In English

Turbulences ahead for Sentinel-2 users

*Update* on 27/10/2021 : the deadline has been extended to early January 2022 ! *Update* on 07/10/2021 : The deadline has been extended to the 15th of November !! And sample products are now available. We’re relieved, thank you ESA: *Update* on 29/09/2021 : ESA just detailed the changes here, and they will become operational […]

En Français

Amincissement du glacier d’Ossoue entre 2017 et 2021

Au cours des quatre dernières années le glacier d’Ossoue a perdu en moyenne 6 mètres d’épaisseur. Par endroit, son amincissement dépasse 8 mètres, soit 2 mètres par an. Cette carte a été obtenue par le traitement de couples d’images stéréoscopiques Pléiades (CNES/Airbus DS) acquises le 8 octobre 2017 et le 9 octobre 2021. En octobre […]

Applications

Is DS 4 EO BS?

EO, RS, GS, DS, AI, ML, DL, BS, WTF? Everybody in the Geosciences (GS) and Remote Sensing (RS) community is now aware of the great advances in Data Science (DS) and Machine Learning (ML) that have taken place in the last 10 years. Although many people talk about Deep Learning (DL) or Artificial Intelligence (AI), […]

In English

TRISHNA Workshop Toulouse 2022

>         Save the date : 1st TRISHNA Workshop in March 2022 in Toulouse   Toulouse, France, 22-24 March 2022   WORKSHOP ANNOUNCEMENT   Important note: this page is for information only. Registration and call for abstracts will be available soon on a dedicated website.   Background Monitoring accurately the water cycle […]

Code

Snowmelt and snow sublimation in the Indus basin

The Indus basin has one of the largest irrigation system in the world. Available water resources are abstracted almost entirely, mostly for crop irrigation in Pakistan. The Indus basin is also considered as one of the large basins in Asia with the highest dependence on snowmelt runoff. The contribution of snow and ice melt to […]

CESBIO

Le Mask R-CNN pour la délinéation de parcelles : retour d’expérience

=> Les techniques de l’état de l’art en Deep Learning permettent-elles une délinéation individuelle de chaque parcelle de culture, comme le laisse penser cet article récent ? C’est ce que nous avons cherché à savoir au cours d’un stage au CESBIO en cherchant à qualifier l’architecture Mask R-CNN pour cette tâche. Nous vous livrons ici […]

Comment ça marche /how it works

Feedback on Mask R-CNN for croplands delineation

=> Do state-of-the-art deep learning techniques allow for individual delineation of each cropland, as suggested by this recent article? In the context of an internship at CESBIO, we tried to evaluate the performance of Mask R-CNN architecture for this task. In this post, we summarize what we learned. Mask R-CNN principles To sum up, Mask […]

In English

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 mission with a frequent revisit on the French side, and an experiment of a Ion Thruster to maintain the satellite at a low altitude on the Israeli side. Of course, we did not manage to […]

Composite (3A)

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 Sentinel-2 for the month of July interested the media. It will probably not be the case in 2021, as France thankfully kept its green colour in July.     Because of the cloud cover that […]