Zermatt is in the corner of the Sentinel-2 tile 32TLS, which is produced at level 2A by Theia. Hence I could generate the snow maps at 20 m resolution for this area (105 dates from December 2015 to October 2017).
THEIA passed two new milestones in this beginning of summer :
Data are available from https://theia.cnes.fr
Deux évènements à signaler pour le centre de traitement MUSCATE de Theia pour ce début d'été :
Les données sont disponibles sur https://theia.cnes.fr
In the framework of the Pyrenees Climate Change Observatory (OPCC) the Cesbio is contributing to the analysis of the snow cover using satellite imagery. In 2016 four projects associated with the Observatory (Climpy, Replim, Canopee y Florapyr) have been programmed with European Regional Development Funds for transborder cooperation on adaptation to climate change for the next three years .
The animation below shows the evolution of Thwaites glacier eastern ice shelf in West Antarctica, from July 2016 to May 2017. I made it with 45 quicklooks of Sentinel-1 radar images processed by the Alaska Satellite Facility and available via the vertex data portal. All images were acquired in interferometric wide swath mode (polarization HH, only ascending passes, path: 65, frame: 914) and projected to ground range.
Le 16 février 2017 l'astronaute français Thomas Pesquet a pris cette photo depuis la station spatiale internationale:
— Thomas Pesquet (@Thom_astro) March 17, 2017
We know that fast distribution of satellite products is critical for many applications, including the planning of your next weekend.
Olivier just announced that Theia is now delivering Sentinel-2 Level 2A data in near real time. This is great because today I was able to make the snow cover map of the Pyrenees on Sunday at 20-m resolution.
The L2A image was actually published on Tuesday afternoon so I could have posted this snow map two days ago.
just this once, we are ahead of time. Well, nearly. We had promised the 2016 land cover map or France before the end of first term of 2017. It exists and is available here. It's resolution is 10m, with the same 17 classes nomenclature that we used for Landsat landcover map of 2014..
The map is mainly based on the Sentinel-2 data acquired from end 2015 to end 2016, but we have also processed the LANDSAT 8 data. We will provide some details below.