Disparition du delta intérieur du Drac et naissance de la presqu’île grenobloise : signature de la fin du Petit Age Glaciaire

Abstract : From a wide variety of maps and iconographic sources, spatially corrected and georeferenced, this work seeks to precisely reconstruct the hydro-morphological changes at the confluence of two main Alpine rivers: Drac and Isère. Multi-centennial knowledge of the morphological evolution this confluence can help in documenting regional climate changes recorded in the Alps. Reconstructing the morphological transformations of this area also allows to better understand the environmental context in which one of the major Alpine cities may have developed over the centuries: Grenoble. Between the 16th century and the 18th century, the confluence was a large torrential cone that can be called inland delta. It recorded many morphological changes, consequent to the progressive termination of Little Ice Age. Of course the human impact on these rivers is not without consequences on the river landscapes evolution. However, this work shows that during the late 18th century, the containment policies of the Drac has mainly fixed the pattern of a pre-existing river landscape.
Complete list of metadatas

https://hal-sde.archives-ouvertes.fr/hal-01498698
Contributor : Dominique Dumas <>
Submitted on : Thursday, March 30, 2017 - 2:47:48 PM
Last modification on : Friday, May 10, 2019 - 5:38:31 PM

Links full text

Identifiers

Citation

Dominique Dumas, Adrien Favillier. Disparition du delta intérieur du Drac et naissance de la presqu’île grenobloise : signature de la fin du Petit Age Glaciaire. Cybergeo : Revue européenne de géographie / European journal of geography, UMR 8504 Géographie-cités, 2017, 809, ⟨http://cybergeo.revues.org/27976⟩. ⟨10.4000/cybergeo.27976⟩. ⟨hal-01498698⟩

Share

Metrics

Record views

211