Modéliser pour comprendre la Terre

Des montagnes à perte de vue, des pentes fortes, de la pluie, de la déforestation… Au Rwanda, toutes les conditions sont réunies pour que le sol glisse. Une équipe de géologues du CNRS s'y rend tous les six mois pour observer trois types de glissement de terrain et mieux comprendre ces phénomènes. Les modélisations qu'ils réalisent permettrons de prévenir les risques des prochains glissements de terrain.

This second episode looks at the work of scientists at the Grenoble Institute of Geosciences who are studying the climate change effect on glacier behaviour. In mountainous and polar regions, glaciologists such as Fanny Brun measure the melting glaciers and collect ice samples, sometimes under extreme conditions, as evidence of climate change over time. Laboratory analyses are used to understand the climate change effect on glacier behaviour. Gerhard Krinner, a…

Une zone sous-marine de 150 x 250 km avec les marées, le vent, la rotation de la Terre reproduites en miniature, c'est le défi que s'est lancé l'équipe du LEGI de Grenoble, en recréant pour la 1ère fois au monde dans une maquette le détroit de Gibraltar. Un exploit rendu possible au sein de la plateforme tournante Coriolis. Ce reportage nous présente le détroit comme un laboratoire en modèle réduit, ce qui va permettre aux chercheurs de comprendre comment des phénomènes très localisés…

This fourth episode is devoted to the sets of equations that represent the physical mechanisms that affect our planet, such as the circulation of water and carbon. How are these models developed? What are they used for? Meet the scientists who are sounding the alarm with the help of these models.

The Youtube channel Zeste de science explores all aspects of scientific research, proving that even the most complicated scientific facts can be explained in less than 5 minutes, and that even the most seemingly trivial events of everyday life, if thoroughly studied, can contribute to the biggest technological advances. Episode 24: What happens when two planets collide? The smaller one desintegrates but the bigger one survives, even though some…

The Youtube channel Zeste de science explores all aspects of scientific research, proving that even the most complicated scientific facts can be explained in less than 5 minutes, and that even the most seemingly trivial events of everyday life, if thoroughly studied, can contribute to the biggest technological advances. Episode 13: The surface of the Earth is divided into several tectonic plates of different sizes that slowly age and sink under one another. Scientists…

The scale and speed of the change in climate we are facing today is unprecedented. Heat waves, droughts, floods? We are already experiencing the effects on a daily basis. The effects will increase until at least 2050 and all European regions will be affected. Based on the results of the latest available studies, and in particular on the 6th IPCC report, this animated film produced by scientists in the framework of the European project EUCP presents the changes in Europe's climate expected in…

At the "Ondes et Matière ' " laboratory in Aquitaine, soap bubbles have become a study subject for detecting instability and turbulence. The aim is to simulate flux and flows to create faithful models of vortexes comparable to natural phenomena such as cyclones, hurricanes and typhoons.