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23.01.2023 14:59 Age: 1 year

Premières données altimétriques (nadir) océaniques de Swot

Category: News of the Swot mission

Les instruments de la charge utile de Swot ont été mis en route un par un au cours des dernières semaines.

First Poseidon-3C Ku waveform (Credit Cnes)

[Translate to francais:] Poseidon-3C nadir altimeter first Ku-band waveforms (Credit Cnes)

Swot nadir along-track sea level anomalies (one track) overlaid on gridded altimetry sea level anomalies for the same day (Credit Cnes for Swot, Copernicus Marine Service for the gridded data)

[Translate to francais:] Swot nadir along-track sea level anomalies (one track) overlaid on gridded altimetry sea level anomalies for the same day (Credit Cnes for Swot, Copernicus Marine Service for the gridded data)

Les instruments de la charge utile de Swot ont été mis en route un par un au cours des dernières semaines.

Le premier altimètre à être allumé est l'altimètre nadir, Poséidon-3C, après la charge utile d'orbitographie précise (instruments Doris et GPS). Le segment sol a commencé à traiter les données de l'altimètre nadir, du radiomètre micro-ondes et d'orbite, fournissant ainsi les premières hauteurs de mer mesurées par Swot. Les comparaisons avec les données multi-missions (incluant notamment Jason-3, Sentinel-6 Michael Freilich, Saral, etc.) montrent la très bonne qualité de cet altimètre classique et des traitements appliqués. 

 

L'altimètre-interféromètre KaRIn, la grande innovation de cette mission, est le dernier de la séquence de mise en route, mais les segments spatiaux et sols ont déjà démontré une qualité tout à fait conforme à celle des missions précédentes.

 

 

 

 

 

 

 

 

 


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