Turbulences ahead for Sentinel-2 users
*Update* on 07/10/2021 : The deadline has been extended to the 15th of November !! And sample products are now […]
VENµS, the little satellite that goes up and down
The Israeli and French VENµS satellite is a small research satellite designed to test two innovative missions : an optical […]
A very green France in July 2021
=> When the summers were hot and dry during the past years, our monthly cloudfree syntheses of surface reflectances from […]
Une France bien verte en juillet 2021
=> Depuis quelques années, lors de chaque été sec en France, nos synthèses mensuelles de réflectances de surface issues de […]
Notre nouveau travail, jardiniers !
=> Après qu'un premier tracteur s'est approché trop près de notre station ROSAS, le suivant est passé un peu trop […]
Our new job: gardeners !
=> After a first tractor came too close from our ROSAS station, the next one passed by a little too far. […]
Can commercial satellites do the job of Sentinel-HR ?
This post intends to answer a question about Sentinel-HR, that we have had quite often inside or outside CNES : […]
2 000 downloads for MAJA !
The distribution of MAJA L2A processor, as an executable software, started in april 1997, but we started counting the number […]
Can surface reflectance be negative ?
=> Here is a frequently asked question : I noticed, in such L2A product processed by MAJA, that some pixels […]
Comment ça marche /how it works
Corrections (geometry, atmosphere, clouds)
En Français
MAJA
Sentinel-2
THEIA
Venµs
Les réflectances de surface peuvent-elle être négatives ?
=> Voici une question que je reçois assez fréquemment : J'ai remarqué dans (tel produit L2A Sentinel-2 corrigé des effets […]