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Between land and sea

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  00:54:00  2016  HD 16/9  Color  Sound

About 27 % of French mainland coastline is eroding. These areas became increasingly vulnerable in recent years. With a growing population living less than 25 kilometres from sea shores in France and all over the world new challenges are looming. Not only erosion and receding coastlines but also major societal issues.
There are three types of coastal environments in France: estuaries, cliffs and sandy beaches. As they have extremely different morphologies, the processes causing changes and erosion in these environments also greatly differ. In the 1970s, hard structural protections were built to fix shorelines, but these structures sometimes caused the problems to occur in some other places. New and more flexible solutions are now studied and other technologies are being tested. These are analysed by several dozens of scientists from different research organisations like the CNRS, the BRGM, the CNES and the SHOM. By using complementary tools and approaches, they try to characterize and understand the mechanisms governing the change in the territorial boundaries formed by the shoreline in a long-term perspective. Faced with the current risks and issues, researchers try to find the best solutions to address the complex phenomena with their local characteristics through exchanges with local populations and authorities.

Associate producer : CNRS Images
Producer : CNRS-INSU
Coproducer : BRGM
Participation : CNESAirbus Defence and Space
 
Author : COLOMBANI HervéGUERARD Jean-Jacques (CNRS Images, UPS CNRS, Meudon)
Director : COLOMBANI HervéGUERARD Jean-Jacques (CNRS Images, UPS CNRS, Meudon)
Identification
Audiovisual processReal shots. Use of 3D images. Use of archive images and aerial shots. Use of black and white and colour photographs.
Voice over and interviews (live sound). Original music soundtrack.
PersonnalitiesARNAUD Nicolas(Géosciences Montpellier, UMR CNRS, Univ. Montpellier et Univ. Antilles); DELACOURT Christophe(Domaines océaniques, UMR CNRS, Univ. Bretagne Occidentale, Univ. Bretagne-Sud et SCEF Hydrograph Océanographique Marine); AMMANN Jérôme(Domaines océaniques, UMR CNRS, Univ. Bretagne Occidentale, Univ. Bretagne-Sud et SCEF Hydrograph Océanographique Marine); JAUD Marion(Domaines océaniques, UMR CNRS, Univ. Bretagne Occidentale, Univ. Bretagne-Sud et SCEF Hydrograph Océanographique Marine); COSTA Stéphane(LETG, UMR CNRS, Univ. Nantes, Univ. de Bretagne occidentale, Univ. Haute Bretagne, Univ. Caen Basse Normandie et Univ. Angers, Caen); SUANEZ Serge(LETG, UMR CNRS, Univ. Nantes, Univ. de Bretagne occidentale, Univ. Haute Bretagne, Univ. Caen Basse Normandie et Univ. Angers, Brest); LETORTU Pauline(LETG, UMR CNRS, Univ. Nantes, Univ. de Bretagne occidentale, Univ. Haute Bretagne, Univ. Caen Basse Normandie et Univ. Angers, Brest); HENAFF Alain(LETG, UMR CNRS, Univ. Nantes, Univ. de Bretagne occidentale, Univ. Haute Bretagne, Univ. Caen Basse Normandie et Univ. Angers, Brest); LEVOY Franck(M2C, UMR CNRS, Univ. Caen Basse-Normandie et Univ. Rouen); ALMAR Rafael(LEGOS, UMR CNRS, Univ. Toulouse Paul Sabatier, IRD et CNES, Toulouse); SENECHAL Nadia(EPOC, UMR CNRS, Univ. Bordeaux et EPHE); TANGUY Yves-Marie(Service hydrographique et océanographique de la Marine); DE LA TORRE Ywenn(BRGM Languedoc - Roussillon); BALOUIN Yann(BRGM Languedoc - Roussillon); MARCOT Nathalie(BRGM PACA); ULTRE-GUERARD Pascale(Responsable Programme Terre Environnement Climat au CNES ); GARLAN Thierry(Domaines océaniques, UMR CNRS, Univ. Bretagne Occidentale, Univ. Bretagne-Sud et SCEF Hydrograph Océanographique Marine); BOUCHETTE Frédéric(Géosciences Montpellier, UMR CNRS, Univ. Montpellier et Univ. Antilles); MALLET Cyril(BRGM Aquitaine)
NotesBRGM : Bureau de Recherches Géologiques et Minières
LGLTPE : Laboratoire de géologie de Lyon : Terre, planètes, environnement
LETG : Littoral, Environnement, Géomatique, Télédétection
M2C : Morphodynamique Continentale et Côtière
LEGOS : Laboratoire d’Etudes en Géophysique et Océanographie Spatiales
EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux
CNES : Centre d'études spatiales
SHOM : Service Hydrographique de la Marine et océanographique de la Marine
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Discipline

Ecology ; Earth Sciences ; Geography

Technical Sheet
Number4705
Original SupportHD
VersionFrench
Delivery supportDVD