Sentinel-1

First satellite images of Nord Stream leaks

I found the leak from Nord Stream 2 in the latest Sentinel-1 image (29 Sep 2022). It’s large enough to be visible from space. From this radar image, I could also spot the leak in the Landsat image captured on the same day (29 Sep). And there’s another leak visible northeast of Bornholm Island, this […]

29.09.2022

INFERNO: a new software processing radar interferometry time series using Sentinel 1 products

=> The applications of interferometric techniques on radar images are currently developing in many fields. Being able to easily process and plot radar images, interferograms or time series of interferograms with a tool and data that are free and available without being a specialist is an important issue for scientists or companies that do not […]

01.09.2022

TropiSCO scores against deforestation

=> The TropiSCO project aims at providing maps of tree cover loss in dense tropical forests using Sentinel-1 satellite images, starting in 2018 and in near real time. The maps will soon be publicly available via a webGIS platform and updated weekly at 10m resolution. Forest loss as small as 0.1 hectare will be detected […]

05.02.2022

TropiSCO secoue la déforestation

=> L’objectif du projet TropiSCO est de fournir des cartes de suivi des pertes de couverture forestière dans les forêts denses tropicales avec les images des satellites Sentinel-1, à partir de 2018 et en continu. Les cartes seront bientôt accessibles publiquement via une plateforme webGIS et mises à jour toutes les semaines, à 10m de […]

Sentinel-1b is currently out of work

New Update : 1.5 month after, ESA has not yet been able to resume operations with Sentinel-1. The work is now concentrating on understanding the cause of the breakdown, to determine if some modifications are necessary before launching Sentinel1C, not before the end of 2022. Update : 1 week after, attemps to resume exploitation of […]

11.01.2022

La barrière de glace orientale du glacier Thwaites est en train de craquer

Thwaites est un immense glacier en Antarctique qui contribue déjà à 4% de la hausse du niveau des océans à lui tout seul. La barrière de glace flottante devant le front oriental du glacier agit comme un barrage qui ralentit le flux de glace du continent vers l’océan. Si cette plateforme de glace se brise, […]

29.12.2021

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

Muldrow Glacier surge in Alaska

Muldrow Glacier (McKinley Glacier) is a large glacier in Denali National Park and Preserve in Alaska, USA. It is now moving 100 times faster than normal, which means that it is undergoing a « surge ». The abrupt acceleration of the glacier movement is clearly visible in the recent series of Sentinel-1 SAR backscatter images (animation below). […]

15.04.2021

TropiSCO : a project to monitor tropical deforestation with Sentinel-1 on a weekly basis

=> Do we need to remind you of all the collateral damage linked to deforestation or the eco-system services that forests provide ? We have already talked about these in this blog (here and there too). Yet forests are disappearing at an alarming rate. Between 1990 and 2020, an area of forest equal to more […]

20.02.2021

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