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Mission design, operation and exploitation of the gravity field and steady-state ocean circulation explorer mission / R. Floberghagen in Journal of geodesy, vol 85 n° 11 (November /2011)
[article]
Titre : Mission design, operation and exploitation of the gravity field and steady-state ocean circulation explorer mission Type de document : Article/Communication Auteurs : R. Floberghagen, Auteur ; M. Fehringer, Auteur ; D. Lamarre, Auteur ; D. Muzi, Auteur ; et al., Auteur Année de publication : 2011 Article en page(s) : pp 749 - 758 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] champ de pesanteur terrestre
[Termes IGN] circulation océanique
[Termes IGN] données GOCE
[Termes IGN] géoïde terrestre
[Termes IGN] GOCE
[Termes IGN] gradient de gravitation
[Termes IGN] gradiomètre
[Termes IGN] gravimétrie spatialeRésumé : (Auteur) The European Space Agency’s Gravity field and steady-state ocean circulation explorer mission (GOCE) was launched on 17 March 2009. As the first of the Earth Explorer family of satellites within the Agency’s Living Planet Programme, it is aiming at a better understanding of the Earth system. The mission objective of GOCE is the determination of the Earth’s gravity field and geoid with high accuracy and maximum spatial resolution. The geoid, combined with the de facto mean ocean surface derived from twenty-odd years of satellite radar altimetry, yields the global dynamic ocean topography. It serves ocean circulation and ocean transport studies and sea level research. GOCE geoid heights allow the conversion of global positioning system (GPS) heights to high precision heights above sea level. Gravity anomalies and also gravity gradients from GOCE are used for gravity-to-density inversion and in particular for studies of the Earth’s lithosphere and upper mantle. GOCE is the first-ever satellite to carry a gravitational gradiometer, and in order to achieve its challenging mission objectives the satellite embarks a number of world-first technologies. In essence the spacecraft together with its sensors can be regarded as a spaceborne gravimeter. In this work, we describe the mission and the way it is operated and exploited in order to make available the best-possible measurements of the Earth gravity field. The main lessons learned from the first 19 months in orbit are also provided, in as far as they affect the quality of the science data products and therefore are of specific interest for GOCE data users. Numéro de notice : A2011-467 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-011-0498-3 Date de publication en ligne : 18/10/2011 En ligne : https://doi.org/10.1007/s00190-011-0498-3 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31361
in Journal of geodesy > vol 85 n° 11 (November /2011) . - pp 749 - 758[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-2011111 RAB Revue Centre de documentation En réserve L003 Disponible Validation of GOCE gravity field models by means of orbit residuals and geoid comparisons / Thomas Gruber in Journal of geodesy, vol 85 n° 11 (November /2011)
[article]
Titre : Validation of GOCE gravity field models by means of orbit residuals and geoid comparisons Type de document : Article/Communication Auteurs : Thomas Gruber, Auteur ; P. Visser, Auteur ; C. Ackermann, Auteur ; M. Hosse, Auteur Année de publication : 2011 Article en page(s) : pp 845 - 860 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] analyse comparative
[Termes IGN] analyse de variance
[Termes IGN] champ de pesanteur terrestre
[Termes IGN] données GOCE
[Termes IGN] données GRACE
[Termes IGN] géoïde gravimétrique
[Termes IGN] géoïde terrestre
[Termes IGN] harmonique sphérique
[Termes IGN] limite de résolution géométrique
[Termes IGN] orbitographie
[Termes IGN] résiduRésumé : (Auteur) Three GOCE-based gravity field solutions have been computed by ESA’s high-level processing facility and were released to the user community. All models are accompanied by variance-covariance information resulting either from the least squares procedure or a Monte-Carlo approach. In order to obtain independent external quality parameters and to assess the current performance of these models, a set of independent tests based on satellite orbit determination and geoid comparisons is applied. Both test methods can be regarded as complementary because they either investigate the performance in the long wavelength spectral domain (orbit determination) or in the spatial domain (geoid comparisons). The test procedure was applied to the three GOCE gravity field solutions and to a number of selected pre-launch models for comparison. Orbit determination results suggest, that a pure GOCE gravity field model does not outperform the multi-year GRACE gravity field solutions. This was expected as GOCE is designed to improve the determination of the medium to high frequencies of the Earth gravity field (in the range of degree and order 50 to 200). Nevertheless, in case of an optimal combination of GOCE and GRACE data, orbit determination results should not deteriorate. So this validation procedure can also be used for testing the optimality of the approach adopted for producing combined GOCE and GRACE models. Results from geoid comparisons indicate that with the 2 months of GOCE data a significant improvement in the determination of the spherical harmonic spectrum of the global gravity field between degree 50 and 200 can be reached. Even though the ultimate mission goal has not yet been reached, especially due to the limited time span of used GOCE data (only 2 months), it was found that existing satellite-only gravity field models, which are based on 7 years of GRACE data, can already be enhanced in terms of spatial resolution. It is expected that with the accumulation of more GOCE data the gravity field model resolution and quality can be further enhanced, and the GOCE mission goal of 1–2 cm geoid accuracy with 100 km spatial resolution can be achieved. Numéro de notice : A2011-470 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-011-0486-7 Date de publication en ligne : 08/06/2011 En ligne : https://doi.org/10.1007/s00190-011-0486-7 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31364
in Journal of geodesy > vol 85 n° 11 (November /2011) . - pp 845 - 860[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-2011111 RAB Revue Centre de documentation En réserve L003 Disponible Rapid-damage assessment and situation mapping : learning from the 2010 Haïti earthquake / S. Voigt in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 9 (September 2011)
[article]
Titre : Rapid-damage assessment and situation mapping : learning from the 2010 Haïti earthquake Type de document : Article/Communication Auteurs : S. Voigt, Auteur ; T. Schneiderhan, Auteur ; et al., Auteur Année de publication : 2011 Article en page(s) : pp 923 - 931 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] carte étrangère
[Termes IGN] carte thématique
[Termes IGN] cohérence des données
[Termes IGN] Copernicus (programme européen)
[Termes IGN] dommage matériel
[Termes IGN] données multisources
[Termes IGN] Haïti
[Termes IGN] organisation du travail
[Termes IGN] Port-au-Prince
[Termes IGN] risque naturel
[Termes IGN] séisme
[Termes IGN] spatiocarteRésumé : (Auteur) The paper reports on the activity of the Center for Satellite based Crisis Information (ZKI) of the German Aerospace Center (dim) in the aftermath of the devastating earthquake in Port-au-Prince, Haiti on 12 January 2010. DLR/ZKI closely coordinated with the European Global Monitoring for Environment and Security (GMES) program and the International Charter Space and Major Disasters, AH dlh/zki damage maps are based on a specific analysis approach, including preprocessing procedures and visual interpretation on a grid-basis. As the satellite-based mapping response globally was so extensive for this event, problems resulting from the large number and inconsistency of satellite maps generated internationally are addressed. In order to avoid this kind of "mapping challenge" in future the setting-up of an international working group to elaborate global guidelines and cooperation procedures for better coherence of international satellite rapid mapping efforts for extreme events such as the Haiti earthquake is suggested. Numéro de notice : A2011-381 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.77.9.923 En ligne : https://doi.org/10.14358/PERS.77.9.923 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31160
in Photogrammetric Engineering & Remote Sensing, PERS > vol 77 n° 9 (September 2011) . - pp 923 - 931[article]The right attitude: Experimenting with GPS on board high-altitude balloons / P. Buist in GPS world, vol 22 n° 9 (September 2011)
[article]
Titre : The right attitude: Experimenting with GPS on board high-altitude balloons Type de document : Article/Communication Auteurs : P. Buist, Auteur ; T. Hashimoto, Auteur ; et al., Auteur Année de publication : 2011 Article en page(s) : pp 57 - 66 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] aérostat
[Termes IGN] analyse comparative
[Termes IGN] charge utile
[Termes IGN] mesurage de pseudo-distance
[Termes IGN] onde porteuse
[Termes IGN] orientation du capteur
[Termes IGN] positionnement par GPS
[Termes IGN] stratosphèreRésumé : (Editeur) [...] In this month’s column, we look at how a team of Dutch and Japanese researchers is using GPS to determine the attitude of a payload launched from a high-altitude balloon. Numéro de notice : A2011-360 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31139
in GPS world > vol 22 n° 9 (September 2011) . - pp 57 - 66[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 067-2011091 RAB Revue Centre de documentation En réserve L003 Disponible An evaluation of solar radiation pressure strategies for the GPS constellation / Ant Sibthorpe in Journal of geodesy, vol 85 n° 8 (August 2011)
[article]
Titre : An evaluation of solar radiation pressure strategies for the GPS constellation Type de document : Article/Communication Auteurs : Ant Sibthorpe, Auteur ; Willy I. Bertiger, Auteur ; Shailen Desai, Auteur ; et al., Auteur Année de publication : 2011 Article en page(s) : pp 505 - 517 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Techniques orbitales
[Termes IGN] analyse comparative
[Termes IGN] constellation GPS
[Termes IGN] données TLS (télémétrie)
[Termes IGN] GIPSY-OASIS
[Termes IGN] international GPS service for geodynamics
[Termes IGN] orbitographie
[Termes IGN] rayonnement solaire
[Termes IGN] résolution d'ambiguïtéRésumé : (Auteur) The subtle effects of different Global Positioning System (GPS) satellite force models are becoming apparent now that mature processing strategies are reaching new levels of accuracy and precision. For this paper, we tested several approaches to solar radiation pressure (SRP) modeling that are commonly used by International GNSS Service (IGS) analysis centers. These include the GPS Solar Pressure Model (GSPM; Bar-Sever and Kuang in The Interplanetary Network Progress Report 42-160, 2005) and variants of the so-called DYB model (Springer et al. in Adv Space Res 23:673–676, 1999). Our results show that currently observed differences between GPS orbit solutions from the various IGS analysis centers are in large part explained by differences between their respective approaches to modeling SRP. DYB-based strategies typically generate orbit solutions that have the smallest differences with respect to the IGS final combined solution, largely because the DYB approach is most commonly used by the contributing analysis centers. However, various internal and external metrics, including ambiguity resolution statistics and satellite laser ranging observations, support continued use of the GSPM-based approach for precise orbit determination of the GPS constellation, at least when using the GIPSY-OASIS software. Numéro de notice : A2011-358 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-011-0450-6 Date de publication en ligne : 19/02/2011 En ligne : https://doi.org/10.1007/s00190-011-0450-6 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31137
in Journal of geodesy > vol 85 n° 8 (August 2011) . - pp 505 - 517[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 266-2011081 RAB Revue Centre de documentation En réserve L003 Disponible Absolute calibration of Jason radar altimeters from GPS kinematic campaigns over Lake Issykul / J.F. Cretaux in Marine geodesy, vol 34 n° 3-4 (July - december 2011)PermalinkHigh-resolution atmospheric angular momentum functions related to Earth rotation parameters during CONT08 / Daniel Gambis in Journal of geodesy, vol 85 n° 7 (July 2011)Permalinkvol 34 n° 3-4 - July - december 2011 - Special issue on OSTM/Jason-2. Calibration/validation- part2 (Bulletin de Marine geodesy) / G. BornPermalinkThe Harvest experiment LIDAR system : Water level measurement device comparison for Jason-1 and Jason-2/OSTM calibration / S. Washburn in Marine geodesy, vol 34 n° 3-4 (July - december 2011)PermalinkDevelopment of a web-based geographic information system for planetary geological mission planning and analysis / Maxime Phaneuf in Geomatica, vol 65 n° 2 (June 2011)PermalinkGeoreferencing performance of THEOS satellite imagery / S. Liu in Photogrammetric record, vol 26 n° 134 (June - August 2011)PermalinkGRACE-derived surface water mass anomalies by energy integral approach: application to continental hydrology / Guillaume Ramillien in Journal of geodesy, vol 85 n° 6 (June 2011)PermalinkPrecise orbit determination of GIOVE-B based on the CONGO network / P. Steinberger in Journal of geodesy, vol 85 n° 6 (June 2011)PermalinkA new stereo algorithm based on snakes / E. Simioni in Photogrammetric Engineering & Remote Sensing, PERS, vol 77 n° 5 (May 2011)PermalinkL'observation en très haute résolution / Laurent Polidori in Géomètre, n° 2080 (avril 2011)PermalinkRésultats récents du centre français GRGS d'analyse de données de télémétrie laser sur satellites / Florent Deleflie in Bulletin d'information scientifique et technique de l'IGN, n° 77 (avril 2011)PermalinkLa théorie cinétique des gaz et la géodésie / Etienne Bernard in Bulletin d'information scientifique et technique de l'IGN, n° 77 (avril 2011)PermalinkLa 3ème journée de l'imagerie géospatiale / Anonyme in Géomatique expert, n° 79 (01/03/2011)PermalinkGGSP : Realisation and maintenance of the Galileo terrestrial reference frame / Gerd Gendt in Advances in space research, vol 47 n° 2 ([15/01/2011])PermalinkObservation de la Terre par télédétection, 1. Fondements physiques, méthodologiques et technologiques, volume 1 / François Becker (2011)PermalinkL'occupation du sol fait ses preuves en région / Françoise de Blomac in SIG la lettre, n° 123 (janvier 2011)PermalinkSatellites / Michel Capderou (2011)PermalinkDORIS/Jason-2: Better than 10 cm on-board orbits available for near-real-time altimetry / Christian Jayles in Advances in space research, vol 46 n° 12 (15/12/2010)PermalinkDORIS/SLR POD modeling improvements for Jason-1 and Jason-2 / Nikita P. Zelensky in Advances in space research, vol 46 n° 12 (15/12/2010)PermalinkPermalink