Iconographie et Géomorphologie : l’usage de représentations artistiques des rivages comme outil de connaissance de l’évolution du littoral

Edwige Motte 1
1 LETG - Rennes - Littoral, Environnement, Télédétection, Géomatique
LETG - Littoral, Environnement, Télédétection, Géomatique UMR 6554
Abstract : The shoreline is submitted to constant changes : its evolution results from both biophysical processes – swells, storms, ocean currents, meteorological factors –, and significant anthropisation, strongly accentuated during the last centuries. In France, on the coast of the Channel, variety and sumptuousness of types of coasts have aroused the inspiration of numerous artists, especially since the middle of the 19th century. Museums, archives, private collections possess precious records of the story of places. This research aims to reveal the informative value of artistic shoreline iconography to observe geomorphological evolutions of the coast. The first part contextualizes the general approach, setting out some essential theoretical considerations centered on modern geomorphology, the status of images in geography and a retrospective of the history of landscape pictorial representations. The second part concretely explores the foreseen potential of using artistic documents as knowledge sources at the scale of the French coasts of the Channel. From a limited corpus of art works, a methodology is developed. Finally, the third and last part of the work presents an application of the developed methodology in a precise context. The territory considered is the Rance estuary, with, as main issue, the identification and evaluation of architectural and sedimentological modifications that occurred in the coastline and foreshore. Results are released through a dedicated Website, which intends to be consulted, and eventually contributed, by a large public.
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Edwige Motte. Iconographie et Géomorphologie : l’usage de représentations artistiques des rivages comme outil de connaissance de l’évolution du littoral. Géographie. Université Rennes 2, 2017. Français. ⟨NNT : 2017REN20036⟩. ⟨tel-01894893v2⟩

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