Applications

Patagonian skies are not cloudy anymore

« The most usual weather in these latitudes is a fresh wind between north west and south west with a cloudy overcast sky » – Phillip Parker King, Sailing Directions for the Coasts of Eastern and Western Patagonia (1832). Patagonia is a beautiful place to visit but campers know that the weather is extremely variable and the […]

Applications

Irrigated crop maps for a better water management in agriculture

=>In a previous post, i have briefly presented: To classify irrigated farmland, within the growing period and at the scale of a territory, we focused on the use of optical remote sensing images. In the lines below, I will introduce the work to generate maps of irrigated crops usin Landsat-8 time series level 2A made […]

In English

An overview of irrigation evolution in Central Asia with Landsat

In Central Asia former soviet republics, pre-independence water allocation and irrigation system infrastructure were well maintained and operated with massive funding from the central government of the Former Soviet Union. Since independence, the situation has changed dramatically politically, institutionally and technically. Political transition from a planned to a market economy has introduced ‘new’ concepts such […]

In English

THEIA releases Sentinel-2 L2A data over France

=>A first large scale data set of Sentinel-2 level 2A products was just issued by CNES. It contains all the data acquired by Sentinel-2 over France, from December 1st, 2015 until end of August. It was produced with MACCS on MUSCATE ground segment. The data can be downloaded from :  In case all DNS are not […]

En Français

Theia diffuse les données de niveau 2A de Sentinel-2 sur la France

  =>Le CNES vient de mettre en ligne un premier lot de produits Sentinel-2 de niveau 2A. Il contient toutes les données acquises par Sentinel-2 au dessus de la France, depuis décembre 2015 jusqu’à fin août 2016. Les données ont été produites par la chaîne MACCS sur le nouveau centre de traitement MUSCATE, dont il […]

Applications

Scientists anticipate another glacier collapse in Tibet from satellite data

The giant ice avalanche that occurred in Tibet on 17 July 2016 and killed 9 people [1] urged scientists to scrutinize every available data to understand what caused such a glacier collapse. In doing so, they witnessed in near real time the ongoing collapse of a second glacier.

Applications

Des cartes de cultures irriguées pour une meilleure gestion de l’eau en agriculture

=>Dans un billet précédent, je vous avais brièvement présenté: Pour classer les surfaces agricoles irriguées, en cours de campagne et à l’échelle d’un territoire, nous nous sommes, dans un premier temps, focalisés sur l’utilisation d’images satellitaires optiques.Dans les lignes qui vont suivre, je vais vous présenter le travail réalisé pour générer des cartes de cultures […]

Applications

Monitoring the snow cover in ski resorts using Sentinel-2

=> We are preparing the distribution of maps of the snow cover extent made from the Sentinel-2 data for Theia. If the method used to detect the snow is based on well-proven concepts, spatial and temporal resolution of the snow maps will however quite unprecedented. Until now, maps of the snow cover extent were usually produced […]

Applications

Suivi de l’enneigement des stations de ski avec Sentinel-2

=> Dans le cadre du pôle thématique Theia nous préparons la distribution de cartes d’enneigement établies à partir des images Sentinel-2. Si la méthode utilisée pour la détection du manteau neigeux se base sur des concepts bien éprouvés, la résolution spatio-temporelle des cartes d’enneigement sera en revanche tout à fait inédite. Jusqu’ici les cartes d’enneigement […]