (GGL) of the ETHZ established 52 GPS sites at the western end of the single strand North Anatolian Fault Zone (NAFZ) and its splaying into a complex fault system. This complexity is caused by the transition from the east-west oriented motion of the Anatolian block to the extensional regime of the Aegean Sea directing north-south. The GPS sites were occupied during three major GPS campaigns in 1990, 1992, and 1994. The GPS data were analyzed using the Bernese GPS Software. As a result of the combination of these campaigns a detailed velocity field of the transition zone between the westward motion of Anatolia and the extending Aegean Sea was obtained. The average rate of motion of Anatolia relative to Eurasia is 20 mm/a in a W direction. West of longitude 27.5°, the average direction of motion turns from W to WSW. From north to south, a gradual rate increase from 0 to 20 mm/a was found. Comparisons with deformation rates derived from the summation of seismic moment tensors suggest that less than 60% of the GPS inferred rates are released by earthquakes. The deformation rates are evaluated by means of strain and stress analysis, by using the method of collocation, examination of residuals relative to rigid Eulerian rotations, as well as a Finite Element model of the Marmara Sea region. Most deformation occurs along the northern strand of the NAFZ that runs from Mudurnu through the Gulf of izmit, passing the Marmara Sea, re-enters the Eurasian mainland and continuing to the Gulf of Saros. The Yalova peninsula endures considerable deformation as well. No significant deformation was found on the Biga peninsula. Thus, the western part of the middle strand that crosses the Biga peninsula is either inactive or locked. The Gulf of Edremit and the areas south of it are occupied by extensional processes in NNE-SSW direction (max. extension: 0.3 ppm/a [= u.strain/a]). The average shear-strain rate in the Marmara Sea region is 0.1 ppm/a (maximum shear: 0.3 ppm/a). The highest annual accumulation of density of strain energy (4 mJ/m3) and maximum shear stress (16 kN/m2) is located along the northern strand. The projection of the strain on the main fault allows us to determine the kind and amount of faulting that can be expected at individual fault lines. The dextral strike along the northern strand reaches 0.1-0.3 ppm/a. The results obtained from repeated GPS measurements compare well with the pattern of horizontal direction of major extension derived from seismotectonic and neotectonic data. In the East, the major horizontal extension directs NE-SW. Further to the west it gradually changes to almost N-S. Comparisons with rigid pole rotations for the Eastern Mediterranean, postulated by other authors, show that the Marmara region cannot be regarded as part of a rigid Anatolian block. The analysis of residuals to a rigid pole rotation of the Anatolian sites of the MARMARA GPS network (33.9°N, 29.8°E, CD=1.36°/Ma) depicts the location and size of the area of the main deformation. Cross-sectors radial to the best fitting pole reveal a detailed pattern of increase of deformation rates over the different fault lines. The deformation zones in the eastern and western part is narrow (=45 km). The zone for the middle sector undergoes a more distributed deformation (up to 100 km). The investigation of the radial residuals illustrates the overall extension of the Marmara region directing NE-SW. Finite Element calculations (2D, elasto-static) confirm the findings of the strain and stress analysis. Furthermore, they suggest that the known neotectonic fault geometry is capable of absorbing a considerable accumulation of distortion. However, the Finite Element model also gives indications for additional fault structures at the western end of the Marmara Sea and in Thrace, north and south of the northern strand striking subparallel to it. Finally, the strain field of the Eastern Mediterranean region is derived from GPS measurements spanning the whole region. The deformation pattern confirm the strong dextral motion along the NAFZ (0.2 ppm/a) as well as the extensional regimes of Western Anatolia and the Aegean Sea. Residuals from a rotation for the Eastern Mediterranean reveal that the Anatolian/Aegean region does not behave like a single rigid plate. The rates along the NAFZ show that there is a zone with a width of up to 100 km that endures strong internal deformation. The southern Aegean, Western, and Southwestern Greece do not fit to a simple rigid polar rotation at all. Numéro de notice : 68913 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère DOI : 10.3929/ethz-a-001624667 En ligne : http://dx.doi.org/10.3929/ethz-a-001624667 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=64059 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 68913-01 30.82 Livre Centre de documentation Géodésie Disponible Le Réseau de Référence Français (RRF), interface du réseau européen EUREF et du réseau géodésique français (RGF) / Claude Boucher (1996)
Titre : Le Réseau de Référence Français (RRF), interface du réseau européen EUREF et du réseau géodésique français (RGF) Type de document : Monographie Auteurs : Claude Boucher , Auteur ; Serge Botton
, Auteur ; Laurent Duhem, Auteur
Editeur : Paris : Institut Géographique National - IGN (1940-2007) Année de publication : 1996 Collection : Publications du LAREG Sous-collection : Memorandum Importance : 27 p. Format : 21 x 30 cm Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux
[Termes IGN] EUREF
[Termes IGN] positionnement par GPS
[Termes IGN] réseau de référence français
[Termes IGN] Réseau Géodésique Français
[Termes IGN] réseau géodésique local
[Termes IGN] système de référence géodésiqueIndex. décimale : 30.10 Systèmes de référence et réseaux géodésiques Numéro de notice : 64394 Affiliation des auteurs : IGN+Ext (2012-2019) Thématique : POSITIONNEMENT Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=53231 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 64394-01 30.10 Livre Centre de documentation Géodésie Disponible 64394-02 30.10 Livre Centre de documentation Géodésie Disponible
Titre : Satellite geodesy and geodynamics : current deformation along the West Hellenic arc Type de document : Thèse/HDR Auteurs : Max Vinzenz Muller, Auteur Editeur : Zurich : Institut für Geodäsie und Photogrammetrie IGP - ETH Année de publication : 1996 Collection : IGP Mitteilungen, ISSN 0252-9335 num. 057 Importance : 126 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-906513-80-5 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] déformation de la croute terrestre
[Termes IGN] données GPS
[Termes IGN] géophysique interne
[Termes IGN] Grèce
[Termes IGN] Méditerranée, mer
[Termes IGN] modèle géologique
[Termes IGN] positionnement par GPS
[Termes IGN] risque naturel
[Termes IGN] séismeIndex. décimale : 30.82 Applications géophysiques de géodésie spatiale Résumé : (Auteur) The geodynamic processes in the Mediterranean area are reflected in the recent crustal movements determined by satellite geodesy. There is a counterclockwise rotation of Africa relative to Eurasia, with complex deformation in between. A key feature to a better understanding of the driving forces and associated seismic activity in the Africa/Eurasia collision zone is the Hellenic Arc. This thesis reports on repeated GPS measurements, that began in 1989, along the western coast of Greece (including some stations in southern Italy). The results are presented in terms of relative displacements and strain rates. They reveal distinct crustal motion of the central Ionian Islands and SW Greece: Over a time span of five years various parts of Greece have moved to the SW at a rate of -40 mm/a relative to SE Italy and Epiros. The trajectories constructed from the repeated observations show that the boundary zone, against the sites of no significant motion relative to South Italy, coincides with the Kephalonia fault zone (KFZ) where a maximum of strain energy density was also found. The maximum strain rate is 0.18 µstrain/a, located in the vicinity of Lefkada. where anomalously high earthquake activity is observed. This intense deformation accounts for the earthquakes that have frequently devastated the Central Ionian Islands. The deformation field of the KFZ is interpreted as a transition zone between the kinematics of the Eurasian and the Aegean/Anatolian plates (Hellenic fold and thrust belts). Seismic risk assessment is one important application of geodetically-determined strain rates. This thesis also includes an approach for approximating the observed displacement field by the use of a tectonic model for the area of investigation. Numéro de notice : 56231 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Thèse étrangère DOI : 10.3929/ethz-a-001584904 En ligne : http://dx.doi.org/10.3929/ethz-a-001584904 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=59994 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 56231-01 30.82 Livre Centre de documentation Géodésie Disponible 56231-02 30.82 Livre Centre de documentation Géodésie Disponible A study of GPS and other navigation systems for high precision navigation and attitude determinations / W.X. Fu (1996)
Titre : A study of GPS and other navigation systems for high precision navigation and attitude determinations Type de document : Monographie Auteurs : W.X. Fu, Auteur Editeur : Kensington [Australie] : University of New South Wales Année de publication : 1996 Collection : Unisurv Report num. S-45 Importance : 332 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-0-85839-069-0 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] filtre de Kalman
[Termes IGN] filtre passe-bas
[Termes IGN] GPS-INS
[Termes IGN] méthode des moindres carrés
[Termes IGN] orientation
[Termes IGN] positionnement par géodésie spatiale
[Termes IGN] positionnement par GNSS
[Termes IGN] système de coordonnées
[Termes IGN] système de positionnement par satellitesIndex. décimale : 30.60 Géodésie spatiale Résumé : (Auteur) Since 1960's the navigation techniques have experienced a revolutionary advance, which due to the advent of some new kinds of navigation systems, such as inertial navigation system and satellite navigation system, under the background of rapid development of computer technologies, optimal estimation and modern control theory. All navigation information can now be used jointly and optimally, and the integrated navigation system has become standard navigation tool.
This research involved the analysis and investigation of navigation systems (mainly the GPS and integrated navigation systems) and navigation computation for high precision navigation and attitude determination, especially for marine application. The emphasis of the research was to find new methods and concepts to deal with the traditional navigation problems.
The navigation models were analyzed in both time and frequency domains and the model's stability; controllability and observability with GPS observables were introduced in order to facilitate the navigation filter design.
New kind of filters, such as frequency-discriminating filters and separated-bias Kaiman filter, were introduced to navigation data processing, and these filters are useful for GPS data smoothing, cycle slip detection and repair and ambiguity resolution in both static and kinematic modes.
Based on the navigation system and equipment operation and error analysis, a closed-loop dead reckoning integration with other navigation systems (GPS, Omega, Loran-C and radar) was proposed in order to obtain a good system frequency response and facilitate the body's manoeuvre detection and system quality control.
To use GPS potential efficiently, a new GPS observable "Doppler created phase" was introduced and associate algorithms were developed. This new observable can be used in both static and kinematic positioning (if the data rate is high enough) using low-cost navigation receivers (output C/A code and Doppler only), and theoretically an accuracy of equivalent to a phase-floatingambiguity solution can be expected.
Extensive analysis was given to the attitude determination using GPS, and its limits, potential and alternative implementation are also presented.
The software development and data processing validated the proposed theory and algorithms. The results and statistic tests were illustrated by the different kind of plots including the correlograms and periodograms.Numéro de notice : 63989 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=61247 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 63989-01 30.60 Livre Centre de documentation Géodésie Disponible PermalinkPermalinkUntersuchungen zu hochpräzisen kinematischen DGPS-Echtzeitverfahren mit besonderer Berücksichtigung atmosphärischer Fehlereinflüsse / H. Blomenhofer (1996)
PermalinkPermalinkBeiträge zur gemeinsamen Ausgleichung von terrestrischen Lagenetzen und GPS-Verdichtungsnetzen für das Gebiet der neuen Bundesländer / G. Reichardt (1995)
PermalinkCompte-rendu de réunion du groupe de travail permanent du CNIG "Positionnement statique et dynamique", Saint-Mandé, 27 novembre 1995 / Pascal Willis (1995)
PermalinkCompte-rendu de réunion du groupe de travail permanent du CNIG "Positionnement statique et dynamique", Saint-Mandé, 8 février 1995 / Pascal Willis (1995)
PermalinkPermalinkPermalinkErweiterte Modellbildung zur Netzausgleichung für die Deformationsanalyse, dargestellt am Beispiel der Geo- traverse Venezolanische Anden / H. Saler (1995)
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