In English

Stealth snow near Albuquerque, New Mexico

« Give me a hundred tries, I’ll never be able to spell it. » Jimmy McGill I haven’t seen the « Breaking Bad » series but I’m a huge fan of « Better Call Saul ». Both series take place in Albuquerque, New Mexico. With its dry, sunny weather, Albuquerque is the perfect place for a modern-day Western. Vince Gilligan, the […]

08.11.2020

Sentinel-2 time series resolution should finally reach 10m in November

We have been waiting for a long long time, but it seems the production of geometry refined Sentinel-2 L1C will start by next month. I have heard ESA plans to reproduce the whole data set later on, but the schedule has not been announced yet. « Start of the geometry-refined production using the Global Reference Image […]

13.10.2020

A phase 0 study for Sentinel-HR

=> In 2018, Olivier Hagolle presented in this article the Sentinel-HR concept : an optical satellite in the metric spatial resolution class providing global, repetitive, systematic observations with an open access policy. By doing so, he continued the work of Gérard Dedieu who had already advocated for this concept in the previous years. Thanks to […]

09.10.2020

MAJA 4.2 est disponible et devient un logiciel libre.

=> MAJA est un logiciel de détection de nuage et de correction atmosphérique de qualité, développé par le CNES et le CESBIO, avec des contributions du DLR.  Il est codé par CS GROUP. MAJA est utilisé pour traiter les données Sentinel-2 par le Pôle Theia, par les projets Sen2Agriet Sen4cap de l’agence spatiale Européenne, par […]

05.10.2020

MAJA 4.2 is available and open source

=> MAJA is the high quality cloud detection and atmospheric correction code developped by CNES and CESBIO, with contributions from DLR, and coded by CS GROUP. It is used within Pôle Theia, Sen2Agri, Sen4cap, DLR, EEA Snow&Ice, KERMAP… to process #Sentinel2 time series. It’s been a long time since we wanted to make MAJA available […]

01.10.2020

Sentinel-2 Level-3A time series

=> A few days ago, the Theia land data centre released the July 2020 monthly cloud free synthese of surface reflectances from Sentinel-2, for France, but also Italy, Spain, Switzerland, Belgium, Netherlands, the Northern part of Maghreb and Madagascar, and a large part of Sahel  The distribution site of Theia products at CNES now provides […]

29.08.2020

[MUSCATE News] Theia production is stalled (solved)

Update (18/08/2020): all the issues have been corrected, MUSCATE production and distribution have resumed. Update (17/08/2020):  production has resumed, but it will take us a couple of days to catch the backlog up.  The download site is still offline, but this should be solved quickly.   Following the failure of an equipement which hosts the […]

17.08.2020

[Directional effects] What field of view for the next generation of Sentinel-2 ?

The European Union is planning a new generation of the Sentinel-2 mission in 2030 or soon after. The main request from users is to improve the revisit frequency from 5 days to 2 to 3 days. There are two ways to improve the revisit: According to ESA and Airbus, the second solution is cheaper, and […]

08.07.2020

[Directional effects] how far can we extend Sentinel-2 field of view ? Conclusions

  This is the final post of a series of studies we did to find out how far we can extend the field of view of next generation of Sentinel-2 satellites. I hope I did not lose most readers in the length of the previous posts. For the readers who land on this page, which […]

Rechercher