L'infrastructure de recherche « Pôle de données et services pour le système Terre », à la pointe des techniques d'imagerie et de cartographie numérique

National audienceObserve, understand and predict the history, operation and evolution of the Earth system, subject as it is to global changes, is a fundamental topic for research and a necessity for pursuing sustainable development goals. This calls for an interoperable infrastructure to speed up the extraction, analysis, diffusion and intelligent use of data, and for indicators and models derived from national and international systems of observation. Intended for scientists, public officials and innovators, these products and services are accessible via the Internet portals that, used for space missions and observation networks, support sustainable development. Coordinate, federate and optimize the existing set of institutions, arrangements and means are among the major ambitions of the Earth System program (IR Système Terre) with its European and international aspirations.Observer, comprendre et prévoir de manière intégrée l'historique, le fonctionnement et l'évolu­tion du système Terre soumis aux changements globaux est un enjeu fondamental de recherche et une nécessité pour la mise en oeuvre des objectifs du développement durable. Cela nécessite des infrastructures interopérables permettant d'accélérer l'extraction, l'analyse, la diffusion et l'usage intelligent des données, des indicateurs et des modèles issus des systèmes nationaux et internationaux d'observation. Destinés aux scientifiques, aux acteurs publics et à ceux de l'innovation, ces produits et services sont accessibles via des portails dédiés, contribuant aux missions spatiales, à celles des réseaux d'observation et venant en appui des politiques de dé­veloppement durable. Coordonner, fédérer et optimiser l'ensemble des institutions, dispositifs et moyens existants constitue une des ambitions importantes de l'IR système Terre, qui a aussi une vocation européenne et internationale dans ce domaine

A new french infrastructure for satellite and in situ data and services on the earth system

International audienceStudying the structure and understanding processes acting in the Earth system at various temporal and spatial scales in order also to predict its evolution and extreme events demand an easy and interoperable access to the numerous observation data acquired on ground, in oceans, from space,... regardless their nature and mode of collection. Indeed, to study the Earth System today requires to take into account processes acting in each terrestrial component but also to understand how they interact. In the meantime, the fantastic evolution of the observation techniques results in an unprecedented increase of the rate and volume of data acquisition. This requires innovative plan easing analysis, dissemination and smart use of data and models from national and international observing systems on the entire Earth System and their access by the scientific community, public policy actors and citizens. This is why we are currently setting the Earth System data and services research infrastructure in the framework of the French national roadmap. Our project federates for the time being four data and services poles dedicated to the four physical compartments of the Earth System: Aeris for the atmosphere, Odatis for the oceans, Theia for continental surfaces and ForM@Ter for the solid Earth. Our goal is to give an easy access to data (mainly satellite and in situ) and to generate derived products (including modeling) usable by all scientific communities studying our globe as well as by public policy actors