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The Cryosat data products: their generation, in-situ validation and applications / R. Francis in ESA bulletin, n° 122 (May 2005)  

Public [article]  inESA bulletin > n° 122 (May 2005) . - pp 29 - 35 Titre : The Cryosat data products: their generation, in-situ validation and applications Type de document : Article/Communication Auteurs : R. Francis, Auteur ; et al., Auteur Année de publication : 2005 Article en page(s) : pp 29 - 35 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] image Cryosat [Termes IGN] secteur terrien [Termes IGN] système spatial [Termes IGN] utilisateur [Termes IGN] validité des données Résumé : (Auteur) The preceding articles [A05275 and A05276] have described how the CryoSat mission came about, how it was designed, and how the satellite was put together. Little has been yet said about how we will plan the operations, or about the data that will flow to the scientific community. This last article therfore describes those parts of the overal system that will not be launched into space. They include the control and processing centres, as well as less material things like the operations concept and the approach to validation. CryoSat was conceived with clear ideas about the scientific potential of the measurments it would produce. Now shortly before launch, we have accepted 80 proposals from scientific groups who want to exploit this potential, and this article concludes with some examples. Numéro de notice : A2005-277 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans En ligne : http://www.esa.int/esapub/bulletin/bulletin122/bul122d_francis.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27413 [article]

The Cryosat system: the satellite and its altimeter / G. Ratier in ESA bulletin, n° 122 (May 2005)  

Public [article]  inESA bulletin > n° 122 (May 2005) . - pp 19 - 26 Titre : The Cryosat system: the satellite and its altimeter Type de document : Article/Communication Auteurs : G. Ratier, Auteur ; R. Francis, Auteur ; et al., Auteur Année de publication : 2005 Article en page(s) : pp 19 - 26 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Technologies spatiales [Termes IGN] altimètre radar [Termes IGN] charge utile [Termes IGN] Cryosat [Termes IGN] récepteur DORIS [Termes IGN] SAR and interferometric radar altimeter [Termes IGN] satellite d'observation de la Terre Résumé : (Auteur) In the preceding article (A05275), Prof. Duncan Wingham has outlined the genesis of CryoSat, its scientific objectives and its programmatic constraints. The mission objectives are characterised by the determination of small height-related changes over a three-year period. This imposes requirements on the type of measurements to be made, the physical stability of the system, control of the measurement configuration and consistency in the data processing system. The programmatic constraints on the other hand, may be simply characterised as the need for a relatively short development cycle with a stringent cost ceiling. CryoSat is a fully integrated system in which all of the elements have been developed together within the programme to ensure the control needed to satisfy the mission objectives. However, in the interests of readability, the system's description has been split over two articles : this one describing the elements that are to be launched into space, and the following one those parts that will remain on Earth. Numéro de notice : A2005-276 Affiliation des auteurs : non IGN Thématique : IMAGERIE/POSITIONNEMENT Nature : Article DOI : sans En ligne : http://www.esa.int/esapub/bulletin/bulletin122/bul122c_ratier.pdf Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27412 [article]