– Table des vitesses verticales
La table JPL14_Vertical-Velocities_Table contient les vitesses verticales GPS estimées par le groupe JPL pour les 436 stations satisfaisant les critères de 3 ans minimum de longueur avec des "trous" n’excédant pas les 30%.
– Séries temporelles journalières
Le fichier JPL14.zip contient les séries temporelles individuelles de positions des stations exprimées dans l’ITRF2014, calculées par le groupe JPL, par rapport à la position à l’époque de référence (...)
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Téléchargements
27 janvier 2020, par Médéric Gravelle -
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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 (...) -
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, (...) -
Fournisseurs GNSS
9 janvier 2017, par eprout01 -
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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Results of the calibration tests
10 December 2010, by FrankThe results of the test measurements ’in situ’ are directly incorporated into the pages corresponding to the tide gauge in question. The test missions are generally the subject of a report in which the results of the use of the calibration measurements (Van de Casteele diagram) are published. Here is an example: test of the tide gauge at Socoa (Saint Jean-de-Luz) in May 2007.
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Last data events
28 February 2020, by eprout01table td, table th border: 1px solid #B47529; padding: 3px; table tbody tr td + td+td+td,table tbody tr td+td+td+td+td+td+td+td white-space: nowrap;
This page enumerates the last events that occured concerning the data recovering in SONEL. Here are the significations of the different event types:
New sitelog: a new site log has been recovered within the last 4 weeks. New GNSS: a new GNSS station has been included in SONEL within the last 2 months. New (...) -
What GNSS data?
10 December 2010, by Guy WoppelmannThe GNSS observations that we provide are in the form of daily 30s files (24h of observations at 30s intervals) in the standard international RINEX format. Further information on the RINEX files.
Apart from the RINEX observation files of the GNSS stations, SONEL provides ancillary information which enables a precise analysis of the GNSS measurements, in particular :
– the precise orbits of IGS,
– the Earth orientation parameters of IGS. Evolution of the number of Rinex (...) -
How to access the tide gauge observations
20 February 2011, by Guy WoppelmannThe files of average values
Only the daily, monthly and annual averages calculated from quality controlled (QC’ed) data are provided in the data files. However, the graphs show the averages calculated from QC’ed observations (in blue) and non-QC’ed observations (in red). The averages are calculated from the Demerliac filter and the Doodson filter, with the possibility of a choice for the user. An example is given on the image below, which is taken from the web page of the La Rochelle (...) -
Quelles observations ?
16 février 2011, par Guy WoppelmannLes observations des marégraphes sont des hauteurs du niveau de la mer exprimées par rapport à un plan de référence arbitraire (conventionnel) et local. A ce titre, on parle de mesures relatives du niveau de la mer (par rapport à la côte sur laquelle repose le marégraphe).
Les hauteurs du niveau de la mer disponibles sur SONEL sont : des hauteurs de niveau moyen de la mer journalier obtenues en appliquant différents filtres de la marée (ex. Doodson, Demerliac) ; des hauteurs de niveau (...)