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Around, up, over and back again...: WorldView agility completes the picture / P. Richardson in Geoinformatics, vol 15 n° 4 (01/06/2012)
[article]
Titre : Around, up, over and back again...: WorldView agility completes the picture Type de document : Article/Communication Auteurs : P. Richardson, Auteur ; S. Casey, Auteur ; Pablo d' Angelo, Auteur ; A. Kornhoff, Auteur Année de publication : 2012 Article en page(s) : pp 28 - 29 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] acquisition d'images
[Termes IGN] image à très haute résolution
[Termes IGN] image Worldview
[Termes IGN] satellite agileRésumé : (Auteur) Very high-resolution (VHR) satellites, like all technologies, have seen huge technical improvements over the past 10 years and, with the ever increasing number of satellites in orbit, the important question of - "which satellite should use?" - is at the forefront of users' minds. Numéro de notice : A2012-229 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31675
in Geoinformatics > vol 15 n° 4 (01/06/2012) . - pp 28 - 29[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 262-2012041 SL Revue Centre de documentation Revues en salle Disponible Coming Soon: the international GNSS real-time service / M. Caissy in GPS world, vol 23 n° 6 (June 2012)
[article]
Titre : Coming Soon: the international GNSS real-time service Type de document : Article/Communication Auteurs : M. Caissy, Auteur ; Loukis Agrotis, Auteur ; G. Weber, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 52 - 52 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] données GLONASS
[Termes IGN] données GPS
[Termes IGN] International GNSS Service
[Termes IGN] orbitographie
[Termes IGN] temps réelRésumé : (Auteur) The International GNSS Service has embarked on a project to provide a high-accuracy GPS satellite orbit and clock data service in real time. The service will also provide 1-Hz data streams of GPS and GLONASS data from a network of global continuously operating reference stations. The IGS real-time data and orbit and clock products will be of immense benefit for geoscience studies and a host of other science and engineering applications. A team of authors associated with this project discusses the genesis and status of the real-time service and the plans to provide an initial operating capability. Numéro de notice : A2012-284 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31730
in GPS world > vol 23 n° 6 (June 2012) . - pp 52 - 52[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 067-2012061 RAB Revue Centre de documentation En réserve L003 Disponible ESA's Soil Moisture and Ocean Salinity mission : mission performance and operations / S. Mecklenburg in IEEE Transactions on geoscience and remote sensing, vol 50 n° 5 Tome 1 (May 2012)
[article]
Titre : ESA's Soil Moisture and Ocean Salinity mission : mission performance and operations Type de document : Article/Communication Auteurs : S. Mecklenburg, Auteur ; M. Drusch, Auteur ; Yann H. Kerr, Auteur ; J. Font, Auteur ; et al., Auteur Année de publication : 2012 Article en page(s) : pp 1354 - 1366 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] image SMOS
[Termes IGN] interférence
[Termes IGN] mission spatiale
[Termes IGN] performance
[Termes IGN] SMOS
[Termes IGN] température de luminanceRésumé : (Auteur) The European Space Agency's Soil Moisture and Ocean Salinity (SMOS) mission was launched on the 2nd of November 2009. The first six months after launch, the so-called commissioning phase, were dedicated to test the functionalities of the spacecraft, the instrument, and the ground segment including the data processors. This phase was successfully completed in May 2010, and SMOS has since been in the routine operations phase and providing data products to the science community for over a year. The performance of the instrument has been within specifications. A parallel processing chain has been providing brightness temperatures in near-real time to operational centers, e.g., the European Centre for Medium-Range Weather Forecasts. Data quality has been within specifications; however, radio-frequency interference (RFI) has been detected over large parts of Europe, China, Southern Asia, and the Middle East. Detecting and flagging contaminated observations remains a challenge as well as contacting national authorities to localize and eliminate RFI sources emitting in the protected band. The generation of Level 2 soil moisture and ocean salinity data is an ongoing activity with continuously improved processors. This article will summarize the mission status after one year of operations and present selected first results. Numéro de notice : A2012-205 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2012.2187666 Date de publication en ligne : 03/04/2012 En ligne : https://doi.org/10.1109/TGRS.2012.2187666 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31652
in IEEE Transactions on geoscience and remote sensing > vol 50 n° 5 Tome 1 (May 2012) . - pp 1354 - 1366[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 065-2012051A RAB Revue Centre de documentation En réserve L003 Disponible Impact of Earth radiation pressure on GPS position estimates / C. Rodriguez-Solano in Journal of geodesy, vol 86 n° 5 (May 2012)
[article]
Titre : Impact of Earth radiation pressure on GPS position estimates Type de document : Article/Communication Auteurs : C. Rodriguez-Solano, Auteur ; Urs Hugentobler, Auteur ; Peter Steigenberger, Auteur ; Simon Lutz, Auteur Année de publication : 2012 Article en page(s) : pp 309 - 317 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] bilan radiatif
[Termes IGN] orbitographie
[Termes IGN] positionnement par GPS
[Termes IGN] précision du positionnement
[Termes IGN] rayonnement terrestre
[Termes IGN] signal GPSRésumé : (Auteur) GPS satellite orbits available from the International GNSS Service (IGS) show a consistent radial bias of up to several cm and a particular pattern in the Satellite Laser Ranging (SLR) residuals, which are suggested to be related to radiation pressure mismodeling. In addition, orbit-related frequencies were identified in geodetic time series such as apparent geocenter motion and station displacements derived from GPS tracking data. A potential solution to these discrepancies is the inclusion of Earth radiation pressure (visible and infrared) modeling in the orbit determination process. This is currently not yet considered by all analysis centers contributing to the IGS final orbits. The acceleration, accounting for Earth radiation and satellite models, is introduced in this paper in the computation of a global GPS network (around 200 IGS sites) adopting the analysis strategies from the Center for Orbit Determination in Europe (CODE). Two solutions covering 9 years (2000–2008) with and without Earth radiation pressure were computed and form the basis for this study. In previous studies, it has been shown that Earth radiation pressure has a non-negligible effect on the GPS orbits, mainly in the radial component. In this paper, the effect on the along-track and cross-track components is studied in more detail. Also in this paper, it is shown that Earth radiation pressure leads to a change in the estimates of GPS ground station positions, which is systematic over large regions of the Earth. This observed “deformation” of the Earth is towards North–South and with large scale patterns that repeat six times per GPS draconitic year (350 days), reaching a magnitude of up to 1 mm. The impact of Earth radiation pressure on the geocenter and length of day estimates was also investigated, but the effect is found to be less significant as compared to the orbits and position. Numéro de notice : A2012-240 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-011-0517-4 Date de publication en ligne : 13/10/2011 En ligne : https://doi.org/10.1007/s00190-011-0517-4 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31686
in Journal of geodesy > vol 86 n° 5 (May 2012) . - pp 309 - 317[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 266-2012051 RAB Revue Centre de documentation En réserve L003 Disponible vol 50 n° 5 Tome 1 - May 2012 - Part 1 of 2 parts (Bulletin de IEEE Transactions on geoscience and remote sensing) / Geoscience and remote sensing society
[n° ou bulletin]
est un bulletin de IEEE Transactions on geoscience and remote sensing / IEEE Geoscience and remote sensing society (Etats-Unis) (1986 -)
Titre : vol 50 n° 5 Tome 1 - May 2012 - Part 1 of 2 parts Type de document : Périodique Auteurs : Geoscience and remote sensing society, Auteur Année de publication : 2012 Importance : 364 p. Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Télédétection
[Termes IGN] Soil Moisture and Ocean Salinity MissionNuméro de notice : 065-201205A Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Numéro de périodique En ligne : http://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=6186863&punumber=36 Format de la ressource électronique : URL sommaire Permalink : https://documentation.ensg.eu/index.php?lvl=bulletin_display&id=13597 [n° ou bulletin]Contient
- ESA's Soil Moisture and Ocean Salinity mission : mission performance and operations / S. Mecklenburg in IEEE Transactions on geoscience and remote sensing, vol 50 n° 5 Tome 1 (May 2012)
- Radiometric performance of the SMOS reference radiometers-assessment after one year of operation / J. Kainulainen in IEEE Transactions on geoscience and remote sensing, vol 50 n° 5 Tome 1 (May 2012)
- A first set of techniques to detect radio frequency interferences and mitigate their impact on SMOS data / R. Castro in IEEE Transactions on geoscience and remote sensing, vol 50 n° 5 Tome 1 (May 2012)
- Evaluation of SMOS soil moisture products over continental U.S. using the SCAN/SNOTEL network / A. Al Bitar in IEEE Transactions on geoscience and remote sensing, vol 50 n° 5 Tome 1 (May 2012)
- Validation of the SMOS L2 soil moisture data in the REMEDHUS network (Spain) / N. Sanchez in IEEE Transactions on geoscience and remote sensing, vol 50 n° 5 Tome 1 (May 2012)
- Overview of the first SMOS sea surface salinity products. Part 1: quality assessment for the second half of 2010 / N. Reul in IEEE Transactions on geoscience and remote sensing, vol 50 n° 5 Tome 1 (May 2012)
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Code-barres Cote Support Localisation Section Disponibilité 065-2012051A RAB Revue Centre de documentation En réserve L003 Disponible L'image spatiale au niveau de la photo aérienne [Pléiades] / Laurent Polidori in Géomètre, n° 2091 (avril 2012)Permalinkvol 59 n°1-2 - March - June 2012 - Special issue on the Optical Inter-orbit Communications Engineering Test Satellite (OICETS) development and in-orbit experiments (Bulletin de Journal of NICT [National Institute of Information and Communications Technology]) / Ministry of posts and telecommunicationsPermalinkUne pléiade de bons arguments / Françoise de Blomac in SIG la lettre, n° 134 (février 2012)PermalinkAbleitung von Bewegungsstrategien zur automatisierten, vollständigen Vermessung von Innerraumszenen auf autonom navigierender Plattform / Alexander Fietz (2012)PermalinkPermalinkDepuis 1995, DORIS contribue au Repère International de Référence Terrestre / Olivier Jamet (2012)PermalinkEstimating horizontal tropospheric gradients in DORIS data processing: preliminary results / Pascal Willis (2012)PermalinkPermalinkGalileo, un système global de positionnement par satellites / Jonathan Chenal (2012)PermalinkGeOxygene, une plate-forme interopérable pour le développement d'applications géographiques / Eric Grosso (2012)Permalink