An anomaly provisionally prevents real time production in ESA's Sentinel-2 ground segment

That's bad luck, just before the long week-end of the 15th of August, ESA Sentinel-2 ground segment failed and ceased production. This explains why Theia ground segment is not producing in real time anymore.

Pas de chance, le segment sol de Sentinel-2 À L'ESA est tombé en panne juste avant le week-end du 15 août. Ceci explique pourquoi la production de Theia ne s'effectue plus en temps réel.

As a consequence of a ground segment contingency occurred at Matera station, the publication of Sentinel-2 products in the data hubs is temporarily interrupted as of today 11 August. The anomaly is under investigation and the data dissemination is expected to resume by mid of next week.

NASA selected CESBIO's land cover map of France as "image of the day"

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It is a well deserved recognition for the land cover product developed at CESBIO : NASA's earth observatory blog dedicated its "image of the day" blog post for the 15th of August to this product.

 

This work was done in the framework of Theia, using iota2 free software also developed at CESBIO. Thanks to the information conveyed by time series,iota2 is a fully automatic processor.

Jordi Inglada's team first published in 2015 a land cover map based on LANDSAT 8 data acquired in 2014, with a 30m resolution.This production was followed, in 2017 by a new map, based on Sentinel-2 data, acquired in 2016, at 10m resolution.

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La NASA choisit le produit d'occupation des sols OSO du CESBIO comme "image du jour "

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C'est une reconnaissance bien méritée pour le produit d'occupation des sols OSO développé et produit au CESBIO : le blog "earthobservatory" de la NASA a consacré son article "image du jour" du 15 août à ce produit.

 

Ce travail a été conduit dans le cadre de Theia, avec le logiciel libre iota2 développé au CESBIO. Grâce à l'utilisation de toute l'information contenue dans les séries temporelles  d'images, la chaîne iota2 arrive à fournir un résultat de grande qualité, tout en étant complètement automatique.

 

L'équipe de Jordi Inglada a publié une première carte en 2015, basée sur les données LANDSAT 8 acquises en 2015, avec une résolution de 30m. Cette production a été suivie, début 2017, d'une carte basée sur les données Sentinel-2, acquises en 2016, cette fois à une résolution de 10m.

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THEIA distributes L2A Sentinel-2 data over Spain and Netherlands in near real time.

=>  Sentinel-2 data acquired above Spain and Netherlands are now available on Theia website! Portugal was already available. We also completed the little part of Belgium that was missing. The level 2A product provides surface reflectances with a good cloud and shadows mask. The processing is done at CNES, within MUSCATE facility, using the MAJA software, developed by CNES, CESBIO and DLR.

 

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THEIA distribuye datos de Sentinel-2 al nivel 2A sobre toda la península Ibérica, en casi tiempo real

=> Los datos del satélite Sentinel-2 sobre la península ibérica, procesados al nivel 2A,  ahora están disponibles en el sitio web de Theia ! El producto de nivel 2A ofrece reflectancias de superficie, después de una corrección atmosférica, con una buena mascara de los nubes y de sus sombras. El procesamiento es hecho en CNES (el Centro Nacional de Estudios eSpaciales), con el software MAJA, desarrollado por CNES, CESBIO y DLR.

 

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Venµs is in orbit and in good health

The Venµs satellite was launched very early today from Kourou on a Vega rocket. Venµs has always been late so far, but we now can say that it was at least early once ! The first news from the satellite are excellent, and everything is green. Venµs first images will hopefully be taken this month, and the 3 months commissioning phase will start, before we can declare Venµs operational.

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MUSCATE : New tiles in Europe will be added within Theia's production of Sentinel-2 L2A products

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Just before the holiday period, we are very happy to tell that all the sites that had been selected by Theia for the production of Sentinel-2 Level 2A products are now in production within MUSCATE. for Theia Land data center. The number of tiles processed each days often tops 400 ! Only a couple of sites need a few more days to be completed.
 

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But that's not the only good news : given we have some production margins, we are going to add 200 tiles in Europe : Spain, Portugal, Italy, Netherlands, Belgium, Luxembourg, Switzerland, and small parts of Germany and Austria will be included in Theia's production. The new tiles, which appear in red in the image above, will be available in August, starting from images acquired in December 2016. We are also talking with other partners to generalize MAJA processing over Europe.

 

Finally, regarding Sentinel-2B, a few weeks will be necessary 1) to get some rest, 2) check the quality of our products. S2B data release from Theia should happen in September.

Muscate : toutes les zones sélectionnées ont été mises en traitement

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Juste avant les vacances, nous pouvons annoncer de très bonnes nouvelles de la production de données Sentinel-2 au niveau 2A, par le centre de traitement de MUSCATE du CNES, pour le compte du centre de données Theia. Pour un petit nombre de sites, il nous faudra encore quelques jours pour terminer la production, mais le nombre de produits traités chaque jour dépasse fréquemment les 400.

 

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Enfin, vues les bonnes performances enregistrées, nous allons ajouter environ 200 tuiles à notre liste, en Europe. L'Espagne, le Portugal, l'Italie, la Hollande, la Belgique, le Luxembourg et la Suisse, et des morceaux d'Allemagne et d'Autriche, seront entièrement incluses dans la production de Theia, à partir de décembre 2016. Les nouvelles tuiles, qui apparaissent en rouge sur l'image ci-dessus seront disponibles en août, et seront par la suite traitées en temps réel. Nous discutons aussi avec des partenaires européens pour que l'ensemble de l'Europe soit progressivement mis en production.

Quant à Sentinel-2B, laissez nous quelques semaines pour 1) prendre des vacances et 2) vérifier la qualité des résultats. Ce sera donc pour le mois de Septembre.

 

THEIA releases Sentinel-2 L2A time series over several regions of Brazil

Theia has added seven new sites in Brazil, for which Sentinel-2 L2A are produced and distributed, starting in December 2016.  These sites will be processed in near real time from now on. Data are produced by the MUSCATE system at CNES, using CNES-DLR MAJA processor. The products can be freely downloaded from https://theia.cnes.fr.

 

These sites were selected following demands from French scientists, with two main themes :

  • Land cover and land use change monitoring
  • Water body surface and turbidity

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S2B data are now available on Copernicus hub

A very good piece of news:  ESA started distributing Sentinel2-B data on Copernicus hub, two months ahead of schedule. This is really an achievement !

Here is ESA's announcement :

Following the successful completion of the Sentinel-2B Satellite In-Orbit Commissioning Phase, we are happy to announce that access to Sentinel-2B Level-1C products will be opened to all users on 6 July .

Access to Sentinel-2B products will initially be provided through a dedicated hub accessible via the Copernicus Open Access Hub home page with public credentials. This dedicated interface will be maintained until early September, at which point both Sentinel-2A and Sentinel-2B products will be commonly accessible through the nominal Data Hub interfaces.

 

Regarding Theia L2A production, we will have to wait for the availability of the data in PEPS, by end of July, and then perform some validation before releasing the data. Given the holiday period, it will probably happen in September. However, we have already checked that our L2A products, produced with MAJA withing MUSCATE should be great, as shown in this post some time ago: