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The plainbow over Fraser river sediment plume

Sentinel-2 captured an impressive view of the Fraser river sediment plume in Georgia Strait caused by the historic flood in British Columbia (250 mm rainfall in 48 hours). The image contains an amusing detail west off the Vancouver International Airport. This red-green-blue object is an airplane or « plainbow« . It is due to shifts between the […]

22.11.2021

MAGicians and deep learning wizards

There are several MAGicians in the CESBIO laboratory, and I am one of them (with all due modesty). According to my definition, MAGicians are participants to Mission Advisory Groups, for instance for CNES or ESA satellite projects. These days, I participate to the MAG for Sentinel-HR at CNES, and for Sentinel-2 Next Generation at ESA. […]

11.11.2021

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 […]

27.10.2021

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), […]

11.10.2021

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 […]

08.10.2021

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 […]

27.09.2021

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 […]

24.09.2021

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 […]

18.09.2021

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 […]

30.08.2021

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