A l'UM la science [S04-ep20] : Riding the waves
This week on A l'UM la science, Frédéric Bouchette and Garance Marlier, researchers at Géosciences Montpellier explain their work to combat the retreat of the coastline. The report follows the steps involved in creating an optical TP hologram, and our last-minute guest presents a lecture by Jean-Baptiste Fresson. lecture by Jean-Baptiste Fressoz. A program broadcast on Divergence every Wednesday at 6pm.
In 1946, Trenet sang: "La mer qu'on voit danser" ("The sea we see dancing"), in 2046 others might sing: "La mer qu'on voit monter" ("The sea we see rising"). The reality is undeniable: inch by inch, the coastline is receding. The inhabitants of the Hérault coastline are already confronted with this situation, and are trying to prepare for it, whether they like it or not. The dismantling of the straw huts at Grand Travers and La Grande Motte, ordered last year by the administrative court following a complaint by environmental associations, is a case in point.
The mayor of Palavas-les-Flots, meanwhile, is playing other cards in his bid to save his Atlantis. While he told the press last year that he didn't "have the feeling that the sea is invading us and doesn't want to panic people ", he has also launched the Palavas Horizon 2050 program, aimed at preserving the beach and restoring the coastline, drawing on the expertise of researchers and experts.
Our guests today are some of the researchers who are trying to propose solutions to local authorities. Frédéric Bouchette is a researcher at the Géosciences Montpellier laboratory, and Garance Marlier has just completed her thesis. They experimented with a biomimetic solution in Palavas-les-Flots to limit sediment transit. Their work has been published in the Journal of marine science and engineering.
Read :
Spectral Water Wave Dissipation by Biomimetic Soft Structure
When the sea risesLUM 17.
In the second half of the program, we continue our course at the Faculty of Science, heading for Triolet to attend a practical optics session with Thierry Guillet and Steeve Cronenberg Professors at the UM. We're following two third-year fundamental physics students. Today's objective: to print a hologram on a glass plate.
Our last-minute guest will be Anne Coudrain, Occitanie Vice-President of the French Society of Engineers and Scientists(IESF) and Honorary Research Director at the IRD. She will be presenting a conference organized by the IESF in conjunction with Polytech Montpellier to mark the National Engineer's Day. It takes place on March 20 at 2.30pm at the Institut de Botanique. Science historian Jean-Baptiste Fressoz will give a lecture on the theme of Climate and energy: a history without transition. Open to all, registration required.
At UM la science you've got the program, let's go!
Coproduction: Divergence FM / Université de Montpellier
Animation: Lucie Lecherbonnier
Interview : Lucie Lecherbonnier / Aline Périault
Reporting and editing: Lucie Lecherbonnier / Aline Périault
Production: Alice Rollet
Listen to the "A l'UM la science" program on Divergence FM 93.9
