=> 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.
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.
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
Yesterday Theia shifted into high gear and released 1300 snow products!. These products correspond to 13 Sentinel-2 tiles covering the Western Alps (France/Italy/Switzerland), the Pyrenees (France/Spain) and the Hight Atlas (Morocco).
Hier Theia est passé à la vitesse supérieure et a mis à disposition 1300 produits neige ! Ces produits correpondent aux 13 tuiles Sentinel-2 qui couvrent les Alpes Occidentales (France/Italie/Suisse), les Pyrénées (France/Espagne) et le Haut-Atlas (Maroc).
This was made possible thanks to the great work of Dominique Clesse, Joëlle Donadieu, Céline L'Helguen, Arnaud Selle and Simon Baillarin at CNES. Merci à eux !
After 3 years of development, we are very happy to share the news of Sen2Agri system release. Sen2Agri system is a fully automatic production system to produce agriculture information from Sentinel-2 data, with a focus on food security applications. For this reason, the final user meeting was held in Rome at Food and Agriculture Organization and World Food Program. The Sen2Agri project was funded and managed by ESA, and developed by a consortium led by Université Catholique de Louvain, with CESBIO, CS France and CS-Romania.
A very attentive audience at the User Final Meeting, in the impressive World Food Programm conference room
The system manages the following operations :
- Sentinel-2 and LANDSAT 8 data download,
- L2A processing with MACCS/MAJA software (developed by CNES and CESBIO)
- Monthly Synthesis product generation (with a method developed at CESBIO)
- Generation of LAI products (based on a method developed at INRA, France, and updated, integrated to Orfeo Toolbox by CESBIO)
- A Crop mask (issued several times per year), with two different methods :
- without in situ data (method developed at UCL)
- with in-situ data (method developed at CESBIO)
- A crop type product (with a method developed at CESBIO, an early version of iota2 processor)
The scientific work behind the methods was described in a special issue of MDPI remote sensing.
We are pleased to announce that Theia has put online 93 Sentinel-2 snow products, corresponding to 6 tiles in the Alps, Pyrenees, and Atlas mountains between July 2016 to November 2016. 300 more products should be available next week. The operational production should start in autumn 2017 (i.e. near real time), and will cover a larger area. We will also strive to improve the products based on the users feedbacks!
Time series of available products for tile 30TYN (Pyrenees)
THEIA passed two new milestones in this beginning of summer :
- The number of Sentinel-2A Level2A products just passed the 20000 milestone, with the complete collection of French oversea regions, and new sites along the Ganges, Brahmaputra and Mekong rivers. These sites where chosen by a research team from the GET laboratory in Toulouse.
Data are available from https://theia.cnes.fr
In the framework of the Pyrenees Climate Change Observatory (OPCC) the Cesbio is contributing to the analysis of the snow cover using satellite imagery. In 2016 four projects associated with the Observatory (Climpy, Replim, Canopee y Florapyr) have been programmed with European Regional Development Funds for transborder cooperation on adaptation to climate change for the next three years .
After having written rather bad news from MUSCATE for quite a long time, I am very happy to send good ones, and I have to restrain myself not to provide news every day.
Here is the number of L2A products we are producing every day. The visible enhanced performance is due to several reasons :
The animation below shows the evolution of Thwaites glacier eastern ice shelf in West Antarctica, from July 2016 to May 2017. I made it with 45 quicklooks of Sentinel-1 radar images processed by the Alaska Satellite Facility and available via the vertex data portal. All images were acquired in interferometric wide swath mode (polarization HH, only ascending passes, path: 65, frame: 914) and projected to ground range.