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Updated: 4 weeks 19 hours ago

[Sentinel-3B] Already starting Calval activities on all instruments

Thu, 2018-05-17 00:56
The second Copernicus Sentinel-3 satellite, Sentinel-3B, lifted off on a Rockot from the Plesetsk Cosmodrome in northern Russia at 17:57 GMT (19:57 CEST) on 25 April 2018. It will join its twin Sentinel-3A, in orbit since 2016, for a tandem phase of four months which will start at the beginning of June. Both Sentinels will fly just 223 km apart, which means that Sentinel-3B will be a mere 30 seconds behind Sentinel-3A. After this, Sentinel-3B will be moved apart on the same orbit to a wider separation (140°). Both ESA-developed Copernicus satellites carry four Earth-observing instruments to measure oceans, land, ice and atmosphere:
  • Ocean and Land Colour Instrument (OLCI),
  • Sea and Land Surface Temperature Radiometer (SLSTR), 
  • SAR Radar Altimeter (SRAL), 
  • MicroWave Radiometer (MWR), 
and instruments fo Precise Orbit Determination (POD) including:
  • DORIS receiver (Doppler Orbitography and Radiopositioning Integrated by Satellite)
  • GNSS receiver (Global Navigation Satellite System)
  • LRR (Laser Retro Reflector)
All instruments have been progressively switched on, in particular :
DORIS on May 1st at 10:30:00 UTC
MWR (radiometer) on May 7th at  09:48:00 UTC
SRAL (altimeter) on May 8th at 06:02:05 UTC CalVal activites are already ongoing with a strong implication of CNES, CLS and Noveltis team.
Categories: Climate Science News

Temporary interruption of the Aviso+ website on May 15th

Mon, 2018-05-14 07:43
Temporary interruption of the Aviso+ website on May 15th  For maintenance reasons, the AVISO+ website will be unavailable on Tuesday 15th May for some hours from 10:00 CET.  We apologize for the inconvenience.
Categories: Climate Science News

May 2018: Eddies' birth and decay around Antarctica

Tue, 2018-05-08 01:38
25 year long time series of eddy detection is now available and enable to better understand the...
Categories: Climate Science News

16 - 22 April 2018 week

Fri, 2018-04-27 07:20
More than 12,000 marine creatures uncovered during West Java deep-sea exploration (Science Daily, 17/04/18) "Le glacier n'est plus qu'une carapace vide" : au Pérou, sur "la route du changement climatique" (France Info, 22/04/18) La Nasa lance avec succès un télescope en quête de vie dans l'espace (Presse Océan, 19/04/18) Meteorite diamonds 'came from lost planet' (BBC, 18/04/18) How gravitational waves might help fundamental cosmology (Nature International journal of Science, 11/04/18) Les océans étaient probablement très chauds il y a 760 millions d’années (Futura Planète, 19/04/18) On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.
Categories: Climate Science News