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World-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)  

Public [article]  inJournal of geodesy > vol 79 n° 6-7 (September - October 2005) . - pp 293 - 299 Titre : World-wide synthetic tide parameters for gravity and vertical and horizontal displacements Type de document : Article/Communication Auteurs : K.H. Zahran, Auteur ; G. Jentzsch, Auteur ; Günter Seeber, Auteur Année de publication : 2005 Article en page(s) : pp 293 - 299 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique [Termes IGN] déformation verticale de la croute terrestre [Termes IGN] force de gravitation [Termes IGN] marée terrestre [Termes IGN] modèle de simulation [Termes IGN] surcharge océanique Résumé : (Auteur) The response of the Earth's crust to the direct effect of lunisolar gravitational forcing is known as the body tide. The body tide is superimposed by surface-loading forces due to the pressure of the periodically varying ocean tide acting on the Earth, called ocean tide loading (OTL). Both body tide and OTL can be decomposed into components of the same frequency known as tidal parameters. However, OTL is more complicated than body tides because of the dynamic effects of the ocean. Estimating OTL requires a model of the ocean tides and knowledge of the elastic properties of the solid Earth. Thus, synthetic tide parameters (amplitude factors and phase leads) have been developed here on a world-wide grid for gravity and positional displacements. The body tide contributions were added to the oceanic contribution to provide the Earth tide response. The accuracy and reliability of the synthetic tidal parameters have been estimated by comparing observed gravity and vertical-displacement tide parameters with those interpolated from our synthetic model, which shows good agreement. Tests also indicate that the synthetic tide parameters provide realistic gravimetric and displacements for practical use in tidal prediction. Numéro de notice : A2005-369 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-005-0460-3 En ligne : https://doi.org/10.1007/s00190-005-0460-3 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27505 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
266-05072	RAB	Revue	Centre de documentation	En réserve L003	Disponible
266-05071	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Defining a DORIS core network for Jason-1 precise orbit determination based on ITRF2000 : methods and realization / Pascal Willis in Journal of geodesy, vol 79 n° 6-7 (September - October 2005)  

Public [article]  inJournal of geodesy > vol 79 n° 6-7 (September - October 2005) . - pp 370 - 378 Titre : Defining a DORIS core network for Jason-1 precise orbit determination based on ITRF2000 : methods and realization Type de document : Article/Communication Auteurs : Pascal Willis , Auteur ; J.C. Ries, Auteur Année de publication : 2005 Article en page(s) : pp 370 - 378 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] International Terrestrial Reference Frame [Termes IGN] Jason [Termes IGN] orbitographie [Termes IGN] point de liaison (géodésie) [Termes IGN] positionnement par DORIS [Termes IGN] station DORIS [Termes IGN] système de référence géodésique [Termes IGN] TOPEX-Poseidon Résumé : (Auteur) In view of the future adoption of the new precise orbit determination (POD) standards for the TOPEX/Poseidon and Jason-1 satellites, we propose a method to evaluate terrestrial reference frames for POD. We applied this method to the ITRF2000 realization of the DORIS network using local geodetic ties, plate motion models, the recent DORIS IGNO4DO2 cumulative solution and DORIS weekly time-series of coordinates. We propose to adopt a selection of the ITRF2000 realization based on specific criteria that we define here, and to extend it with ground stations for which we propose new coordinates and velocities. Only 13 out of 131 stations were considered to be inappropriate for POD activities. The result is a robust and well-distributed DORIS core network of 118 stations (DPOD2000) suitable for POD during the 1993-2008 period considered here. Numéro de notice : A2005-370 Affiliation des auteurs : IGN+Ext (1940-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-005-0475-9 Date de publication en ligne : 07/07/2005 En ligne : http://dx.doi.org/10.1007/s00190-005-0475-9 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27506 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
266-05072	RAB	Revue	Centre de documentation	En réserve L003	Disponible
266-05071	RAB	Revue	Centre de documentation	En réserve L003	Disponible