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Master Thesis

Étude de la géomorphologie de la rivière Drôme : analyses des évolutions morphologiques et du fonctionnement géomorphologique du cours d'eau

Abstract : The Drôme River is characterized by anastomosing streams. To understand its geomorphology, we propose an analysis based on the study of morphological changes in the past and regarding the watershed history. This method involves a diachronic analysis mapping the active channel to highlight the evolution of the dynamic side of the river and a diachronic analysis of longitudinal profiles. The combination of these two analyzes shows two important morphological phenomena: a regressive erosion inducing a global incision of the river and remarkable shrinkage of the active channel all along the river. These phenomena find their explanation in human actions led on the river and the watershed during the twentieth century, the massive extraction of sediment is the predominant factor. Since the nineties, there is no more sediment extraction and the Drôme river seems to seek a new balance through these new conditions.
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-00771706
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Submitted on : Wednesday, January 9, 2013 - 11:17:55 AM
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  • HAL Id : dumas-00771706, version 1

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Guillaume Storer. Étude de la géomorphologie de la rivière Drôme : analyses des évolutions morphologiques et du fonctionnement géomorphologique du cours d'eau. Sciences agricoles. 2012. ⟨dumas-00771706⟩

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