=> The MUSCATE processing centre at CNES, which belongs to French THEIA land data centre, produces and distributes all the Landsat 8 data acquired above France at Level 2A. Level 2A products contain surface reflectances after atmospheric correction, and a very good cloud mask. LANDSAT 8 first routine data had been acquired on April 13th […]
=>Le centre de traitement prototype MUSCATE du CNES, pour le compte de THEIA, continue à produire au niveau 2A et a distribuer les données LANDSAT 8 acquises au dessus de la France. Les produits de niveau 2A fournissent des réflectances de surface, après correction des effets atmosphériques, accompagnées d’un très bon masque de nuages. Les […]
=> The validation of MUSCATE, CNES ground segment to process Sentinel-2 data, and MACCS (our L2A software) is going on, in order to start processing Sentinel-2A data at level 2A soon (in a few weeks…). A previous post compared MACCS cloud masks with those of Sen2cor. For this one, time series have been generated for […]
=>La validation de MUSCATE et MACCS se poursuit, dans le but de démarrer prochainement le traitement des données de niveau 2A (dans quelques semaines). Un post précédent comparait les masques de nuages issus de MACCS avec ceux de Sen2cor, la chaîne de l’ESA. Des séries temporelles ont récemment été traitées sur 4 sites, et sur […]
=> A couple of days before the living planet symposium, ESA issued a new version of Sen2cor (V2.2.1), the Sentinel-2 atmospheric correction toolbox. I had made a first comparison of MACCS and Sen2cor results using V2.0.6, regarding the cloud masks mainly, in which I concluded the scene classification was really bad, but probably due to […]
I did not have the chance to attend the latest ESA’s Living Planet Symposium so I was curious to read Olivier’s report. The picture in his post shows a crowded room… but what stroke me most is that it looks like 90% of the people in the room are middle-age men. There is no public […]
If I haven’t posted for more than a week, it is because I have been participating to the Living Planet Symposium 2016 in Prague. With the preparation, travel, and participation to this crazy symposium. I say crazy because it is packed with about 3000 people, of which I know only about 300. When you want […]
=> La télédétection satellite optique est un outil formidable pour suivre l’étendue du manteau neigeux en montagne… sauf quand il y a des nuages ! La télédétection radar du manteau neigeux (indifférente aux nuages) n’est pas encore opérationnelle en zone de montagne, notamment en raison du fait que le signal rétro-diffusé par le manteau neigeux […]
=> Optical remote sensing is great to map the snow cover extent in mountain regions as long as there is no cloud above the land surface. Radar remote sensing of the snow cover is not operational yet mainly because the backscatter from the snow surface is strongly dependent on the snowpack liquid water content. On […]