=> For the past few months, Copernicus has been distributing Level 3A products for the Sentinel-2 mission as part of the S2GM (Sentinel-2 Global Mosaics) . This ambitious project aims to provide monthly, quarterly or annual Level 3A products worldwide. The user defines his zone and period of interest and orders the product. The web site […]
=>Copernicus diffuse depuis quelques mois des produits de niveau 3A pour la mission Sentinel-2 dans le cadre du projet S2GM (Sentinel-2 Global Mosaics). Ce projet très ambitieux a pour but de fournir, à l’échelle mondiale, des synthèses mensuelles, trimestrielles ou annuelles. L’utilisateur définit sa zone et sa période d’intérêt et commande le produit. Le site est […]
It is not that frequent when the work of a trainee ends up as a peer reviewed publication, but Louis Baetens was a brilliant trainee. In a six months training period at CESBIO, funded by CNES, here is what Louis Baetens did: The publication was just released by remote sensing :Baetens, L.; Desjardins, C.; Hagolle, […]
The MUSCATE production centre will be offline for a week from February 25th to March 4th (or maybe the week after, please see Theia’s RSS feed to see the exact date). This pause will be necessary to upgrade the processing centre to V2.5. As a result, we will not be able, for a week, to […]
The version 3.2.2 of MAJA cloud detection and atmospheric correction software has just been released! It brings a lot of improvements. It can be used to process Sentinel-2 data in four different manners that will be described below : Improvements
Il y a quelques semaines, nous annoncions la sélection d’une nouvelle zone de production de données Sentinel-2 au niveau 2A par Theia, au Sahel. La production a démarré, et Theia a déjà produit les tuiles de la zone UTM28 (à l’ouest). Les tuiles en vert foncé existaient déjà, mais nous avons rajouté celles en vert […]
Similarly to the aerosol retrieval, the retrieval of water vapour in MAJA atmospheric correction has also been improved, thanks to the work of Elsa Bourgeois (Cap Gemini) and Camille Desjardins (CNES). An accurate estimation of water vapour is not necessary to perform an accurate atmospheric correction, because water vapour absorption in most of Sentinel-2 bands […]
We had announced quite a long time ago the coming availability of MAJA 3.1 to correct for the atmospheric effects on Sentinel-2, Landsat 8 or Venµs satellites. This version brings a significant improvement in the estimation of Aerosol Optical Thickness, thanks to the use of Copernicus Atmosphere Monitoring Service (CAMS) data to constrain the aerosol […]
The bad news The MUSCATE ground segment that delivers Sentinel-2A products has had several issues these past two weeks. We have had some performance issues with the data base which tells MAJA processor which product must be processed next. These lower performances caused traffic jams and disruptions in the data production, and the system […]