Geomystery near Mount Everest
I noted a curious dark trace on the steep slope below South Col between Mount Everest and Lhotse in this 3D view of a Sentinel-2 image (2019 Mar 29)…
I noted a curious dark trace on the steep slope below South Col between Mount Everest and Lhotse in this 3D view of a Sentinel-2 image (2019 Mar 29)…
Le 1er avril est la date souvent utilisée par les hydrologues pour caractériser le stock de neige disponible avant la saison de fonte. A partir des produits neige Theia, j’ai calculé la durée d’enneigement par pixel de 20 m dans les Pyrénées depuis le début de l’année hydrologique (le 1er septembre 2018) jusqu’au 1er avril […]
Le Syndicat Mixte d’Aménagement de la Vallée de la Durance [1] commence à utiliser les cartes d’enneigement produites par Theia pour alimenter sa cartothèque. Il s’agit d’un démonstrateur en cours d’élaboration mais qui est consultable par tous en ligne. Merci à Pascal Dumoulin pour l’info !
The Polar Geospatial Center has put online a nice web mapping interface to browse and download trimetrogon aerial (TMA) photography of Antarctica [1]. The trimetrogon was a system of three cameras which captured three photographs at the same time, one vertical and two high oblique. I made the animation [2] below with the left photos […]
Several areas in Nebraska experienced record flooding this past week.
The animation below shows the evolution of the snow cover area near Andorra la Vella, the highest capital city in Europe and a popular ski resort, from 15-Feb-2019 to 27-Feb-2019.
Venµs is a French-Israeli satellite mission which captures high resolution multi-spectral images every two days over selected sites. The Theia land data center is kind enough to provide L2A images (bottom-of-atmosphere), which can be easily downloaded by batch (see this tutorial). Here I selected all the images of a site near Mount Cook in the […]
L’enneigement est plutôt bon cette année dans les Alpes comme le remarque le chef du centre Météo-France des Alpes du Nord.
The snow cover is not always white. Sometimes it is orange, sometimes it is black. The images below were captured by Sentinel-2 in Prokopyevsk, Russia.According to the Siberian Times the deposition of black dust on snow in February 2019 was due to the failure of a filtering system in a coal processing plant. Looking at […]