Général Centre d’analyse : ULR Nombre de stations : 674 Solution : ULR6B CGPS@TG 482 Date de publication : 2020 Stations de référence 194 Etendue temporelle : 1995.0 - 2013.9 Autres 77 Repère de référence : ITRF 2014
Champs de vitesse vertical Vitesses (robustes) estimées : 493 CGPS@TG 349 Moyenne des erreurs formelles : 0.54 mm/an Médiane des erreurs formelles : 0.36 mm/an
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Statistiques
3 novembre 2020, par Médéric Gravelle -
DOI ULR-repro3 solution
27 May 2022, by Médéric Gravelle– General information Access the data by clicking on the Download tab
Title: GPS Solution ULR7a DOI identifier: 10.26166/sonel_ulr7a Publisher: SONEL Data Assembly Centre Publication year: 2022 Version: a Temporal coverage: 2000-01-01 / 2020-12-31 Tile: The ULR-repro3 GPS data reanalysis solution (aka ULR7a) Language: English Authors
Médéric Gravelle [1], Kevin Gobron [2], Guy Wöppelmann [1] Affiliation: [1]: UMR 7266 LIENSs, CNRS/LRU, La Rochelle, (…) -
Not available yet
21 February 2017, by Guy WoppelmannWork in progress...
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Statistics
8 January 2020, by Médéric GravelleVertical velocity field Estimated (robust) velocities: 1069 CGPS@TG 872 Average of formal errors: 0.83 mm/yr Median of formal errors: 0.67 mm/yr
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17 January 2020, by Médéric Gravelle– Vertical velocities table
The JPL14_Vertical-Velocities_Table provides the vertical GPS velocities and uncertainties from the 436 stations fulfilling the criteria of 3 years of minimum length and data gaps not exceeding 30%, estimated by the JPL group.
– Daily time series
The JPL14.zip file contains individual station data files of daily position time series in ITRF2014 with respect to the position at the epoch 2023-01-01. These positions are expressed in meters in the local frame (…) -
À-propos
3 novembre 2020, par Guy WoppelmannLa solution GPS ULR6b est une version actualisée de ULR6a, alignée dans le repère de référence terrestre ITRF2014, alors que ULR6a est dans l’ITRF2008. Les deux solutions ULR6 résultent de la réanalyse de 19 ans de données GPS allant de 1995 à 2014, réalisées dans le cadre de la seconde campagne de réanalyse de l’International GNSS Service (IGS, plus d’infos ici).
Les observations de phase de l’onde porteuse GPS ont été analysées en double-différence, sans ionosphère, sur un réseau de 756 (…) -
About
17 January 2020, by Médéric GravelleThe GNSS solution named ’JPL14’ is produced by the Jet Propulsion Laboratory (JPL) group using a Precise Point Positioning (PPP) data analysis strategy. JPL’s GipsyX software is employed to produce daily position time series for over 2,000 globally distributed stations using JPL satellite orbits and clock products expressed in the IGS14 reference frame. The data set covers the period January 1994 to April 2022. This GNSS data analysis strategy complies with the standards (models, (…)
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25 August 2020, by Médéric Gravelle– Vertical velocities table
The GT2_Vertical-Velocities_Table provides the vertical GPS velocities and uncertainties from the 593 stations fulfilling the criteria of 3 years of minimum length and data gaps not exceeding 30%, estimated by the GFZ group.
– Daily time series
The GT2_neu.zip file contains individual station data files of daily position time series in ITRF2014 with respect to the position at the mid time series epoch. These positions are expressed in meters in the local (…) -
A propos
27 janvier 2020, par Médéric GravelleLa solution GNSS ’NGL14’ a été développée par le Nevada Geodetic Laboratory (NGL) en utilisant une stratégie de calcul PPP (Precise Point Positioning). Le logiciel de du Jet Propulsion Laboratory (JPL), GipsyX (version 1.0), a été utilisé pour produire des séries temporelles de positions journalières pour plus de 17,000 stations distribuées globalement grâce aux produits d’orbites et d’horloges du JPL exprimées dans le repère de référence IGS14 (Blewitt et al. 2018). La solution couvre la (…)
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20 February 2017, by Mikaël GuichardThe web map enables the users to navigate from one site (station) to another, and click on a specific site in the map to see its attributes. By clicking further, an individual web page for the site can be accessed, where details on the data and meta-data are displayed for that site. The user can then get some additional statistics and download files with the associated time series (sea level differences...). Here, we provide a more comprehensive means to download the data from all the sites. (…)